What is ORC low-temperature waste heat power generation technology?

March 08, 2024

What is ORC low-temperature waste heat power generation technology?

Low-temperature waste heat power generation technology refers to technology that converts low-temperature waste heat into electrical energy or mechanical energy to improve the flexibility of energy utilization. Low-temperature waste heat power generation systems include water (steam) cycle power generation systems, organic working fluid cycle power generation systems, external combustion engine heat engine cycle power generation systems, supercritical carbon dioxide cycle power generation systems, etc. At present, ORC (Organic Rankine Cycle) technology has been developed for decades and is relatively representative in this field.

The organic Rankine cycle power generation system is a Rankine cycle that uses low-boiling point organic matter as the working fluid. It mainly consists of a waste heat boiler (or heat exchanger), a turbine (a machine that converts the energy contained in the fluid medium into mechanical work), condensation It is composed of four parts: the device and the working medium pump. The organic working fluid absorbs heat from the waste heat flow in the heat exchanger to generate steam with a certain pressure and temperature. The steam enters the turbine machinery and expands to do work, thereby driving the generator or dragging other power machinery. The steam discharged from the turbine releases heat to the cooling water in the condenser, condenses into a liquid state, and finally returns to the heat exchanger with the help of the working fluid pump, and the cycle continues.

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