Thermo-economic evaluation and optimization of a regenerative orc cycle utilizing geothermal energy

Saeid Mohammadzadeh Bina, Saeid Jalilinasrabady, Hikari Fujii

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Thermo-Economic analysis was applied for the Regenerative Organic Rankine Cycle utilizing geothermal fluid as a heat source. The considered cycle works with n-Pentane (R601) as a working fluid and uses geofluid at temperature and mass flow rate of 165° C and 100 kg/s, respectively. In order to optimize the cycle in terms of thermodynamics and economics, the important operation parameters such as evaporator pressure, condenser temperature, mass flow rate of geofluid and also pinch point temperature difference were considered. Moreover, the optimum values of parameters were calculated to maximize the thermodynamic efficiencies and minimize the production cost. The optimization process was carried out by direct method in EES (Engineering Equation Solver) to determine the optimum values of mentioned parameters as restriction criteria. The results showed that the cycle gives the highest energy and exergy efficiency of 19.93% and 60.98%, respectively. While the maximum energy output of 3,860 kW was obtained from optimized cycles based on economic considerations. Also, the maximum and minimum cost rate of 28.4 $/GJ and 25.1 $/GJ was estimated for the optimized cycle based on energy efficiency and economic, respectively.

本文言語英語
ホスト出版物のタイトルGeothermal Energy
ホスト出版物のサブタイトルPower To Do More - Geothermal Resources Council 2017 Annual Meeting, GRC 2017
出版社Geothermal Resources Council
ページ2527-2539
ページ数13
ISBN(電子版)0934412227
出版ステータス出版済み - 2017
イベントGeothermal Resources Council 41st Annual Meeting - Geothermal Energy: Power To Do More, GRC 2017 - Salt Lake City, 米国
継続期間: 10 1 201710 4 2017

出版物シリーズ

名前Transactions - Geothermal Resources Council
41
ISSN(印刷版)0193-5933

その他

その他Geothermal Resources Council 41st Annual Meeting - Geothermal Energy: Power To Do More, GRC 2017
Country米国
CitySalt Lake City
Period10/1/1710/4/17

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics

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