Exergetic sensitivity analysis of orc geothermal power plant considering ambient temperature

Saeid Mohammadzadeh Bina, Saeid Jalilinasrabady, Hikari Fujii

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Binary cycles are the most common method to extract energy from moderate geothermal resources worldwide. This research investigates and compares the performance of Organic Rankine Cycle (ORC) for binary geothermal power plants from the thermodynamic point of view. A hypothetical ORC cycle which is using 150°C geothermal water as a heat source was considered in this study and its exergy and energy analysis were performed. A parametric study was also performed to understand the effect of ambient temperature and its effect on both energy and exergy efficiencies. The exergy and energy efficiencies, cooling water pump power consumption and also exergy destruction for each component are calculated within different ambient temperature and dead state as well. The results indicated that energy efficiency of the plant varies by 1 and 7% in two different scenarios that were assumed based on different control volume description for the system. Scenario (a) and (b) are based on brine exergy input rate to plant and exergy flow rate decrement across heat exchanger, respectively. Meanwhile, exergetic efficiencies of the cycle face 70%; and 34% increment based on different exergy inflows scenarios. It was concluded that condensers are the most sensitive component to dead state temperature.

Original languageEnglish
Title of host publicationGeothermal Energy Here and Now
Subtitle of host publicationSustainable, Clean, Flexible - Geothermal Resources Council 2016 Annual Meeting
PublisherGeothermal Resources Council
Pages279-286
Number of pages8
ISBN (Electronic)0934412219
Publication statusPublished - Jan 1 2016
EventGeothermal Resources Council 2016 Annual Meeting - Geothermal Energy Here and Now: Sustainable, Clean, Flexible, GRC 2016 - Sacramento, United States
Duration: Oct 23 2016Oct 26 2016

Publication series

NameTransactions - Geothermal Resources Council
Volume40
ISSN (Print)0193-5933

Other

OtherGeothermal Resources Council 2016 Annual Meeting - Geothermal Energy Here and Now: Sustainable, Clean, Flexible, GRC 2016
CountryUnited States
CitySacramento
Period10/23/1610/26/16

Fingerprint

Geothermal power plants
exergy
geothermal power
Exergy
sensitivity analysis
power plants
Sensitivity analysis
ambient temperature
power plant
Rankine cycle
temperature
Temperature
energy efficiency
cycles
Energy efficiency
energy
geothermal resources
liquid cooling
cooling water
condensers

All Science Journal Classification (ASJC) codes

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

Cite this

Mohammadzadeh Bina, S., Jalilinasrabady, S., & Fujii, H. (2016). Exergetic sensitivity analysis of orc geothermal power plant considering ambient temperature. In Geothermal Energy Here and Now: Sustainable, Clean, Flexible - Geothermal Resources Council 2016 Annual Meeting (pp. 279-286). (Transactions - Geothermal Resources Council; Vol. 40). Geothermal Resources Council.

Exergetic sensitivity analysis of orc geothermal power plant considering ambient temperature. / Mohammadzadeh Bina, Saeid; Jalilinasrabady, Saeid; Fujii, Hikari.

Geothermal Energy Here and Now: Sustainable, Clean, Flexible - Geothermal Resources Council 2016 Annual Meeting. Geothermal Resources Council, 2016. p. 279-286 (Transactions - Geothermal Resources Council; Vol. 40).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mohammadzadeh Bina, S, Jalilinasrabady, S & Fujii, H 2016, Exergetic sensitivity analysis of orc geothermal power plant considering ambient temperature. in Geothermal Energy Here and Now: Sustainable, Clean, Flexible - Geothermal Resources Council 2016 Annual Meeting. Transactions - Geothermal Resources Council, vol. 40, Geothermal Resources Council, pp. 279-286, Geothermal Resources Council 2016 Annual Meeting - Geothermal Energy Here and Now: Sustainable, Clean, Flexible, GRC 2016, Sacramento, United States, 10/23/16.
Mohammadzadeh Bina S, Jalilinasrabady S, Fujii H. Exergetic sensitivity analysis of orc geothermal power plant considering ambient temperature. In Geothermal Energy Here and Now: Sustainable, Clean, Flexible - Geothermal Resources Council 2016 Annual Meeting. Geothermal Resources Council. 2016. p. 279-286. (Transactions - Geothermal Resources Council).
Mohammadzadeh Bina, Saeid ; Jalilinasrabady, Saeid ; Fujii, Hikari. / Exergetic sensitivity analysis of orc geothermal power plant considering ambient temperature. Geothermal Energy Here and Now: Sustainable, Clean, Flexible - Geothermal Resources Council 2016 Annual Meeting. Geothermal Resources Council, 2016. pp. 279-286 (Transactions - Geothermal Resources Council).
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