Method for recovering waste heat as motive power

Details Method for recovering waste heat as motive power Method for recovering waste heat as motive power

1981-04-29

1983-07-19

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60670, 60645, F01K 716

Patent

active

043936571

ABSTRACT:
A steam-generating system has a construction which omits the vaporizer from a waste-heat boiler of a waste-heat recovery Rankine cycle while retaining the superheater. In this system, a superheated steam emanating from the outlet of the superheater is divided into steam for the superheater system and steam for the steam turbine system. The turbine steam is adiabatically expanded, then condensed and liquefied into water in the condenser, and subsequently converted into high-pressure hot water. This high-pressure hot water is injected into the circulation steam and consequently cooled to produce saturated steam. The saturated steam is returned to the inlet of the superheater and utilized therein to exchange heat with waste gas. The steam-generating system therefore, functions as a non-boiling system wherein the superheated steam generated in a mass flow equal to the mass flow of water injected into the circulation steam moves at a constant flow volume and is utilized as the working steam for the steam turbine system. Thus, the steam-generating system is enabled to generate steam of high temperature and pressure.

REFERENCES:
patent: 3006146 (1961-10-01), Jackson
patent: 4143516 (1979-03-01), Long

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