Organic Rankine cycle (ORC) is one of the key technologies to utilize low and medium temperature heat sources. In this paper, the power generating characteristics of the ORC system under variable-condition operation is studied by changing the electric heating power according to an ORC power generation system driven by low-temperature heat source using R245fa as working fluid. The results show that when the changing range of the heat source power is less than 12%, the maximum net generation capacity is 7.8 kW and the power generation efficiency is 8.7%. The minimum net generation capacity is 6.9 kW and the power generation efficiency is 8.26%. The re-stable time of the system is 35 ~ 45 min, where the system responds more quickly to the decrease than to the increase of heat source at the same time. The system can operate stably under this fluctuating heat source condition.
ZHANG Yong-feng
,
WANG Zi-long
,
HUANG Hua-jie
,
ZHONG Shao-geng
. Experimental Research on Power Generation by Organic Rankine Cycle under Variable-Condition Operation[J]. Advances in New and Renewable Energy, 2018
, 6(3)
: 202
-207
.
DOI: 10.3969/j.issn.2095-560X.2018.03.006
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