Polytropic expansion units

Disclosed is a polytropic expansion unit, composed of an internal heating expansion engine and a countercurrent heat exchanger, aiming to control the polytropic exponents in gas expansion process. The heating mode of the internal heating expansion engine is that heating medium heats the shell of the...

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Bibliographic Details
Main Author HONG GUOWEI
Format Patent
LanguageChinese
English
Published 18.02.2009
Subjects
BLASTING
COMBINED HEATING AND REFRIGERATION SYSTEMS
ENGINE PLANTS IN GENERAL
ENGINE PLANTS NOT OTHERWISE PROVIDED FOR
ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MACHINES OR ENGINES IN GENERAL
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
STEAM ACCUMULATORS
STEAM ENGINE PLANTS
STEAM ENGINES
WEAPONS
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Summary:Disclosed is a polytropic expansion unit, composed of an internal heating expansion engine and a countercurrent heat exchanger, aiming to control the polytropic exponents in gas expansion process. The heating mode of the internal heating expansion engine is that heating medium heats the shell of the expansion engine, thus indirectly heating the expansive gas. When the heat transfer temperature difference of the countercurrent heat exchanger is nearly zero, the temperatures during the expansion process are approximately the same, so the polytropic expansion unit is nearly a constant-temperature expansion unit.
Bibliography:Application Number: CN2008171674