Next Article in Journal
Comparative Analysis of Voltage Control in Battery Power Converters for Inverter-Based AC Microgrids
Next Article in Special Issue
Static Formation Temperature Prediction Based on Bottom Hole Temperature
Previous Article in Journal
Electricity Price Forecasting by Averaging Dynamic Factor Models
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Energies 2016, 9(8), 597; doi:10.3390/en9080597

A Selection Method for Power Generation Plants Used for Enhanced Geothermal Systems (EGS)

1,2
,
1,2
,
1,2
and
1,2,*
1
Tianjin Geothermal Research and Training Center, Tianjin University, Tianjin 300072, China
2
Key Laboratory of Efficient Utilization of Low and Medium Grade energy, Ministry of Education of the People’s Republic of China, Tianjin University, Tianjin 300072, China
*
Author to whom correspondence should be addressed.
Academic Editor: Kamel Hooman
Received: 11 June 2016 / Revised: 11 July 2016 / Accepted: 15 July 2016 / Published: 28 July 2016
View Full-Text   |   Download PDF [5001 KB, uploaded 28 July 2016]   |  

Abstract

As a promising and advanced technology, enhanced geothermal systems (EGS) can be used to generate electricity using deep geothermal energy. In order to better utilize the EGS to produce electricity, power cycles’ selection maps are generated for people to choose the best system based on the geofluids’ temperature and dryness conditions. Optimizations on double-flash system (DF), flash-organic Rankine cycle system (FORC), and double-flash-organic Rankine cycle system (DFORC) are carried out, and the single-flash (SF) system is set as a reference system. The results indicate that each upgraded system (DF, FORC, and DFORC) can produce more net power output compared with the SF system and can reach a maximum net power output under a given geofluid condition. For an organic Rankine cycle (ORC) using R245fa as working fluid, the generated selection maps indicate that using the FORC system can produce more power than using other power cycles when the heat source temperature is below 170 °C. Either DF or DFORC systems could be an option if the heat source temperature is above 170 °C, but the DF system is more attractive under a relatively lower geofluid’s dryness and a higher temperature condition. View Full-Text
Keywords: enhanced geothermal systems; power cycle’s selection method; geothermal energy; optimization method enhanced geothermal systems; power cycle’s selection method; geothermal energy; optimization method
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Hu, K.; Zhu, J.; Zhang, W.; Lu, X. A Selection Method for Power Generation Plants Used for Enhanced Geothermal Systems (EGS). Energies 2016, 9, 597.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top