THERMAL SCIENCE

International Scientific Journal

Chao Luo

,

Lichang Huang

,

Jiawei He

,

Huiwen Huang

,

Shiqian Cai

THE INFLUENCE OF TEMPERATURE ON GEOTHERMAL POWER PLANT PERFORMANCE BASED ON GEOLOGY IN HUANGSHADONG GEOTHERMAL FIELD, CHINA

ABSTRACT
The geological structure is rather complicated in Guangdong province, in China. The 10 deep fault belts are mainly oriented in North-East. The North-East fault belts are good channels for deep thermal energy upwelling, which can form a geothermal water reservoir zone. The heating of atmospheric precipitation and surface water by deep rocks is the primary formation mechanism for the hydrothermal resources in the Huangshadong geothermal field. The results show that the two-stage conversion system of flash-binary is more reasonable when the geofluid temperature is higher than 130°C. With every 10°C increment of geofluid temperature for flash-binary system, the power output and exergy efficiency in-crease by 21.6-38.7% and 6.0-13.1%, respectively. The power output and exergy efficiency will decrease by about 20-40% when cooling temperature arising from 15°C to 25°C. The research will provide the basic data for the demonstration of geothermal resource exploitation.
KEYWORDS
geothermal geology, power system, optimal design, feasible proposal, thermodynamic
PAPER SUBMITTED: 2022-12-15
PAPER REVISED: 2023-02-22
PAPER ACCEPTED: 2023-03-07
PUBLISHED ONLINE: 2023-04-22
DOI REFERENCE: https://doi.org/10.2298/TSCI221215079L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 6, PAGES [4361 - 4373]
REFERENCES
  1. Charlotte, A. A., et al., Unlocking the UK Geothermal Resource Base, Proceedings, World Geothermal Congress, Reykjavik, Iceland, 2020
  2. Stefansson, V., World geothermal assessment Proceedings, World Geothermal Congress, Antalya, Turkey, 2005
  3. Zhang, L., et al., Geothermal Power Generation in China: Status and Prospects, Energy Science & Engineering, 7 (2019), 5, pp. 1428-1450
  4. Parri, R., Lazzeri, F., Geothermal Power Generation, Woodhead Publishing, Sawoton, UK, 2016, pp. 537-590
  5. Dipippo, R., Geothermal Power Plants: Evolution and Performance Assessments, Geothermics, 53 (2015), 11, pp. 291-307
  6. Huttrer, G. W., Geothermal Power Generation in the World 2015-2020 Update Report, Proceedings, World Geothermal Congress, Reykjavik, Iceland, 2020
  7. Wang, Y. Z., et al., The Above-Ground Strategies to Approach the Goal of Geothermal Power Generation in China: State of Art and Future Researches, Renewable and Sustainable Energy Reviews, 138 (2021), Mar., pp. 1364-0321
  8. Tian, T. S., et al., Rapid Development of China's Geothermal Industry - China National Report of the 2020 World Geothermal Conferencee, Proceedings, World Geothermal Congress, Reykjavik, Iceland, 2021
  9. Basaran, T., et al., Thermodynamic and Mathematical Analysis of Geothermal Power Plants Operating in Different Climatic Conditions, Case Studies in Thermal Engineering, 30 (2022), 101727
  10. Zhang H., et al., Thermodynamic Performance Analysis of an Improved Coal-Fired Power Generation System Coupled with geothermal Energy Based on Organic Rankine Cycle, Renewable Energy, 201 (2022), Dec., pp. 273-290
  11. Li, J, et al., Influences of Climatic Environment on the Geothermal Power Generation Potential, Energy Conversion and Management, 268 (2022), 115980
  12. Yilmaz, F., et al., Modeling and Design of the New Combined Double-Flash and Binary Geothermal Power Plant for Multigeneration Purposes; Thermodynamic Analysis, International Journal of Hydrogen Energy, 47 (2022), 45, pp. 19381-19396
  13. Zhang, L., Sobhani, B., Comprehensive Economic Analysis and Multi-Objective Optimization of an Integrated Power and Freshwater Generation Cycle Based on Flash-Binary Geothermal and Gas Turbine Cycles, Journal of Cleaner Production, 364 (2022), 132644
  14. Li, T., et al., Thermodynamic, Economic, and Environmental Performance Comparison of Typical Geothermal Power Generation Systems Driven by Hot Dry Rock, Energy Reports, 8 (2022), Nov., pp. 2762-2777
  15. Franco, A., Vaccaro, M. A., Combined Energetic and Economic Approach for the Sustainable Design of Geothermal Plants, Energy Conversion and Management, 87 (2014), Nov., pp. 735-745
  16. Li, J. X., et al., Evaluation of Mineral-Aqueous Chemical Equilibria of Felsic Reservoirs with Low-Medium Temperature: A Comparative Study in Yangbajing Geothermal Field and Guangdong Geothermal Fields, Journal of Volcanology and Geothermal Research, 352 (2018), Feb., pp. 92-105
PDF VERSION [DOWNLOAD]
The influence of temperature on geothermal power plant performance based on geology in Huangshadong geothermal field, China

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence