TRANSCRITICAL RANKINE POWER CYCLE BY USING A PURE WORKING FLUIDS

摘要

PURPOSE: A transcritical rankine cycle system is provided to reduce the loss of exergy in a heat exchange process by realizing an alternating heat transfer process and increase output of a cycle by sufficiently absorbing heat from a heat source. CONSTITUTION: A transcritical rankine cycle system comprises next steps. Working fluid flows into a condenser, heat-exchanges with cooling water and is condensed in a low temperature/pressure liquid state to the liquid point of a saturation liquid line. After the condensing, working fluid is pressed in a low-temperature and high-pressure state to the liquid point beyond the saturation liquid line at supercritical pressure by the pump. After the pressing, working fluid is heated by a heat source in an initial liquid state and then to over the saturation line of a critical point due to supercritical pressure in the pressing process.