2012 IEEE International Conference on Control System, Computing and Engineering, 2012
ABSTRACT The internal combustion engines that are widely used as power sources nowadays emits haz... more ABSTRACT The internal combustion engines that are widely used as power sources nowadays emits hazardous emissions that can cause negative consequences on the environment and society such as pollution and climate change. Transportation industries are starting to rely on the renewable energy as the alternative energy sources for the future. Fuel cells are a promising alternative power source for vehicles because of their high specific energy, efficiency, and reliability. Hydrogen proton exchange membrane (PEM) fuel cells produce zero carbon emissions. The electrochemical processes that generate power exhaust only water vapor and heat. Fuel cell research for aircraft is relatively new. Therefore, there is a need for a thorough study on the development of the fuel cell powered aircraft. A five meter wingspan unmanned aerial vehicle technology demonstrator, called Kenyalang-1, was recently developed at Universiti Teknologi MARA. A Horizon H-1000 PEM fuel with a maximum power of 1 kW was used as the primary power plant for its DC brushless motor propulsion system. The system was tested in ground-based static tests. The objective of the research that is reported in this paper is to obtain the performance characteristic of the fuel cell propulsion system. The data collected from these tests includes the output voltage, output current, power, thrust, and rotational speed of the system. Results and analysis of this data were used to characterize the effectiveness of the fuel cell propulsion system. The results obtained indicate that the thrust of the propeller is directly proportional to output power generated by the fuel cell.
This paper presents the ballistic impact study for the non-filled aluminum tank. The objective wa... more This paper presents the ballistic impact study for the non-filled aluminum tank. The objective was to determine the ballistic limit for front tank wall and rear tank wall. The tank was impacted with fragment simulating projectile (FSP) with various velocities range from 239 m/s up to 556 m/s. The aluminum tank was 3 mm thick, 150 mm wide and 750 mm long. The ends of tank were closed with two Polymethyl methacrylate (PMMA) windows which fixed to the tank with four steel bars. The test was conducted at the Science and Technology Research Institute for Defense (STRIDE) Batu Arang, Selangor. The results showed that the ballistic limit for the front tank wall and rear tank wall was 257.7 m/s and 481 m/s, respectively.
2012 IEEE International Conference on Control System, Computing and Engineering, 2012
ABSTRACT The internal combustion engines that are widely used as power sources nowadays emits haz... more ABSTRACT The internal combustion engines that are widely used as power sources nowadays emits hazardous emissions that can cause negative consequences on the environment and society such as pollution and climate change. Transportation industries are starting to rely on the renewable energy as the alternative energy sources for the future. Fuel cells are a promising alternative power source for vehicles because of their high specific energy, efficiency, and reliability. Hydrogen proton exchange membrane (PEM) fuel cells produce zero carbon emissions. The electrochemical processes that generate power exhaust only water vapor and heat. Fuel cell research for aircraft is relatively new. Therefore, there is a need for a thorough study on the development of the fuel cell powered aircraft. A five meter wingspan unmanned aerial vehicle technology demonstrator, called Kenyalang-1, was recently developed at Universiti Teknologi MARA. A Horizon H-1000 PEM fuel with a maximum power of 1 kW was used as the primary power plant for its DC brushless motor propulsion system. The system was tested in ground-based static tests. The objective of the research that is reported in this paper is to obtain the performance characteristic of the fuel cell propulsion system. The data collected from these tests includes the output voltage, output current, power, thrust, and rotational speed of the system. Results and analysis of this data were used to characterize the effectiveness of the fuel cell propulsion system. The results obtained indicate that the thrust of the propeller is directly proportional to output power generated by the fuel cell.
ABSTRACT This paper presents the footage from a hi-speed camera used in the experiment on both ca... more ABSTRACT This paper presents the footage from a hi-speed camera used in the experiment on both cases of a non-filled and water-filled aluminium tank. The objective was to determine the failure stages that will be used as a reference in the simulation works later on. The tank was impacted by fragment simulating projectiles (FSP) at 260 m/s for the non-filled tank and 972 m/s for the water-filled tank. The aluminium tank was 3 mm thick, 150 mm wide and 750 mm long. The ends of the tank were closed with two Polymethyl methacrylate (PMMA) windows. The gas gun was used to launch the projectile and a digital chronograph was used to capture the velocity of the FSP that impacted the tank. For recording purposes, a digital high speed camera with the capability of 250,000 frames per second (max) and the highest resolution of 1024 x 1024 was used. For the data acquisition and processing, Photron Fastcam Viewer (PFV) software was used. The test was conducted at the Science and Technology Research Institute for Defence (STRIDE), Batu Arang, Selangor, Malaysia. The results showed four main failure stages for the non-filled tank, these being, first contact between FSP and the tank, partial perforation, full perforation with FSP and plug still intact and lastly separation of FSP and plug. Meanwhile for the water-filled tank, there were seven main failure stages, which were first contact between FSP and the tank, partial perforation, full perforation, drag phase, cavity phase, bounce wave event and the collapse of the cavity. Keywords: fragment simulating projectile, high speed camera, tensile test, terminal ballistic.
2011 IEEE Symposium on Industrial Electronics and Applications, 2011
This paper presents an application of the Radial Basis Function Neural Network (RBFNN)-based iden... more This paper presents an application of the Radial Basis Function Neural Network (RBFNN)-based identification of an essential oil extraction using Non-Linear Autoregressive Model with Exogenous Inputs (NARX) model. The dataset consisted of a Pseudo-Random Binary Sequence (PRBS) inputs as the control signal, and outputs depicting temperatures inside the distillation column. One Step Ahead (OSA) model fitting and residual tests demonstrated that the RBFNN-based NARX model was able to approximate the system well, while satisfying all validation criterias.
ABSTRACT This paper presents the ballistic impact study for the non-filled aluminum tank. The obj... more ABSTRACT This paper presents the ballistic impact study for the non-filled aluminum tank. The objective was to determine the ballistic limit for front tank wall and rear tank wall. The tank was impacted with fragment simulating projectile (FSP) with various velocities range from 239 m/s up to 556 m/s. The aluminum tank was 3 mm thick, 150 mm wide and 750 mm long. The ends of tank were closed with two Polymethyl methacrylate (PMMA) windows which fixed to the tank with four steel bars. The test was conducted at the Science and Technology Research Institute for Defense (STRIDE) Batu Arang, Selangor. The results showed that the ballistic limit for the front tank wall and rear tank wall was 257.7 m/s and 481 m/s, respectively.
2012 IEEE International Conference on Control System, Computing and Engineering, 2012
ABSTRACT The internal combustion engines that are widely used as power sources nowadays emits haz... more ABSTRACT The internal combustion engines that are widely used as power sources nowadays emits hazardous emissions that can cause negative consequences on the environment and society such as pollution and climate change. Transportation industries are starting to rely on the renewable energy as the alternative energy sources for the future. Fuel cells are a promising alternative power source for vehicles because of their high specific energy, efficiency, and reliability. Hydrogen proton exchange membrane (PEM) fuel cells produce zero carbon emissions. The electrochemical processes that generate power exhaust only water vapor and heat. Fuel cell research for aircraft is relatively new. Therefore, there is a need for a thorough study on the development of the fuel cell powered aircraft. A five meter wingspan unmanned aerial vehicle technology demonstrator, called Kenyalang-1, was recently developed at Universiti Teknologi MARA. A Horizon H-1000 PEM fuel with a maximum power of 1 kW was used as the primary power plant for its DC brushless motor propulsion system. The system was tested in ground-based static tests. The objective of the research that is reported in this paper is to obtain the performance characteristic of the fuel cell propulsion system. The data collected from these tests includes the output voltage, output current, power, thrust, and rotational speed of the system. Results and analysis of this data were used to characterize the effectiveness of the fuel cell propulsion system. The results obtained indicate that the thrust of the propeller is directly proportional to output power generated by the fuel cell.
This paper presents the ballistic impact study for the non-filled aluminum tank. The objective wa... more This paper presents the ballistic impact study for the non-filled aluminum tank. The objective was to determine the ballistic limit for front tank wall and rear tank wall. The tank was impacted with fragment simulating projectile (FSP) with various velocities range from 239 m/s up to 556 m/s. The aluminum tank was 3 mm thick, 150 mm wide and 750 mm long. The ends of tank were closed with two Polymethyl methacrylate (PMMA) windows which fixed to the tank with four steel bars. The test was conducted at the Science and Technology Research Institute for Defense (STRIDE) Batu Arang, Selangor. The results showed that the ballistic limit for the front tank wall and rear tank wall was 257.7 m/s and 481 m/s, respectively.
2012 IEEE International Conference on Control System, Computing and Engineering, 2012
ABSTRACT The internal combustion engines that are widely used as power sources nowadays emits haz... more ABSTRACT The internal combustion engines that are widely used as power sources nowadays emits hazardous emissions that can cause negative consequences on the environment and society such as pollution and climate change. Transportation industries are starting to rely on the renewable energy as the alternative energy sources for the future. Fuel cells are a promising alternative power source for vehicles because of their high specific energy, efficiency, and reliability. Hydrogen proton exchange membrane (PEM) fuel cells produce zero carbon emissions. The electrochemical processes that generate power exhaust only water vapor and heat. Fuel cell research for aircraft is relatively new. Therefore, there is a need for a thorough study on the development of the fuel cell powered aircraft. A five meter wingspan unmanned aerial vehicle technology demonstrator, called Kenyalang-1, was recently developed at Universiti Teknologi MARA. A Horizon H-1000 PEM fuel with a maximum power of 1 kW was used as the primary power plant for its DC brushless motor propulsion system. The system was tested in ground-based static tests. The objective of the research that is reported in this paper is to obtain the performance characteristic of the fuel cell propulsion system. The data collected from these tests includes the output voltage, output current, power, thrust, and rotational speed of the system. Results and analysis of this data were used to characterize the effectiveness of the fuel cell propulsion system. The results obtained indicate that the thrust of the propeller is directly proportional to output power generated by the fuel cell.
ABSTRACT This paper presents the footage from a hi-speed camera used in the experiment on both ca... more ABSTRACT This paper presents the footage from a hi-speed camera used in the experiment on both cases of a non-filled and water-filled aluminium tank. The objective was to determine the failure stages that will be used as a reference in the simulation works later on. The tank was impacted by fragment simulating projectiles (FSP) at 260 m/s for the non-filled tank and 972 m/s for the water-filled tank. The aluminium tank was 3 mm thick, 150 mm wide and 750 mm long. The ends of the tank were closed with two Polymethyl methacrylate (PMMA) windows. The gas gun was used to launch the projectile and a digital chronograph was used to capture the velocity of the FSP that impacted the tank. For recording purposes, a digital high speed camera with the capability of 250,000 frames per second (max) and the highest resolution of 1024 x 1024 was used. For the data acquisition and processing, Photron Fastcam Viewer (PFV) software was used. The test was conducted at the Science and Technology Research Institute for Defence (STRIDE), Batu Arang, Selangor, Malaysia. The results showed four main failure stages for the non-filled tank, these being, first contact between FSP and the tank, partial perforation, full perforation with FSP and plug still intact and lastly separation of FSP and plug. Meanwhile for the water-filled tank, there were seven main failure stages, which were first contact between FSP and the tank, partial perforation, full perforation, drag phase, cavity phase, bounce wave event and the collapse of the cavity. Keywords: fragment simulating projectile, high speed camera, tensile test, terminal ballistic.
2011 IEEE Symposium on Industrial Electronics and Applications, 2011
This paper presents an application of the Radial Basis Function Neural Network (RBFNN)-based iden... more This paper presents an application of the Radial Basis Function Neural Network (RBFNN)-based identification of an essential oil extraction using Non-Linear Autoregressive Model with Exogenous Inputs (NARX) model. The dataset consisted of a Pseudo-Random Binary Sequence (PRBS) inputs as the control signal, and outputs depicting temperatures inside the distillation column. One Step Ahead (OSA) model fitting and residual tests demonstrated that the RBFNN-based NARX model was able to approximate the system well, while satisfying all validation criterias.
ABSTRACT This paper presents the ballistic impact study for the non-filled aluminum tank. The obj... more ABSTRACT This paper presents the ballistic impact study for the non-filled aluminum tank. The objective was to determine the ballistic limit for front tank wall and rear tank wall. The tank was impacted with fragment simulating projectile (FSP) with various velocities range from 239 m/s up to 556 m/s. The aluminum tank was 3 mm thick, 150 mm wide and 750 mm long. The ends of tank were closed with two Polymethyl methacrylate (PMMA) windows which fixed to the tank with four steel bars. The test was conducted at the Science and Technology Research Institute for Defense (STRIDE) Batu Arang, Selangor. The results showed that the ballistic limit for the front tank wall and rear tank wall was 257.7 m/s and 481 m/s, respectively.
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