METHOD FOR OPERATION OF THERMOCOMPRESSOR AND THERMOCOMPRESSOR FOR ITS REALIZATION Russian patent published in 2002 - IPC

FIELD: process of conversion of thermal power, applicable in development and manufacture of thermocompressors, refrigerating machines and thermal converters. SUBSTANCE: the method consists in heating of the working medium by absorption of heat from the cooled medium, subsequent compression with a rise of temperature in the adjacent vessel, heat abstraction and pushing through of the working medium from the adjacent vessel. The claimed method is featured by the fact that the temperature range of the cooled medium is determined, used as the working medium is a medium, whose critical temperature exceeds minimum temperature T_min, but is lower than maximum temperature T_max of the cooled medium temperature range, subjected to nonadiabatic compression is the working medium in the state corresponding to the moment of collapse of the phase boundary, to a density exceeding the critical density at least by two times, before compression the working medium is brought to one of the states with parameters satisfying the following conditions: T_min≤T≤T_cr at any T_cool.med of the preliminarily determined temperature range, P_min≤P≤P_cr V_cr≤V≤V_max, where T,P,V - temperature, pressure and volume of the working medium, T_cr,P_cr,V_cr - temperature, pressure and volume of the working medium in the critical point, T_cool.med - temperature of the cooled medium, P_min - pressure corresponding to the section of constant pressure on the isothermic line with temperature T_min, V_max - maximum volume of the working medium on the process boundary, in which P=const and T=const simultaneously at P = P_min and T = T_min, after that before compression the volume of the working medium is increased up to the moment of collapse of the phase boundary at P=const and T=const, before pushing through of the working medium the pressure in the compressing device is equalizer with the pressure in the rest section of the thermocompressor, and pushing through is accomplished at this pressure. The thermocompressor has a compressing device with a piston and cylinder, adjacent vessel, heat exchangers and working medium. The claimed thermocompressor is featured by the fact that it also has a circulating pump connected to the heat exchanger of the cooled medium, adjacent vessel and the cylinder of the compressing device to a closed circuit of a variable volume, the maximum volume of the circuit equals the volume allowing the working medium assume a state corresponding to the collapse of the phase boundary at T = T_min. EFFECT: maximized values of the heat transfer coefficient at the current temperature of the cooled medium in case heat sources with a variable temperature within a wide temperature range are used. 2 cl, 1 dwg