FLEXIBILITY IN PRODUCTION OF POWER AND WATER FROM NUCLEAR DESALTING PLANTS

摘要

A number of flowsheets were developed for providing flexibility in the product output of a dual-purpose nuclear desalting plant with base-load rating 500 Mwe and 250 Mgd. The base plant contained a 3228 Mwt pressurized water reactor, a back-pressure turbine-generator and a multistage flash evaporator. The performance and cost of alternative systems for providing flexibility were evaluated by means of a computer model of the plant.nAmong the systems investigated were variable back pressure turbines, optional low pressure condensing turbines, pumped storage, turbine bypass desuperheaters, optional evaporator modules, vapor compression and heat pumps. Some of these systems appeared to be useful for providing economical peak power, for spinning reserve, in trading power for water, or in operating at mismatched product demand.