Sliding pressure flash tank

Details Sliding pressure flash tank Sliding pressure flash tank

1981-11-19

1983-09-06

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

60664, 60659, 60 39182, F01K 1302

Patent

active

044021836

ABSTRACT:
This application is directed to a method and apparatus for improving the useful thermal yield of a saturated water flashed steam source over a wide range of steam turbine load. A flash tank pressure control in its simplest form maintains constant steam pressure with variable input water flow and inlet water enthalpy. This permits optimizing a design point relationship between water temperature, water flow, flash tank steam pressure and turbine stage pressure. If turbine stage pressure is used as a reference to reduce the flash tank steam pressure for part load operation, then more steam is available from a given flow of saturated water, and the throttling loss through the pressure control valve can be minimized.

REFERENCES:
patent: 3220193 (1965-11-01), Strohmeyer, Jr.
patent: 4118935 (1981-10-01), Andersson
patent: 4203297 (1980-05-01), Sakai et al.
patent: 4253308 (1981-03-01), Eggenberger et al.

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