Heat source and heat sink pumping system and method

Details Heat source and heat sink pumping system and method Heat source and heat sink pumping system and method

1977-06-17

1979-12-18

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60671, 62 53, F01K 2510, F17C 702

Patent

active

041787617

ABSTRACT:
A pumping system deriving power from a heat source and heat sink, for producing either a liquid or gaseous output, utilizes the available thermal potential energy for conversion to work. A liquid, such as a cryogenic liquid is pumped to a first pressure and at least a portion of the output is pumped to a second and higher pressure. The liquid at the higher pressure flows through a heat exchanger to vaporize the liquid to a gas which drives a turbine for generating power to power the pumps or an electrical generator or both. The exhaust output of the turbine flows into the output of the first pump or stage. A recondensing heat exchanger may be used to recondense the turbine exhaust. The system may produce a liquid output or a gas output.

REFERENCES:
patent: 2657541 (1953-11-01), Schilling
patent: 2964917 (1960-12-01), Webster
patent: 3154928 (1964-11-01), Harmens

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