Method of converting low-grade heat energy to useful mechanical

Details Method of converting low-grade heat energy to useful mechanical Method of converting low-grade heat energy to useful mechanical

1974-03-26

1976-04-20

Ostrager, Allen M.

Power plants

Utilizing natural heat

Geothermal

60676, F01K 1900, F01K 2500

Patent

active

039509494

ABSTRACT:
Specifically disclosed is a method of operating a vapor cycle engine wherein a vaporizable fluid is circulated in a closed loop serially through a first heat source, a second heat source, an expansion vapor engine, a condenser, and back to the first heat source. The method of operation specifically comprises the steps of heating the fluid in the first heat source to a relatively low temperature t, super-heating the fluid in the second heat source to a temperature T, passing the fluid through the expansion vapor engine and then exhausting the fluid from the engine at a temperature T.sub.2 which is greater than the temperature t. Also disclosed is apparatus for specifically accomplishing the method as disclosed.

REFERENCES:
patent: 1493368 (1924-05-01), Merz

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