Thermodynamics and Energy


A Study on the Selecting Optimum Condition and Evaporation Temperatures for Four Geothermal Power Generation Systems Under Different Geofluid’s Conditions

Authors: Ri Un-Chol, * Kim Yong-Song, ,Kim Yong-Bae, Ri Chang Il, Ri Hye-Won, Yun Su-Bom

In this study, the optimum flash and evaporation temperatures have been selected for the following four geothermal power generation systems: single-flash system (SF), double-flash system (DF), flash-ORC system (FORC), and double-flash-ORC system (DFORC). The maximum net electricity generated is regarded as an objective function, with the pump and fan consumptions being taken into account. Under the given geofluid’s condition (T= 170℃; x= 0.2), the optimum flash temperature of SF, the optimum 2nd-stage flash temperature of DF, the optimum evaporation temperatures of FORC and DFORC are found to be 150℃, 100℃, 100℃, and 70℃, respectively. More geofluid’s conditions (T= 80~260 ℃ ; x= 0, 0.2, 0.4) have also been considered for the temperature optimization of each system. The optimization results are shown in Fig.4 which can be useful for engineering application.

Comments: 7 Pages.

Download: PDF

Submission history

[v1] 2018-02-22 05:52:49

Unique-IP document downloads: 50 times is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. will not be responsible for any consequences of actions that result from any form of use of any documents on this website.

Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.

comments powered by Disqus