Power Generation with Cold Energy Sources Utilizing Cascade Rankine Cycle

摘要

The present invention relates to a Cascade Rankine Cycle Device for thermal power generation, an object of the present invention to provide a Cascade Rankine cycle Device for increasing the efficiency that, thermal power generation using the improved Rankine cycle device. cascade for the thermal development of the present invention the Rankine cycle and the multi-stage apparatus, according to the working fluid circulating therein and a high temperature heat source (210) and the Rankine cycle apparatus for performing thermal power using the cold heat source (220, 100), a ten won a high temperature working fluid (210 ) and evaporated to an evaporator heat exchanger (110); The evaporator 110, the n expansion turbine sikimyeo the discharged working fluid to generate energy from the (12n) and the n-th turbine (12n) the n-th low-temperature working fluid for condensing the exhaust heat source (220) and heat to from a condenser (13n) and, the n n-th cycle unit comprising a pump (14n) for circulating a working fluid condenser, the n (13n) compresses a working fluid discharged from the inlet to the evaporator was worked up by 110 ( 15n); Comprises a jidoe, the n-th circular portion (15n) that is provided with the N, a low temperature heat source (220) is the N-cycle portion of the n-th cycle the N portion (15n) from the first circulation unit 151 ( 15N) to be characterized in that it is formed so as to sequentially pass. (At this time, n = 1, ..., N is, N = 2 or more integer) ;