Experimental Study on Cold Energy Driven ORC Power Generation System based on Variable Heat Source

10.6919/ICJE.202205_8(5).0110

Mei Weng；Jianglong Chen

Cold Energy Driven ORC ； Variable Heat Source ； Three-fluid Heat Exchanger ； Evaporating Temperature ； Cold Energy Utilization

International Core Journal of Engineering

8卷5期（2022 / 05 / 01）

853 - 862

英文

ORC-organic Rankine cycle cold energy power generation technology has a great significance for energy conservation, emission reduction and improving energy utilization. In order to study the changes of cold energy utilization and system power generation caused by the change of evaporating temperature in the organic Rankine cycle, an ORC low-temperature power generation experimental platform with propane (R290) as circulating working medium and three- fluid heat exchanger was built. The system performance of organic Rankine cycle (ORC) and regenerative organic Rankine cycle (RORC) was analyzed and compared. The experimental results showed that with the increase of evaporating temperature, the cold energy utilization rate and system power generation first increased and then decreased. When the evaporating temperature was 29 ℃ and 34 ℃ , the cold energy utilization rate and power generation of the system reached the maximum respectively. The maximum cold energy utilization rate of BORC system and RORC system were 10.01% and 11.68% respectively, and the maximum power generation of the system was 467.8w and 520.9w respectively.

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