| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust heat recovery Rankine cycle system in which exhaust heat is efficiently recovered in a form appropriate to heat demand.SOLUTION: An exhaust heat recovery Rankine cycle system 1 includes a first Rankine cycle 2 which is operated by a first working medium, and a second Rankine cycle 3 which is operated by a second working medium at a boiling point lower than at that of the first working medium. The first Rankine cycle 2 comprises a first condenser 7 in which steam of the first working medium is condensed by the second working medium. The second Rankine cycle 3 comprises a second condensate pump 14 which is a condensate pump for supplying the second working medium to the first condenser 7, a metering valve 17 which changes a flow rate of the condensate pump 14, and a gas-liquid separation device 15 which separates the second working medium heated by the first condenser 7 into a gas phase and a liquid phase. The gas phase of the second working medium is supplied to an expander, and the liquid phase of the second working medium is supplied to a heat exchanger 16. |
