Passive Gas Regulated Heat Pipe System for Fuel Cell System Thermal Management
Navy SBIR FY2005.1


Sol No.: Navy SBIR FY2005.1
Topic No.: N05-041
Topic Title: Passive Gas Regulated Heat Pipe System for Fuel Cell System Thermal Management
Proposal No.: N051-041-1152
Firm: Energent Corporation
2321 S. Pullman St.
Santa Ana, California 92705-5512
Contact: Lance Hays
Phone: (949) 261-7533
Web Site: energent .net
Abstract: A gas reservoir regulated heat pipe system is proposed to provide passive temperature regulation of a reformer and fuel cell system. This system has been successfully applied to passively regulate temperatures of an air cooled two-stroke engine to within 10 deg C over the operating range from idle to full power and for a vehicle velocity ranging from 0-50 mph. The heat pipe system will involve multiple reservoirs at differing pressures to control different sections of the reformer and fuel cell system at optimal temperatures. Further the system will incorporate a circuit for the transfer of waste heat from the fuel cell products to the reformer feedstock and/or a waste heat power generation system.
Benefits: Successful deployment of the gas regulated heat pipe system proposed will result in commercial opportunities for reformers for commercial fuel cell applications and for coal gasification. The results will re-inforce results previously demonstrated for engine thermal management fuel economy improvement to open applications to stationary and mobile internal combustion engines - a 27% fuel economy improvement was previously demonstrated for a two-stroke engine resulting from greater uniformity and control of cylinder temperatures.

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