Novel diesel-fueled engine for microclimate cooling for the individual soldier. Final report Jul 91-Jan 92
Military mission performance in a chemically contaminated environment necessitates the wearing of chemically impermeable protective garments. Soldiers encapsulated in these protective garments in a hot environment will succumb to heat stress. Consequently a microclimate cooling system is being developed. In the present design, a vapor compression cycle chills water which is then circulated over the body to absorb heat via a cooling garment. One of the major components of the vapor compression cycle system is the prime mover, i.e. the engine. For battlefield use, the engine shall utilize battlefield fuel, JP-8. Commercially available engines of the required size, approximately 0.5 hp at 4000 rpm, such as model aircraft engines and small outdoor power equipment (string trimers) engines do not start and run on JP-8. This effort established the technical feasibility of starting and operating a small, lightweight engine on diesel fuel and JP-8. A commercially available 1.09 cubic inch displacement was used; however, the stock head was replaced with a custom designed head employing a fuel injector and pre-chamber. The engine started by hand cranking from ambient temperature (70 deg F) and ran without aids. 0.42 brake hp was developed at 3700 rpm. Brake specific fuel consumption was 0.76 lb/bbp-hr. microclimate cooling, diesel engines, individual soldier, protective clothing, diesel fuels , chemical contamination, heat stress(physiology), hot environment, chemical protection.
- Research Organization:
- TECOGEN, Inc., Waltham, MA (United States)
- OSTI ID:
- 7009372
- Report Number(s):
- AD-A-254510/1/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
CHEMICAL WARFARE
PROTECTIVE CLOTHING
DESIGN
BRAKES
CHEMICAL WARFARE AGENTS
COMPRESSION
CONTAMINATION
COOLING
COOLING SYSTEMS
DIESEL ENGINES
DIESEL FUELS
ENGINES
ENVIRONMENT
FUEL CONSUMPTION
FUELS
HANDS
HEAT
MILITARY PERSONNEL
PHYSIOLOGY
POWER
VAPORS
WATER
ANIMALS
BODY
BODY AREAS
CLOTHING
DISTILLATES
ENERGY
ENERGY CONSUMPTION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
GAS OILS
GASES
HEAT ENGINES
HYDROGEN COMPOUNDS
INTERNAL COMBUSTION ENGINES
LIMBS
LIQUID FUELS
MACHINE PARTS
MAMMALS
MAN
OXYGEN COMPOUNDS
PERSONNEL
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PRIMATES
VERTEBRATES
WARFARE
WEAPONS
450600* - Military Technology
Weaponry
& National Defense- Chemical & Biological- (1990)
420202 - Engineering- Protective Structures & Equipment