Ph.D. Student Department of Mechanical Engineering University of Texas at San Antonio Texas, USA Supervisors: Dr. Yusheng Feng Address: San Antonio, Texas, USA
The thermal performance of parallel miniature heat pipe system (mHPS) intended for desktop comput... more The thermal performance of parallel miniature heat pipe system (mHPS) intended for desktop computer processor cooling is experimentally analyzed and presented here n this paper. The system consists of six single copper tube mHPs slotted into two copper blocks at the evaporator section and fifteen parallel copper sheets at the condenser section. Stainless steel wicks are inserted inside the copper tubes, while ethanol, acetone, methanol and propanol-2 serve independently as working fluids. Heat transfer characteristics of the mHPS is determined by conducting the experiment at various levels of heat inputs and analyzed to evaluate the performance. The thermal resistance and thermal conductance of the system are determined as performance parameters. The results show that, the behavior of the heat pipe varies significantly for different heat inputs and different working fluids.
This paper introduces and describes a mechanism for manufacturing robotic arm like human arm and ... more This paper introduces and describes a mechanism for manufacturing robotic arm like human arm and its control method. At first a mechanical design of this robot that is inspired by a demonstration of the exact dimensions of its fingers is presented here. Especially, we assume a virtual steering system for the motion of fingers to grasp and retain its normal state. Secondly an explanation of the mechanism of its proper functioning based on slider, spring and string combination that enables the joints of the finger to move and lock in desired position is described. Of course, it is also possible for the joints to unlock themselves by a reverse mechanism. The detailed design and properties of the robotic arm are described in this paper. Keywords: Robotic arm, Human arm, Finger, Grasp.
Thermal performance of parallel miniature heat pipe system
The experimental analysis presented here is based on the heat transfer performance of parallel mi... more The experimental analysis presented here is based on the heat transfer performance of parallel miniature heat pipe (mHP) system intended for desktop computer processor cooling. The system consists of six single copper tube mHPs slotted into two copper blocks at the evaporator section and fifteen parallel copper sheets at the condenser section. Stainless steel wicks are inserted inside the copper tubes, while methanol and iso-propanol serves solely as working fluids. Heat transfer characteristics of mHPs are determined by conducting the experiment at various levels of heat inputs and analyzed to evaluate the performance. The overall heat transfer coefficient of the system is determined as a performance parameter. The results show that, the behavior of the heat pipe varies significantly for different heat inputs and different working fluids.
Experimental Analysis of Parallel Miniature Heat Pipe System
"An experimental analysis of the heat transfer
performance of parallel miniature heat pipe (mHP)... more "An experimental analysis of the heat transfer
performance of parallel miniature heat pipe (mHP) system
modeled for cooling desktop computer processor is presented
here. The structure consists of six single copper tube mHPs. The
tubes are placed into a copper block at the evaporator section
and fifteen parallel copper sheets are used as external fins at the
condenser section. Stainless steel wicks are inserted inside the
copper tubes, while ethanol and acetone serves independently as
working fluids. Heat transfer characteristics of mHPs are
determined experimentally, based on the principle of phase
change of the working fluid. The experiment is conducted at
various levels of heat inputs and analyzed to compare the
performance. The overall heat transfer coefficient of the system is
determined to show the heat removing capability of the mHPs.
The results show that, the performance of the heat pipe varies
substantially for different heat inputs and different working
fluids."
The thermal performance of parallel miniature heat pipe system (mHPS) intended for desktop comput... more The thermal performance of parallel miniature heat pipe system (mHPS) intended for desktop computer processor cooling is experimentally analyzed and presented here n this paper. The system consists of six single copper tube mHPs slotted into two copper blocks at the evaporator section and fifteen parallel copper sheets at the condenser section. Stainless steel wicks are inserted inside the copper tubes, while ethanol, acetone, methanol and propanol-2 serve independently as working fluids. Heat transfer characteristics of the mHPS is determined by conducting the experiment at various levels of heat inputs and analyzed to evaluate the performance. The thermal resistance and thermal conductance of the system are determined as performance parameters. The results show that, the behavior of the heat pipe varies significantly for different heat inputs and different working fluids.
This paper introduces and describes a mechanism for manufacturing robotic arm like human arm and ... more This paper introduces and describes a mechanism for manufacturing robotic arm like human arm and its control method. At first a mechanical design of this robot that is inspired by a demonstration of the exact dimensions of its fingers is presented here. Especially, we assume a virtual steering system for the motion of fingers to grasp and retain its normal state. Secondly an explanation of the mechanism of its proper functioning based on slider, spring and string combination that enables the joints of the finger to move and lock in desired position is described. Of course, it is also possible for the joints to unlock themselves by a reverse mechanism. The detailed design and properties of the robotic arm are described in this paper. Keywords: Robotic arm, Human arm, Finger, Grasp.
Thermal performance of parallel miniature heat pipe system
The experimental analysis presented here is based on the heat transfer performance of parallel mi... more The experimental analysis presented here is based on the heat transfer performance of parallel miniature heat pipe (mHP) system intended for desktop computer processor cooling. The system consists of six single copper tube mHPs slotted into two copper blocks at the evaporator section and fifteen parallel copper sheets at the condenser section. Stainless steel wicks are inserted inside the copper tubes, while methanol and iso-propanol serves solely as working fluids. Heat transfer characteristics of mHPs are determined by conducting the experiment at various levels of heat inputs and analyzed to evaluate the performance. The overall heat transfer coefficient of the system is determined as a performance parameter. The results show that, the behavior of the heat pipe varies significantly for different heat inputs and different working fluids.
Experimental Analysis of Parallel Miniature Heat Pipe System
"An experimental analysis of the heat transfer
performance of parallel miniature heat pipe (mHP)... more "An experimental analysis of the heat transfer
performance of parallel miniature heat pipe (mHP) system
modeled for cooling desktop computer processor is presented
here. The structure consists of six single copper tube mHPs. The
tubes are placed into a copper block at the evaporator section
and fifteen parallel copper sheets are used as external fins at the
condenser section. Stainless steel wicks are inserted inside the
copper tubes, while ethanol and acetone serves independently as
working fluids. Heat transfer characteristics of mHPs are
determined experimentally, based on the principle of phase
change of the working fluid. The experiment is conducted at
various levels of heat inputs and analyzed to compare the
performance. The overall heat transfer coefficient of the system is
determined to show the heat removing capability of the mHPs.
The results show that, the performance of the heat pipe varies
substantially for different heat inputs and different working
fluids."
Uploads
Papers by Mohammad Mamunur Rahman
performance of parallel miniature heat pipe (mHP) system
modeled for cooling desktop computer processor is presented
here. The structure consists of six single copper tube mHPs. The
tubes are placed into a copper block at the evaporator section
and fifteen parallel copper sheets are used as external fins at the
condenser section. Stainless steel wicks are inserted inside the
copper tubes, while ethanol and acetone serves independently as
working fluids. Heat transfer characteristics of mHPs are
determined experimentally, based on the principle of phase
change of the working fluid. The experiment is conducted at
various levels of heat inputs and analyzed to compare the
performance. The overall heat transfer coefficient of the system is
determined to show the heat removing capability of the mHPs.
The results show that, the performance of the heat pipe varies
substantially for different heat inputs and different working
fluids."
performance of parallel miniature heat pipe (mHP) system
modeled for cooling desktop computer processor is presented
here. The structure consists of six single copper tube mHPs. The
tubes are placed into a copper block at the evaporator section
and fifteen parallel copper sheets are used as external fins at the
condenser section. Stainless steel wicks are inserted inside the
copper tubes, while ethanol and acetone serves independently as
working fluids. Heat transfer characteristics of mHPs are
determined experimentally, based on the principle of phase
change of the working fluid. The experiment is conducted at
various levels of heat inputs and analyzed to compare the
performance. The overall heat transfer coefficient of the system is
determined to show the heat removing capability of the mHPs.
The results show that, the performance of the heat pipe varies
substantially for different heat inputs and different working
fluids."