초록 ▼

A thermodynamic closed cycle power and cryogenic refrigeration apparatus which simultaneously produces power and refrigeration. A mixture of a non-condensable first gas such as helium or hydrogen that is in state far from its saturation point and a condensable second gas such as nitrogen or ammonia

A thermodynamic closed cycle power and cryogenic refrigeration apparatus which simultaneously produces power and refrigeration. A mixture of a non-condensable first gas such as helium or hydrogen that is in state far from its saturation point and a condensable second gas such as nitrogen or ammonia that is capable of condensing during a working process but non-freezable is isothermally compressed in a sliding-blade gas/liquid compressor then the liquid content that absorbed adiabatic heat during compression of the gas/liquid mixture is separated from the mixture in a vortex separator. The cool non-condensable first gas is supplied to a heat exchanger and isobarically heated using heat of the ambient air or other low-temperature heat source to produce cool refrigerated air. The heated and compressed first gas enters a sliding-blade gas expander and adiabatic expanded and cooled while performing useful work by causing simultaneous rotation of the gas/liquid compressor rotor and gas expander rotor. The adiabatically expanded cool first gas enters a vortex ejector/mixer and is mixed with the separated liquified second gas to serve as a coolant and facilitate rejection of adiabatic heat and supplement the cool gas/liquid mixture which is being fed to the gas/liquid compressor and isothermally compressed to complete the cycle.

대표청구항 ▼

[ We claim:] [1.] A method for transforming thermal energy into mechanical energy while simultaneously producing refrigerated air utilizing a mixture of a non-condensable first gas and a condensable second gas as a working fluid, comprising the steps of:introducing a gas/liquid mixture of a non-cond

[ We claim:] [1.] A method for transforming thermal energy into mechanical energy while simultaneously producing refrigerated air utilizing a mixture of a non-condensable first gas and a condensable second gas as a working fluid, comprising the steps of:introducing a gas/liquid mixture of a non-condensable first gas and a condensable second gas into a rotary gas/liquid compressor having a rotor and isothermally compressing it therein;separating said isothermally compressed gas/liquid mixture into a non-condensable first gas component having a low boiling temperature and a liquified second gas component;isobarically heating said separated non-condensable first gas component in a heat exchanger having ambient air passing therethrough to cool said ambient air and produce cool refrigerated air therefrom;discharging said isobarically heated first gas component as a working fluid from said heat exchanger into a rotary gas expander having a rotor operatively connected with said rotary gas/liquid compressor rotor;adiabatically expanding said working fluid in said rotary gas expander to simultaneously rotate said gas expander rotor and said rotary gas/liquid compressor rotor and produce useful work and thereby extract heat from said adiabatically expanded working fluid to cool it to a temperature below the boiling temperature of said liquified second gas component;discharging a portion of said expanded cooled working fluid from said gas expander into a vortex ejector/mixer; andintroducing a portion of said separated liquified second gas component into said vortex ejector/mixer and mixing it with said expanded cool working fluid to serve as a coolant for said liquified second gas and to supplement said gas/liquid mixture that is introduced into said rotary gas/liquid compressor.