POWER GENERATION WITH COLD ENERGY SOURCES UTILIZING CASCADE OR MULTI-STAGE RANKINE CYCLE

摘要

PURPOSE: A cascade and multi-stage rankine cycle system for cold energy power generation is provided to guarantee high efficiency by utilizing a low-temperature heat source according to each temperature zone using a cascade method and a multi stage method. CONSTITUTION: A cascade and multi-stage rankine cycle system for cold energy power generation(100A) comprises a vaporizer(110) and circulation units. The vaporizer vaporizes working fluids by heat-exchanging the working fluids with a high-temperature heat source(210). The circulation units comprise turbines, condensers, and pumps. The turbines expand the working fluids discharged from the vaporizer, and generate energy. The condensers condense the working fluids by heat-exchanging the working fluids with a low temperature heat source(220) discharged from the turbines. The pumps circulate the working fluids by injecting the working fluids into the vaporizer after compressing the working fluids discharged from the condensers.