METHOD FOR CONVERSION OF LOW-GRADE HEAT ENERGY Russian patent published in 2017 - IPC F25B30/06 F25B9/00 F04F7/02 

FIELD: system for heating and cooling.

SUBSTANCE: present invention relates to compression machines and systems in which air is the working fluid. Method for conversion of low-grade heat energy into high-potential heat energy includes a pneumatic energy generator required to create a closed air thermodynamic cycle, and low-potential heat source. Method includes the following: the pneumatic energy generator is activated by the mechanical energy of low-potential heat source; the generator is a hydraulic unit that transforms the water flow kinetic energy into the hydraulic shock potential energy with a subsequent mechanical work that involves the back-translational movement of the movable parts of walls of the hydraulic unit water conduit and air compression in the compression chambers that are arranged above the water conduit walls of the hydraulic unit that can move in the radial direction.

EFFECT: invention enables to convert practically free hydraulic energy of multiple and widely spread low-pressure natural and artificial water courses into the pneumatic power with a subsequent conversion thereof into the high-potential heat energy in a closed thermodynamic cycle, mechanical work of compressed air expansion in an expansion machine and the energy for generation of cold.

1 cl, 1 dwg