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http://dx.doi.org/10.5293/kfma.2016.19.6.034

Effect on the Cycle Efficiency by Using Improved Parts for Operating the ORC  

Cho, Soo-Yong (Gyeongsang National University, Research Center of Aircraft Parts Technology)
Cho, Chong-Hyun (Suntech, R&D Center)
Publication Information
The KSFM Journal of Fluid Machinery / v.19, no.6, 2016 , pp. 34-42 More about this Journal
Abstract
The organic Rankine cycle (ORC) has been used to convert thermal energy to mechanical energy or electricity. The available thermal energy could be waste heat, solar energy, geothermal energy, and so on. However, these kinds of thermal energies cannot be provided continuously. Hence, the ORC can be operated at the off-design point. In this case, the performance of the ORC could be worse because the components of the ORC system designed based on a design point can be mismatched with the output power obtained at the off-design point. In order to improve the performance at the off-design point, a few components were replaced including generator, bearing, load bank, shaft, pump and so on. Experiments were performed on the same facility without including other losses in the experiment. The experimental results were compared with the results obtained with the previous model, and they showed that the system efficiency of the ORC was greatly affected by the losses occurred on the components.
Keywords
Organic Rankine Cycle; Turbo-Expander; Performance Test; Efficiency Improvement; Renewable Energy;
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Times Cited By KSCI : 5  (Citation Analysis)
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