| 主权项 |
1. A waste heat recovery system, comprising:
a Rankine cycle in which a refrigerant circulates in a refrigerant pump, an evaporator, an expander, and a condenser in sequence; a controller for controlling the Rankine cycle, wherein the waste heat recovery system uses waste heat from an internal combustion engine as a heating source for the evaporator; a set including the expander and the condenser and at least one different set including a different expander and a different condenser are connected in parallel with each other; a device for stopping an operation of the expander in the different set connected in parallel; a pressure sensor in an inlet of the evaporator and a temperature sensor in an outlet of the evaporator, wherein the controller sets or releases at least one of the operation stopping devices such that a measured value of the temperature sensor reaches a prescribed temperature value which is set in advance and is equal to or less than a thermal decomposition temperature of the refrigerant, and wherein the controller controls a rotational speed of the refrigerant pump such that a measured value of the pressure sensor reaches a prescribed pressure value which is set in advance. |
