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Mathias Bonet

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Papers by Mathias Bonet

Feeder Load Balancing Using Genetic Algorithms and Artificial Neural Network

Mekatronika, Jun 15, 2022

The continuous growth in electrical energy demand and pressing need for better quality of service... more The continuous growth in electrical energy demand and pressing need for better quality of service has necessitated the need for continuous load balancing along a distribution network [5]. Over time, distribution feeders have tendency to increase in load unbalance due to the following: Loads on single-phase lines may gradually increase. Single-phase lines arbitrarily get manually switched to other phases. Unequal distribution of single-phase loads on three phase lines. Lack of proper system planning. ABSTRACT-Low voltage power distribution system problems such as system planning, energy loss minimization and restoration usually involve proper load balancing or network reconfiguration procedures. To achieve an appreciable level of load phase balance, feeder reconfiguration using appropriate switching control strategy such as: Simulated Annealing, Tabu Search, Particle Swarm Optimization, and heuristic algorithms are viable preferences. However, the systematic solution to load phase balancing can be greatly enhanced optimally through implementation of an appropriate combinatorial optimization procedure such as Genetic Algorithms and Artificial Neural Network. Accordingly, this paper presents a genetic algorithms procedure to enhance the load phase balancing optimization and then train an artificial neural network to automate the reconfiguration of the distribution network loads, thus ensuring an optimal phase balancing in the system. An Intel® 2.0 GHz, 4GB RAM HP255 computer-based MATLAB® 14 was used for the neural network training, testing, and the implementation of the genetic algorithms. The outputs of the algorithms are the switching sequence for a balanced network. The parameters ΔIph (max-min) and Δ(Iph-Imax) which is the maximum difference between the phase currents, which are ideally zero if there are no imbalances in the network, shows considerable improvement in the balancing when compared with other literatures. This work presents the application examples of the proposed methods using real test data.

Comparative Assessment of Two Thermodynamic Cycles of an aero-derivative Marine Gas Turbine

IOSR Journal of Mechanical and Civil Engineering, 2013

This paper explores the gas turbine potentials that are fully enhanced by the use of intercooling... more This paper explores the gas turbine potentials that are fully enhanced by the use of intercooling and thermal recuperation as an engineering option available in the design of gas turbines and offered for marine applications. It examines the off-design performance of two different cycle designs of a 25MW aero-derivative engine by modelling and simulating each of them to operate under conditions other than those of their design point. The simple cycle model consists of a single-spool dual shaft layout while the advanced model is represented by an intercooled-recuperated cycle that runs on a dual-spool and is driven through a three shaft configuration. In each case, the output shaft is coupled to a power turbine through which the propulsion power may be transmitted to the propeller of the vessel to operate in a virtual marine environment. An off-design performance simulation of both engines has been conducted in order to investigate and compare the effect of ambient temperature variation during their part-load operation and particularly when subjected to a variety of marine operating conditions. The study assesses the techno-economic impact of the complex design of the advanced cycle over its simple cycle counterpart and demonstrates its potential for improved operating cost through reduced fuel consumption as a significant step in the current drive for establishing the marine gas turbine engine as a viable alternative to traditional prime movers in the ship propulsion industry.

Voyage Analysis of a Marine Gas Turbine Engine Installed to Power and Propel an Ocean-Going Cruise Ship

World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 2018

A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeri... more A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeria to the Islamic port city of Jeddah in Saudi Arabia. Since the gas turbine is an air breathing machine, changes in the density and/or mass flow at the compressor inlet due to an encounter with variations in weather conditions induce negative effects on the performance of the power plant during the voyage. In practice, all deviations from the reference atmospheric conditions of 15 o C and 1.103 bar tend to affect the power output and other thermodynamic parameters of the gas turbine cycle. Therefore, this paper seeks to evaluate how a simple cycle marine gas turbine power plant would react under a variety of scenarios that may be encountered during a voyage as the ship sails across the Atlantic Ocean and the Mediterranean Sea before arriving at its designated port of discharge. It is also an assessment that focuses on the effect of varying aerodynamic and hydrodynamic conditions which deteriorate the efficient operation of the propulsion system due to an increase in resistance that results from some projected levels of the ship hull fouling. The investigated passenger ship is designed to run at a service speed of 22 knots and cover a distance of 5787 nautical miles. The performance evaluation consists of three separate voyages that cover a variety of weather conditions in winter, spring and summer seasons. Real-time daily temperatures and the sea states for the selected transit route were obtained and used to simulate the voyage under the aforementioned operating conditions. Changes in engine firing temperature, power output as well as the total fuel consumed per voyage including other performance variables were separately predicted under both calm and adverse weather conditions. The collated data were obtained online from the UK Meteorological Office as well as the UK Hydrographic Office websites, while adopting the Beaufort scale for determining the magnitude of sea waves resulting from rough weather situations. The simulation of the gas turbine performance and voyage analysis was effected through the use of an integrated Cranfield-Universitydeveloped computer code known as 'Turbomatch' and 'Poseidon'. It is a project that is aimed at developing a method for predicting the off design behavior of the marine gas turbine when installed and operated as the main prime mover for both propulsion and powering of all other auxiliary services onboard a passenger cruise liner. Furthermore, it is a techno-economic and environmental assessment that seeks to enable the forecast of the marine gas turbine part and full load performance as it relates to the fuel requirement for a complete voyage.

Design and Implementation of a Low-Cost Portable Water Quality Monitoring System

Computers, materials & continua, 2021

Water is one of the needs with remarkable significance to man and other living things. Water qual... more Water is one of the needs with remarkable significance to man and other living things. Water quality management is a concept based on the continuous monitoring of water quality. The monitoring scheme aims to accumulate data to make decisions on water resource descriptions, identify real and emergent issues involving water pollution, formulate priorities, and plan for water quality management. The regularly considered parameters when conducting water quality monitoring are turbidity, pH, temperature, conductivity, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand, ammonia, and metal ions. The usual method employed in capturing these water parameters is the manual collection and sending of samples to a laboratory for detection and analysis. However, this method is impractical in the long run because it is laborious and consumes a considerable amount of human resources. Sensors integrated into a mobile phone application interface can address this issue. This paper aims to design and implement an Internet of Things-based system comprising pH, temperature, and turbidity sensors, which are all integrated into a mobile phone application interface for a water monitoring system. This project utilizes the Bluetooth Standard (IEEE 802.15.1) for communication/transfer of data, while the water quality monitoring system relies on the pH, turbidity, and temperature of the test water.

Design and Modelling of Ground Proximity Warning System (GPWS) for Training Aid

Open Journal of Engineering Science (ISSN: 2734-2115)

Controlled flight into terrain (CFIT) is the most common type of aircraft crashes in the world of... more Controlled flight into terrain (CFIT) is the most common type of aircraft crashes in the world of aviation today. Following the sheer volume of terrain collisions, there was an introduction of CFIT classification to enable the grouping into one category of all crashes involving aircrafts colliding with terrains. To avert CFIT accidents, the Ground Proximity Warning System (GPWS) was introduced onboard the aircraft for the flight crew to be aware of the moment the aircraft is approaching a ground terrain via automatic and very distinct acoustic warning. This paper presents a digital display ground proximity warning system as a teaching aid with audio prompt using ultrasonic sensor to produce forward distance from aircraft to obstacle ahead, height, inclination of aircraft in relation to its terrain beneath the aircraft and a digital computer interface for instrument visualization for better performance using graphic user interface (GUI) thereby enabling clearer understanding on GPWS....

Performance and Fuel Consumption Investigation of an Intercooled-Recuperated Marine Gas Turbine

Performance Investigation of a 650W Domestic Portable Electric Power Generator using Ethanol as an alternative Fuel

This paper investigates the performance output of a 650W gasoline powered portable domestic elect... more This paper investigates the performance output of a 650W gasoline powered portable domestic electric generator (Tiger TG950) through an experimental application of a variety of ethanol-gasoline blends as fuel contrary to the use of the regular gasoline (petrol) as originally designed. It examines the potential use of ethanol as an alternative fuel for operating domestic electric generators for local powering of small households and businesses. The research forms part of an ongoing global effort of reducing exhaust gas emissions associated with the use of fossil fuels in Internal Combustion Engines. Electric bulbs with a capacity ranging from 100W to 600W were used to apply a lighting load while physically observing the variation of the voltage and alternating current being generated and the ability of the generator to provide adequate lighting to meet the demand. The performance of the baseline fuel was first assessed before advancing to use the different starting from 10% before up to 100% ethanol. In each case, the investigation was continued by the application of an initial load of 100W and increasing it by the same margin up to 600W. The results demonstrate that locally manufactured ethanol can be a viable alternative to fossil fuels for powering domestic portable electric generators in small households and businesses both in our urban centres and rural areas.

Performance, Characterization and Evaluation of Axial Flow Turbine Engine

International Journal of Advances in Scientific Research and Engineering, 2019

This research paper mainly focuses on the performance, characterization and evaluation of the axi... more This research paper mainly focuses on the performance, characterization and evaluation of the axial flow gas turbine engine used for aircraft applications. Attempt from previous researches were to increase the efficiency and work output of the turbine. To achieve further improvement in the efficiency, the turbine blades were subjected to a higher temperature. With the knowledge from material science and engineering, suitable materials were selected for the design of suitable blades that can withstand higher temperature without failure. To achieve the efficient performance of the turbine, the hot gases from the combustor, are to be directed at a suitable angle at the entry to the turbine as well as exit from the turbine. This research work thoroughly focuses on how the blade configuration are designed to achieve the desired output. Development of the axial flow gas turbine was hindered by the need to obtain both a high-enough flow rate and compression ratio from a compressor to maintain the air requirement for the combustion process and subsequent expansion of the exhaust gases. Design specifications were given, to provide a detailed understanding of axial flow turbine design. Values obtained were used to produce a graph that explained how turbine parameters vary.

Techno-environmental assessment of marine gas turbines for the propulsion of merchant ships

This research study seeks to evaluate the techno-economic and environmental implications of a var... more This research study seeks to evaluate the techno-economic and environmental implications of a variety of aero-derivative marine gas turbine cycles that have been modelled for the propulsion of different types of merchant ships. It involves the installation and operation of gas turbine propulsion systems in different marine environmental conditions and aims to evaluate the effect of the aerodynamic and hydrodynamic variations expected to be encountered by these ships when they navigate across different climates and oceans along selected fixed trade routes. A combination of simulation tools developed in Cranfield University at the Department of Power and Propulsion including the validated gas turbine modelling and simulation code called "Turbomatch" and the "APPEM" simulation code for the analysis and Prediction of exhaust pollutants have been used along with the ongoing development of an integrated marine gas turbine propulsion system simulation platform known as "Poseidon".

Voyage Analysis Of A Marine Gas Turbine Engine Installed To Power And Propel An Ocean-Going Cruise Ship

A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeri... more A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeria to the Islamic port city of Jeddah in Saudi Arabia. Since the gas turbine is an air breathing machine, changes in the density and/or mass flow at the compressor inlet due to an encounter with variations in weather conditions induce negative effects on the performance of the power plant during the voyage. In practice, all deviations from the reference atmospheric conditions of 15 <sup>o</sup>C and 1.103 bar tend to affect the power output and other thermodynamic parameters of the gas turbine cycle. Therefore, this paper seeks to evaluate how a simple cycle marine gas turbine power plant would react under a variety of scenarios that may be encountered during a voyage as the ship sails across the Atlantic Ocean and the Mediterranean Sea before arriving at its designated port of discharge. It is also an assessment that focuses on the effect of varying aerodynamic and hydrodynam...

Design and Implementation of a Low-Cost Portable Water Quality Monitoring System

Computers Materials & Continua, 2021

Voyage Analysis of a Marine Gas Turbine Engine Installed to Power and Propel an Ocean-Going Cruise Ship

World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 2018

A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeri... more A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeria to the Islamic port city of Jeddah in Saudi Arabia. Since the gas turbine is an air breathing machine, changes in the density and/or mass flow at the compressor inlet due to an encounter with variations in weather conditions induce negative effects on the performance of the power plant during the voyage. In practice, all deviations from the reference atmospheric conditions of 15 oC and 1.103 bar tend to affect the power output and other thermodynamic parameters of the gas turbine cycle. Therefore, this paper seeks to evaluate how a simple cycle marine gas turbine power plant would react under a variety of scenarios that may be encountered during a voyage as the ship sails across the Atlantic Ocean and the Mediterranean Sea before arriving at its designated port of discharge. It is also an assessment that focuses on the effect of varying aerodynamic and hydrodynamic conditions which det...

Techno‐economic and environmental assessment of bioethanol‐based chemical process: A case study on ethyl acetate

… & Sustainable Energy

Biomass resources are widely acknowledged as a potential substitute for fossil resources for sust... more

An Inquisition on the Combined Effects of Ambient Temperature and Relative Humidity on The Performance of a Uniform Speed Single Shaft Gas Turbine in Tropical Monsoon Climate, using GPAL

European Journal of Engineering Research and Science

This paper investigates the combined effects of Ambient Temperature and Relative Humidity on the ... more This paper investigates the combined effects of Ambient Temperature and Relative Humidity on the performance of a uniform speed single shaft Gas Turbine, sited in Tropical Monsoon climate. A single shaft gas turbine simulator (known as GPAL) from Gas path Analysis ltd was employed. The City of Portharcourt, Nigeria, was chosen to represent the tropical monsoon climate, with its climatic data of monthly ambient temperature and relative humidity obtained from Koppen. With parameters like speed, reference power, inlet and exhaust losses kept constant, the ambient temperature and relative humidity were continually varied according to their climatic values. Each time, the performance of the gas turbine was simulated and parameters such as; Efficiency, Turbine power and Net power output, Turbine inlet Temperature and Exhaust Gas Temperature, as well as Specific fuel consumption were monitored. The environmental impact of the gas turbine was equally assessed in terms of Carbon (IV) Oxide (...

Techno-Economic and Environmental Assessment of an Intercooled-Recuperated (ICR) Marine Gas Turbine for powering a LNG Carrier

An ICR aero-derivative marine gas turbine has been modelled alongside its simple cycle counterpar... more An ICR aero-derivative marine gas turbine has been modelled alongside its simple cycle counterpart and each of them has been simulated separately to operate as the main propulsion prime mover of a Liquefied Natural Gas Carrier. The vessel is programmed to undertake a commercial voyage in a virtual integrated marine environment similar to the expected prime mover's actual operating conditions in the open Sea. Using actual meteorological data for the selected maritime trade route between Algiers and Portsmouth, the impact of prevailing climatic changes plus the variation of sea states and degradation of the submerged ship hull surface on the engine power output and speed of the vessel have been investigated. This research attempts to predict the total quantity of fuel burned during the voyage and suggests that the boil off gas of the ship's cargo may be used along with the liquid fuel as a dual-fuel system for powering the installation. A comparative analysis of the performance of the two different thermodynamic cycles demonstrates the economic benefits of the ICR cycle over the simple cycle while revealing the viability of the marine gas turbine as an alternative to the conventional steam turbine that has since dominated the LNG Carrier propulsion industry due to its ability to convert the boil off gas for powering the vessel with a very high economic potential.

Feeder Load Balancing Using Genetic Algorithms and Artificial Neural Network

Mekatronika, Jun 15, 2022

The continuous growth in electrical energy demand and pressing need for better quality of service... more The continuous growth in electrical energy demand and pressing need for better quality of service has necessitated the need for continuous load balancing along a distribution network [5]. Over time, distribution feeders have tendency to increase in load unbalance due to the following: Loads on single-phase lines may gradually increase. Single-phase lines arbitrarily get manually switched to other phases. Unequal distribution of single-phase loads on three phase lines. Lack of proper system planning. ABSTRACT-Low voltage power distribution system problems such as system planning, energy loss minimization and restoration usually involve proper load balancing or network reconfiguration procedures. To achieve an appreciable level of load phase balance, feeder reconfiguration using appropriate switching control strategy such as: Simulated Annealing, Tabu Search, Particle Swarm Optimization, and heuristic algorithms are viable preferences. However, the systematic solution to load phase balancing can be greatly enhanced optimally through implementation of an appropriate combinatorial optimization procedure such as Genetic Algorithms and Artificial Neural Network. Accordingly, this paper presents a genetic algorithms procedure to enhance the load phase balancing optimization and then train an artificial neural network to automate the reconfiguration of the distribution network loads, thus ensuring an optimal phase balancing in the system. An Intel® 2.0 GHz, 4GB RAM HP255 computer-based MATLAB® 14 was used for the neural network training, testing, and the implementation of the genetic algorithms. The outputs of the algorithms are the switching sequence for a balanced network. The parameters ΔIph (max-min) and Δ(Iph-Imax) which is the maximum difference between the phase currents, which are ideally zero if there are no imbalances in the network, shows considerable improvement in the balancing when compared with other literatures. This work presents the application examples of the proposed methods using real test data.

Comparative Assessment of Two Thermodynamic Cycles of an aero-derivative Marine Gas Turbine

IOSR Journal of Mechanical and Civil Engineering, 2013

This paper explores the gas turbine potentials that are fully enhanced by the use of intercooling... more This paper explores the gas turbine potentials that are fully enhanced by the use of intercooling and thermal recuperation as an engineering option available in the design of gas turbines and offered for marine applications. It examines the off-design performance of two different cycle designs of a 25MW aero-derivative engine by modelling and simulating each of them to operate under conditions other than those of their design point. The simple cycle model consists of a single-spool dual shaft layout while the advanced model is represented by an intercooled-recuperated cycle that runs on a dual-spool and is driven through a three shaft configuration. In each case, the output shaft is coupled to a power turbine through which the propulsion power may be transmitted to the propeller of the vessel to operate in a virtual marine environment. An off-design performance simulation of both engines has been conducted in order to investigate and compare the effect of ambient temperature variation during their part-load operation and particularly when subjected to a variety of marine operating conditions. The study assesses the techno-economic impact of the complex design of the advanced cycle over its simple cycle counterpart and demonstrates its potential for improved operating cost through reduced fuel consumption as a significant step in the current drive for establishing the marine gas turbine engine as a viable alternative to traditional prime movers in the ship propulsion industry.

Voyage Analysis of a Marine Gas Turbine Engine Installed to Power and Propel an Ocean-Going Cruise Ship

World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 2018

A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeri... more A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeria to the Islamic port city of Jeddah in Saudi Arabia. Since the gas turbine is an air breathing machine, changes in the density and/or mass flow at the compressor inlet due to an encounter with variations in weather conditions induce negative effects on the performance of the power plant during the voyage. In practice, all deviations from the reference atmospheric conditions of 15 o C and 1.103 bar tend to affect the power output and other thermodynamic parameters of the gas turbine cycle. Therefore, this paper seeks to evaluate how a simple cycle marine gas turbine power plant would react under a variety of scenarios that may be encountered during a voyage as the ship sails across the Atlantic Ocean and the Mediterranean Sea before arriving at its designated port of discharge. It is also an assessment that focuses on the effect of varying aerodynamic and hydrodynamic conditions which deteriorate the efficient operation of the propulsion system due to an increase in resistance that results from some projected levels of the ship hull fouling. The investigated passenger ship is designed to run at a service speed of 22 knots and cover a distance of 5787 nautical miles. The performance evaluation consists of three separate voyages that cover a variety of weather conditions in winter, spring and summer seasons. Real-time daily temperatures and the sea states for the selected transit route were obtained and used to simulate the voyage under the aforementioned operating conditions. Changes in engine firing temperature, power output as well as the total fuel consumed per voyage including other performance variables were separately predicted under both calm and adverse weather conditions. The collated data were obtained online from the UK Meteorological Office as well as the UK Hydrographic Office websites, while adopting the Beaufort scale for determining the magnitude of sea waves resulting from rough weather situations. The simulation of the gas turbine performance and voyage analysis was effected through the use of an integrated Cranfield-Universitydeveloped computer code known as 'Turbomatch' and 'Poseidon'. It is a project that is aimed at developing a method for predicting the off design behavior of the marine gas turbine when installed and operated as the main prime mover for both propulsion and powering of all other auxiliary services onboard a passenger cruise liner. Furthermore, it is a techno-economic and environmental assessment that seeks to enable the forecast of the marine gas turbine part and full load performance as it relates to the fuel requirement for a complete voyage.

Design and Implementation of a Low-Cost Portable Water Quality Monitoring System

Computers, materials & continua, 2021

Water is one of the needs with remarkable significance to man and other living things. Water qual... more Water is one of the needs with remarkable significance to man and other living things. Water quality management is a concept based on the continuous monitoring of water quality. The monitoring scheme aims to accumulate data to make decisions on water resource descriptions, identify real and emergent issues involving water pollution, formulate priorities, and plan for water quality management. The regularly considered parameters when conducting water quality monitoring are turbidity, pH, temperature, conductivity, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand, ammonia, and metal ions. The usual method employed in capturing these water parameters is the manual collection and sending of samples to a laboratory for detection and analysis. However, this method is impractical in the long run because it is laborious and consumes a considerable amount of human resources. Sensors integrated into a mobile phone application interface can address this issue. This paper aims to design and implement an Internet of Things-based system comprising pH, temperature, and turbidity sensors, which are all integrated into a mobile phone application interface for a water monitoring system. This project utilizes the Bluetooth Standard (IEEE 802.15.1) for communication/transfer of data, while the water quality monitoring system relies on the pH, turbidity, and temperature of the test water.

Design and Modelling of Ground Proximity Warning System (GPWS) for Training Aid

Open Journal of Engineering Science (ISSN: 2734-2115)

Controlled flight into terrain (CFIT) is the most common type of aircraft crashes in the world of... more Controlled flight into terrain (CFIT) is the most common type of aircraft crashes in the world of aviation today. Following the sheer volume of terrain collisions, there was an introduction of CFIT classification to enable the grouping into one category of all crashes involving aircrafts colliding with terrains. To avert CFIT accidents, the Ground Proximity Warning System (GPWS) was introduced onboard the aircraft for the flight crew to be aware of the moment the aircraft is approaching a ground terrain via automatic and very distinct acoustic warning. This paper presents a digital display ground proximity warning system as a teaching aid with audio prompt using ultrasonic sensor to produce forward distance from aircraft to obstacle ahead, height, inclination of aircraft in relation to its terrain beneath the aircraft and a digital computer interface for instrument visualization for better performance using graphic user interface (GUI) thereby enabling clearer understanding on GPWS....

Performance and Fuel Consumption Investigation of an Intercooled-Recuperated Marine Gas Turbine

Performance Investigation of a 650W Domestic Portable Electric Power Generator using Ethanol as an alternative Fuel

This paper investigates the performance output of a 650W gasoline powered portable domestic elect... more This paper investigates the performance output of a 650W gasoline powered portable domestic electric generator (Tiger TG950) through an experimental application of a variety of ethanol-gasoline blends as fuel contrary to the use of the regular gasoline (petrol) as originally designed. It examines the potential use of ethanol as an alternative fuel for operating domestic electric generators for local powering of small households and businesses. The research forms part of an ongoing global effort of reducing exhaust gas emissions associated with the use of fossil fuels in Internal Combustion Engines. Electric bulbs with a capacity ranging from 100W to 600W were used to apply a lighting load while physically observing the variation of the voltage and alternating current being generated and the ability of the generator to provide adequate lighting to meet the demand. The performance of the baseline fuel was first assessed before advancing to use the different starting from 10% before up to 100% ethanol. In each case, the investigation was continued by the application of an initial load of 100W and increasing it by the same margin up to 600W. The results demonstrate that locally manufactured ethanol can be a viable alternative to fossil fuels for powering domestic portable electric generators in small households and businesses both in our urban centres and rural areas.

Performance, Characterization and Evaluation of Axial Flow Turbine Engine

International Journal of Advances in Scientific Research and Engineering, 2019

This research paper mainly focuses on the performance, characterization and evaluation of the axi... more This research paper mainly focuses on the performance, characterization and evaluation of the axial flow gas turbine engine used for aircraft applications. Attempt from previous researches were to increase the efficiency and work output of the turbine. To achieve further improvement in the efficiency, the turbine blades were subjected to a higher temperature. With the knowledge from material science and engineering, suitable materials were selected for the design of suitable blades that can withstand higher temperature without failure. To achieve the efficient performance of the turbine, the hot gases from the combustor, are to be directed at a suitable angle at the entry to the turbine as well as exit from the turbine. This research work thoroughly focuses on how the blade configuration are designed to achieve the desired output. Development of the axial flow gas turbine was hindered by the need to obtain both a high-enough flow rate and compression ratio from a compressor to maintain the air requirement for the combustion process and subsequent expansion of the exhaust gases. Design specifications were given, to provide a detailed understanding of axial flow turbine design. Values obtained were used to produce a graph that explained how turbine parameters vary.

Techno-environmental assessment of marine gas turbines for the propulsion of merchant ships

This research study seeks to evaluate the techno-economic and environmental implications of a var... more This research study seeks to evaluate the techno-economic and environmental implications of a variety of aero-derivative marine gas turbine cycles that have been modelled for the propulsion of different types of merchant ships. It involves the installation and operation of gas turbine propulsion systems in different marine environmental conditions and aims to evaluate the effect of the aerodynamic and hydrodynamic variations expected to be encountered by these ships when they navigate across different climates and oceans along selected fixed trade routes. A combination of simulation tools developed in Cranfield University at the Department of Power and Propulsion including the validated gas turbine modelling and simulation code called "Turbomatch" and the "APPEM" simulation code for the analysis and Prediction of exhaust pollutants have been used along with the ongoing development of an integrated marine gas turbine propulsion system simulation platform known as "Poseidon".

Voyage Analysis Of A Marine Gas Turbine Engine Installed To Power And Propel An Ocean-Going Cruise Ship

A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeri... more A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeria to the Islamic port city of Jeddah in Saudi Arabia. Since the gas turbine is an air breathing machine, changes in the density and/or mass flow at the compressor inlet due to an encounter with variations in weather conditions induce negative effects on the performance of the power plant during the voyage. In practice, all deviations from the reference atmospheric conditions of 15 <sup>o</sup>C and 1.103 bar tend to affect the power output and other thermodynamic parameters of the gas turbine cycle. Therefore, this paper seeks to evaluate how a simple cycle marine gas turbine power plant would react under a variety of scenarios that may be encountered during a voyage as the ship sails across the Atlantic Ocean and the Mediterranean Sea before arriving at its designated port of discharge. It is also an assessment that focuses on the effect of varying aerodynamic and hydrodynam...

Design and Implementation of a Low-Cost Portable Water Quality Monitoring System

Computers Materials & Continua, 2021

Voyage Analysis of a Marine Gas Turbine Engine Installed to Power and Propel an Ocean-Going Cruise Ship

World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 2018

A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeri... more A gas turbine-powered cruise Liner is scheduled to transport pilgrim passengers from Lagos-Nigeria to the Islamic port city of Jeddah in Saudi Arabia. Since the gas turbine is an air breathing machine, changes in the density and/or mass flow at the compressor inlet due to an encounter with variations in weather conditions induce negative effects on the performance of the power plant during the voyage. In practice, all deviations from the reference atmospheric conditions of 15 oC and 1.103 bar tend to affect the power output and other thermodynamic parameters of the gas turbine cycle. Therefore, this paper seeks to evaluate how a simple cycle marine gas turbine power plant would react under a variety of scenarios that may be encountered during a voyage as the ship sails across the Atlantic Ocean and the Mediterranean Sea before arriving at its designated port of discharge. It is also an assessment that focuses on the effect of varying aerodynamic and hydrodynamic conditions which det...

Techno‐economic and environmental assessment of bioethanol‐based chemical process: A case study on ethyl acetate

… & Sustainable Energy

Biomass resources are widely acknowledged as a potential substitute for fossil resources for sust... more

An Inquisition on the Combined Effects of Ambient Temperature and Relative Humidity on The Performance of a Uniform Speed Single Shaft Gas Turbine in Tropical Monsoon Climate, using GPAL

European Journal of Engineering Research and Science

This paper investigates the combined effects of Ambient Temperature and Relative Humidity on the ... more This paper investigates the combined effects of Ambient Temperature and Relative Humidity on the performance of a uniform speed single shaft Gas Turbine, sited in Tropical Monsoon climate. A single shaft gas turbine simulator (known as GPAL) from Gas path Analysis ltd was employed. The City of Portharcourt, Nigeria, was chosen to represent the tropical monsoon climate, with its climatic data of monthly ambient temperature and relative humidity obtained from Koppen. With parameters like speed, reference power, inlet and exhaust losses kept constant, the ambient temperature and relative humidity were continually varied according to their climatic values. Each time, the performance of the gas turbine was simulated and parameters such as; Efficiency, Turbine power and Net power output, Turbine inlet Temperature and Exhaust Gas Temperature, as well as Specific fuel consumption were monitored. The environmental impact of the gas turbine was equally assessed in terms of Carbon (IV) Oxide (...

Techno-Economic and Environmental Assessment of an Intercooled-Recuperated (ICR) Marine Gas Turbine for powering a LNG Carrier

An ICR aero-derivative marine gas turbine has been modelled alongside its simple cycle counterpar... more An ICR aero-derivative marine gas turbine has been modelled alongside its simple cycle counterpart and each of them has been simulated separately to operate as the main propulsion prime mover of a Liquefied Natural Gas Carrier. The vessel is programmed to undertake a commercial voyage in a virtual integrated marine environment similar to the expected prime mover's actual operating conditions in the open Sea. Using actual meteorological data for the selected maritime trade route between Algiers and Portsmouth, the impact of prevailing climatic changes plus the variation of sea states and degradation of the submerged ship hull surface on the engine power output and speed of the vessel have been investigated. This research attempts to predict the total quantity of fuel burned during the voyage and suggests that the boil off gas of the ship's cargo may be used along with the liquid fuel as a dual-fuel system for powering the installation. A comparative analysis of the performance of the two different thermodynamic cycles demonstrates the economic benefits of the ICR cycle over the simple cycle while revealing the viability of the marine gas turbine as an alternative to the conventional steam turbine that has since dominated the LNG Carrier propulsion industry due to its ability to convert the boil off gas for powering the vessel with a very high economic potential.