Verfahren zur Wirkungsgraderhoehung des energetischen Kreisprozesses einer Dampfturbine fuer ueberkritische Parameter

摘要

A method of increasing the efficiency of a power cycle of a steam turbine at supercritical steam conditions comprises the steps of, first expanding the working medium at supercritical steam conditions to a pressure higher than the critical pressure and then dividing the working medium into first and second streams. The first stream is expanded in the turbine, with interstage reheating, and multi-stage regenerative feed water heating is effected by condensing extraction steam and cooling the second stream by heat exchange with the feed water preliminary heated by the regeneration extractions whereupon the second stream is mixed with the feed water and returned to the first expanding step to complete the cycle.