Papers by Kirti Zare
Energy Procedia, 2017
In the present study, the effect of the biosurfactant Surfactin on methane hydrate formation kine... more In the present study, the effect of the biosurfactant Surfactin on methane hydrate formation kinetics was studied. Initially, several marine derived species were screened for the presence of Surfactin. The polymerase chain reaction technique was used as the preliminary screening step for Surfactin which was then followed up by a couple of different assays to provide conclusive evidence of the same. Based on these tests, the D-9 bacterial strain was identified as a producer of Surfactin. Once the presence of Surfactin had been proven, its effect on methane hydrate formation kinetics was investigated upon by carrying out hydrate formation experiments in a stirred tank reactor. The cell free supernatant containing Surfactin was itself used as the hydrate forming solution without any further processing. It was found that the presence of Surfactin in the system greatly enhances hydrate formation kinetics as compared to pure water. In fact the kinetics in presence of Surfactin also surpassed that obtained with 1 wt% SDS, the most commonly used synthetic kinetic hydrate promoter. This basic study can pave the way for more sophisticated research on the use of biosurfactants as kinetic promoters with a view on rapid methane hydrate formation kinetics for applications such as methane separation, storage and transport.
European Chemical Bulletin, 2023
This study was undertaken to analysis of thermal features of paraffin wax as Phase Change Materia... more This study was undertaken to analysis of thermal features of paraffin wax as Phase Change Material & studied under different solar intensity to store latent heat energy. Methods: Experimentally investigation was carried out in box type solar Still with Paraffin wax. Paraffin wax analysed through solidification and melting characteristics curve for thermal performances. Finding: Examined the solidification and melting curve of paraffin wax box type solar Still for storage of energy in latent form. The usage of phase change materials (PCMs) has been shown to develop the thermal enactment of solar storage. Novelty: Paraffin wax is a type of phase change material (PCM) that has been used in various uses, mainly deals with storage of latent form of thermal systems. The novelty of using paraffin wax as a PCM in a solar Still application is its ability to store thermal energy effectively and release it slowly when needed, making it an ideal candidate for use in a solar Still. In future research, the development of Nano-Enhanced phase change materials (NEPCMs) could further enhance the thermophysical properties of PCMs, making them an even more promising solution for meeting energy requirements through renewable bases like solar energy. The utilization of renewable energy sources through a green approach can have a favourable effect on the environment. By using Phase Change Materials (PCMs) with solar energy systems, there is a possibility to considerably decrease energy consumption and greenhouse gas emissions, which can contribute to a sustainable and cleaner future.
European Chemical Bulletin, 2023
To explore different types of Nanoparticles in based paraffin wax as Phase Change Materials (PCM)... more To explore different types of Nanoparticles in based paraffin wax as Phase Change Materials (PCM) and analyzed their thermal characteristics and stability for store energy in solar thermal systems. The main focus is on solar systems using the thermal energy storage and system to get a low economic analysis as high efficiency
This work presents the kinetic modelling and simulation of saponification of ethyl acetate in the... more This work presents the kinetic modelling and simulation of saponification of ethyl acetate in the presence of Sodium hydroxide in a plug flow reactor, Continues stirred tank reactor using Aspen Plus simulation Software. The continuous flow stirred-tank reactor (CSTR), also known as vator back mix reactor, is a common ideal reactor type in chemical engineering. A CSTR often refers to a model used to estimate the key unit operation variables when using a continuous agitated-tank reactor to reach a specified output. Plug flow reactors are widely used in the industry due to the non-mixing property. The use of plug flow reactors becomes significant when there is a need for continuous large scale reaction or fast reaction. Plug flow reactors have a high volumetric unit conversion as the occurrence for side reactions is minimum.
research journal of engineering sciences, 2017
The present work is aimed at synthesis of efficient adsorbent from coconut shell and ... more The present work is aimed at synthesis of efficient adsorbent from coconut shell and comparison with commercial grade
activated charcoal (CGAC).The raw material
This work presents the kinetic modelling and simulation of saponification of ethyl acetate in the... more This work presents the kinetic modelling and simulation of saponification of ethyl acetate in the presence of Sodium hydroxide in a plug flow reactor, Continues stirred tank reactor using Aspen Plus simulation Software. The continuous flow stirred-tank reactor (CSTR), also known as vat-or back mix reactor, is a common ideal reactor type in chemical engineering. A CSTR often refers to a model used to estimate the key unit operation variables when using a continuous agitated-tank reactor to reach a specified output. Plug flow reactors are widely used in the industry due to the non-mixing property. The use of plug flow reactors becomes significant when there is a need for continuous large scale reaction or fast reaction. Plug flow reactors have a high volumetric unit conversion as the occurrence for side reactions is minimum.
The term cryogenics is used to describe methods of refrigeration at very low temperatures (typica... more The term cryogenics is used to describe methods of refrigeration at very low temperatures (typically below 125 K), and distinguish them from ordinary refrigeration cycles. Many of these methods relate to the liquefaction of gases known as permanent, like air, natural gas, hydrogen or helium. Cryogenic liquid is used to directly or indirectly cool solid or liquid contaminants adhering to apparatus surfaces to effect a change in the physical characteristics of the contaminants and thereby render them more susceptible to removal operations. The challenges facing machining industries today are high metal removal rate and better product quality. Grinding is vital to many Manufacturing processes as it generates finer surfaces and closer dimensional tolerances. Cryogenics or deep freezing have been around for quite some time. There is documented research from as far back as the 1930's where German companies used it on components of jumbo aircraft engines. The austenite is unstable at this temperature and the whole structure become martensitic. This is the region to use cryogenic treatment. Processing is not a substitute for heat treating if the product is properly treated or if the product is over heated during remanufacturing or if it is over stressed during use. Cryogenic processing will not in itself harden metal like quenching and tempering, it is an additional treatment to heat-treating.
Heat exchanger is one of the important devices in cooling and heating process in Factories, build... more Heat exchanger is one of the important devices in cooling and heating process in Factories, buildings, transports and others. The heat exchanger is found in large Construction to support cooling process such as fossil fuel power plant. In the present study, heat transfer from hot water to cold water by double pipe heat exchanger consists concentric tube is experimentally investigated. The horizontal double pipe heat exchanger is made from Galvanised iron tube with inner tube and outer tube. The inner tube is consists of 26mm internal & 34 mm outer diameter. The outer tube is consisting of 68 mm internal & 76 mm outer diameter. A set of the experiments were carried out to investigate for counter flow & parallel flow to determine heat transfer coefficient in a double pipe heat exchanger.
Lubricating oils are viscous liquids used for lubricating moving part of engines and machines. Lu... more Lubricating oils are viscous liquids used for lubricating moving part of engines and machines. Lubricating oils are obtained from petroleum a finite product and with dwindling production from world oil reserves, is essential to recognize that all used oils should be collected for controlled disposals. Some products such as transformer oils and hydraulic oils, can be readily collected from large industrial concerns, regenerated to a recognized standard and returned to original source. Oil from automotive sources will include mono and multi-grade crankcase oils from petrol and diesel engines, together with industrial lubricants that have been inadequately segregated may also be included. Lubrication oil is used to provide a film between the moving parts of machines and engines to prevent wear with little or no loss of power.
Water is one of the basic needs of living beings. Generally water is available on the earth in th... more Water is one of the basic needs of living beings. Generally water is available on the earth in the form of salt water and fresh water. Fresh water available is in the form of frozen and unfrozen state. Unfrozen fresh water is found mainly as groundwater and surface water which only can be directly used. As the human population increases, water demand increases and the water scarcity problem arises. There are many remedial measures on the water scarcity which can be applied on each scale. The measures such as recycling of treated wastewater, conservation through minimizing water consumption and rainwater harvesting will help to reduce load on water demand.
Progressive freeze-concentration (PFC) is a method, in which a single ice crystal is formed in th... more Progressive freeze-concentration (PFC) is a method, in which a single ice crystal is formed in the system to remove water from a solution. In this method, the system is much simpler as compared with the conventional method of suspension crystallization, in which many small ice crystals are formed. A small cylindrical test system for PFC was successfully applied for the high quality concentration of fruits flavour solution with high yields of flavour components. Progressive freeze concentration (PFC) has emerged as a viable technology for concentration of liquid solution. In this study, a newly designed spiral finned crystallizer to improve productivity of progressive freeze-concentration process is proposed. The spiral finned crystallizer has high potential to be integrated in a PFC system as an effective system to concentrate a solution and to produce pure ice crystal. This proposed system can also offer an attractive alternative for the food industry as it involves no heating and has high potential in producing highly concentrated solution.
The esterification reactions of calcium lactate with methanol and carbon dioxide have been studie... more The esterification reactions of calcium lactate with methanol and carbon dioxide have been studied in the present article. Additions of a co-solvent, supercritical carbon dioxide (critical point at 31 0 C and 73 bar) for obtain high conversion of methyl lactate at mild temperature, pressure conditions. A detailed study on the esterification of calcium lactate using methanol and carbon dioxide was carried out to record the effects of various operating parameters (like CO 2 pressure, reaction temperature, reaction time) on the esterification reaction. In the overall reaction calcium lactate reacted with methanol and carbon dioxide for formation of methyl lactate esters and calcium carbonate as by-product. Thus, the recovery and recycle of alkali metal is possible providing a pollution free process for formation of methyl lactate.
Conference Presentations by Kirti Zare
Purpose The purpose of this section is to present information developed during preliminary design... more Purpose The purpose of this section is to present information developed during preliminary design of the demonstration project. It describes the issues and possible design solutions for a passenger's safety in the trains, development which is the proposed site of the demonstration. The present invention comprises of electronically driven Retractable steps and Pads. Methods The research methodology will cover as follow 1) Identification of design points on trains and platforms. 2) Design of Space Fillers for Platforms. 3) Modelling of Space Fillers. 4) Fabrication of Space Fillers. 5) Testing of Space Fillers. The approach will be Design, Modelling, Fabrication and Testing of Retractable Steps and Pads. Results 1) Cheaper installation and maintenance 2) No major platform modification required. 3) Can be Improve the quality of Indian Train and platforms to achieve the goal of Zero Accident 4) Passenger's may Experience the Safest Journey by Train 5) Can save the Life, Time and Money by avoiding major or minor injuries due to gap between Train and Platform. Conclusion Passenger's Safety is a prime responsibility of an Indian Railway and this can be justify by providing best service to passenger's to dealt with this statement, Design and Installation of Space Fillers may approach towards zero accident due to gap between Train and Platforms. Peoples can get Up and Down without anyone's Support.
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Papers by Kirti Zare
activated charcoal (CGAC).The raw material
Conference Presentations by Kirti Zare
activated charcoal (CGAC).The raw material