TY - JOUR
TI - The influence of temperature on geothermal power plant performance based on geology in Huangshadong geothermal field, China
AU - Luo Chao
AU - Huang Lichang
AU - He Jiawei
AU - Huang Huiwen
AU - Cai Shiqian
JN - Thermal Science
PY - 2023
VL - 27
IS - 6
SP - 4361
EP - 4373
PT - Article
AB - 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.