Global to push GA events into
skip to main content

Title: Method and apparatus for steam mixing a nuclear fueled electricity generation system

A method and apparatus for improving the efficiency and performance of a nuclear electrical generation system that comprises the addition of steam handling equipment to an existing plant that results in a surprising increase in plant performance. More particularly, a gas turbine electrical generation system with heat recovery boiler is installed along with a micro-jet high pressure and a low pressure mixer superheater. Depending upon plant characteristics, the existing moisture separator reheater (MSR) can be either augmented or done away with. The instant invention enables a reduction in T.sub.hot without a derating of the reactor unit, and improves efficiency of the plant's electrical conversion cycle. Coupled with this advantage is a possible extension of the plant's fuel cycle length due to an increased electrical conversion efficiency. The reduction in T.sub.hot further allows for a surprising extension of steam generator life. An additional advantage is the reduction in erosion/corrosion of secondary system components including turbine blades and diaphragms. The gas turbine generator used in the instant invention can also replace or augment existing peak or emergency power needs. Another benefit of the instant invention is the extension of plant life and the reduction of downtime due to refueling.
Inventors:
 [1];  [2]
  1. (Richland, WA)
  2. (Kennewick, WA)
Issue Date:
OSTI Identifier:
870468
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
Patent Number(s):
US 5526386
Contract Number:
AC06-76RL01830
Research Org:
BATTELLE MEMORIAL INSTITUTE
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; steam; mixing; nuclear; fueled; electricity; generation; improving; efficiency; performance; electrical; comprises; addition; handling; equipment; existing; plant; results; surprising; increase; particularly; gas; turbine; heat; recovery; boiler; installed; micro-jet; pressure; mixer; superheater; depending; characteristics; moisture; separator; reheater; msr; augmented; instant; enables; reduction; hot; derating; reactor; unit; improves; conversion; cycle; coupled; advantage; extension; fuel; length; due; increased; allows; generator; life; additional; erosion; corrosion; secondary; components; including; blades; diaphragms; replace; augment; peak; emergency; power; benefit; downtime; refueling; additional advantage; electrical generation; electrical conversion; heat recovery; turbine blade; conversion efficiency; steam generator; nuclear fuel; gas turbine; turbine blades; turbine generator; components including; reactor unit; recovery boiler; moisture separator; mixer superheater; separator reheater; turbine electrical; surprising increase; surprising extension; steam handling; augment existing; length due; pressure mixer; plant performance; plant life; plant characteristics; improves efficiency; increased electrical; fuel cycle; handling equipment; steam mixing; nuclear electrical; emergency power; existing plant; existing moisture; existing peak; generator life; cycle length; conversion cycle; including turbine; nuclear electric; time due; electricity generation; /376/60/