Article
Green & Sustainable Science & Technology
Tiansheng Zhang, Chun Liu, Peter Bayer, Liwei Zhang, Xulong Gong, Kai Gu, Bin Shi
Summary: This study measured the shallow temperatures down to a depth of 100 m in 19 closed boreholes in Nanjing, China, for one year, aiming to understand the subsurface thermal regime and its influencing factors. The results showed that surface temperatures were most dynamic and influenced by air temperature, while temperatures remained stable at depths of 10-20 m. Geological and hydrological conditions played a primary role in affecting subsurface heat flux and loss, with urban land cover change and enhanced heat release from urbanization contributing to a subsurface urban heat island. The monitoring concept used in this study can provide continuous profiles of subsurface temperature and serve as a reference for city-wide geothermal monitoring in other urban areas.
Article
Energy & Fuels
Fan Yang, Mingchuan Wang, Jianyun Feng, Ying Zhang, Dianwei Zhang, Dongjun Feng, Ting Lu
Summary: This study estimates the potential of a geothermal field using a refined geological model and 3D numerical temperature model, showing that the geothermal resources are favorable with high temperatures concentrated near the down-thrown side of the fault.
Article
Green & Sustainable Science & Technology
Shengtao Li, Dongguang Wen, Bo Feng, Fengyu Li, Dongdong Yue, Qiuxia Zhang, Junzhao Wang, Zhaolong Feng
Summary: Buildings of over 34,000,000m2 areas in Tianjin, China, are heated using hydro-geothermal energy. Karst reservoirs are the most significant hydro-geothermal resources being utilized, but production and injection imbalance leads to a sharp decline in geothermal pressure. This study focuses on the Panzhuang karst geothermal reservoir (PGR) and establishes a 3D realistic geothermal model to analyze temperature distribution and variation in both production reservoirs and deep wells under exploitation. Well placement is optimized to maintain reservoir pressure and reduce the risk of heat breakthrough, with optimized production and injection rates estimated at 150 m3/h.
Article
Green & Sustainable Science & Technology
Siyu Zhang, Zhenjiao Jiang, Shengsheng Zhang, Qixing Zhang, Guanhong Feng
Summary: The study optimized well placement in doublet well systems in the Gonghe Basin, China, considering the natural hydro-thermal flow system. Intensive well placement was found to be more effective than extensive well placement, resulting in higher outflow temperatures and lower groundwater level changes. This approach provides important insights for large-scale geothermal exploitation in other geothermal fields.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Bo Feng, Hao Ren, Yabin Yang, Zhenpeng Cui, Jichu Zhao
Summary: Geothermal energy is a renewable energy source with abundant reserves, cleanliness, and environmental friendliness, which has been widely used in the heating industry. The single-well closed-loop geothermal system, which takes heat without using water, is mainly used for geothermal heating. This study uses an actual operating single-well geothermal system in the Songyuan area of Jilin Province as a case study and establishes a numerical model based on the T2WELL simulation program to analyze the flow production temperature and heat extraction response law of the system under different key factors. An optimized development and utilization plan is proposed based on the simulation results, providing theoretical references and heating potential evaluations for the promotion of single-well geothermal systems in Northeast China.
Article
Geosciences, Multidisciplinary
Mingchuan Wang, Fan Yang, Ying Zhang, Dianwei Zhang, Jianyun Feng, Jun Luo, Yan Zeng
Summary: This study aims to assess the thermal energy potential of the M research area in the Maichen Sag, a geothermal prospect in South China, using stochastic methodologies. The proposed method combines experimental design and response surface methodology to build proxy numerical models, resulting in a more accurate evaluation of geothermal potential compared to the typical volumetric technique.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Geological
Ryota Goto, Noriaki Watanabe, Kiyotoshi Sakaguchi, Takahiro Miura, Youqing Chen, Takuya Ishibashi, Eko Pramudyo, Francesco Parisio, Keita Yoshioka, Kengo Nakamura, Takeshi Komai, Noriyoshi Tsuchiya
Summary: Research has shown that in superhot geothermal environments, hydraulic fracturing can form a dense network of permeable fractures known as a cloud-fracture network. Experimental support for the use of the Griffith failure criterion as a plausible criterion for cloud-fracture network formation has been provided. This study provides the theoretical basis needed to establish the procedure for hydraulic fracturing in superhot EGS for the first time.
ROCK MECHANICS AND ROCK ENGINEERING
(2021)
Article
Engineering, Geological
Feng Ma, Guihong Liu, Zhihong Zhao, Haoran Xu, Guiling Wang
Summary: Numerical reservoir modeling is crucial for understanding and predicting the performance of geothermal reservoirs. This study developed an integrated model to simulate the thermo-hydro-mechanical processes in geothermal reservoirs. Results from a case study showed that the developed integrated model is a robust tool for predicting the performance of city-scale geothermal fields.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Review
Energy & Fuels
Chaofan Song, Yang Li, Taha Rajeh, Ling Ma, Jun Zhao, Wenjia Li
Summary: Ground source heat pumps (GSHPs) are a renewable energy technology known for their high efficiency, energy saving, economic feasibility, and environmental protection features. In China, GSHPs have been widely adopted for building heating and cooling, showing great potential for future energy development. This paper summarizes the classification, development history, and use status of shallow GSHPs, and also analyzes several typical engineering cases and illustrates promising development trends and advanced technologies.
PROTECTION AND CONTROL OF MODERN POWER SYSTEMS
(2021)
Article
Green & Sustainable Science & Technology
A. Mott, A. Baba, M. Hadi Mosleh, H. E. Okten, M. Babaei, A. Y. Goren, C. Feng, Y. K. Recepoglu, T. Uzelli, H. Uytun, D. Morata, A. Yuksel, M. Sedighi
Summary: The problem of hazardous chemicals, particularly boron, in geothermal fluid is a critical environmental concern. Poor management and inadequate treatment of geothermal fluids can lead to excessive release of boron, which has toxic effects on plants, humans, and animals. This paper provides a comprehensive review on the sources, toxicity, and management strategies of boron in geothermal fluid, highlighting the need for further research and development of cost-effective and environmentally friendly treatment technologies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Environmental Sciences
Yang Yang, Zhang Jianmin, Hou Yaya, Kao Xiaoxuan
Summary: The research shows that using geothermal resources for heating can significantly reduce CO2 emissions, and the higher the proportion of geothermal use is, the greater the CO2 emission reduction before 2035. However, the fifteen provinces and cities that clearly levy geothermal resource taxes will find it difficult to achieve corporate profits with the current residential heating utilization price and geothermal energy resource tax rate, requiring a significant increase in geothermal heating prices to achieve a balance of income and expenditures for geothermal enterprises.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Thermodynamics
M. Soltani, Pooya Farzanehkhameneh, Farshad Moradi Kashkooli, Armughan Al-Haq, Jatin Nathwani
Summary: The study optimized parameters of geothermal heat pump (GHP) system using genetic algorithm, reducing installation costs and improving energy efficiency over a ten-year simulation. Ethylene glycol was identified as the preferred circulating fluid for significant energy consumption reduction.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Yu Xu, Zijun Li, Ming Tao, Saeid Jalilinasrabady, Junjian Wang, Gang Li, Kaiqi Zhong
Summary: Cooling energy demands are high in conventional mine cooling systems and increase with mining depths. The synergetic mining of mine geothermal energy (SMGE) is a promising approach for heat hazard control in deep mines, with low energy consumption and cost. The study investigates the influence of water injection parameters on the cooling effect and heat recovery performance of the SMGE system.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Guowen Wang, Jian Kuang
Summary: Northeast China, with high energy consumption and carbon emissions, can effectively address these issues through the utilization of geothermal resources. However, the lack of geothermal manifestations and systematic exploration methods hinder the utilization of geothermal resources in this region. The study in Tonghe County, Northeast China, along the Yilan-Yitong lithospheric fault, conducted a comprehensive analysis to investigate the origin of geothermal resources. The findings suggest the alkaline Na-HCO3 type geothermal water in the study area is of local meteoric origin and recharged from the surrounding hilly area. The establishment of a geothermal water circulation path model provides important guidance for the scientific exploration of geothermal resources in Northeast China.
Article
Environmental Sciences
Rui Duan, Peiyue Li, Lei Wang, Xiaodong He, Lei Zhang
Summary: This study investigated the hydrochemical properties and recharge sources of geothermal and phreatic waters in Lanzhou city. The results showed that the geothermal and phreatic waters have different hydrochemical properties and may have a hydraulic connection.
Article
Energy & Fuels
Wei Xu, Shaopeng Huang, Jiong Zhang, Ruyang Yu, Yinhui Zuo, Yongshui Zhou, Junhe Chang
ENERGY EXPLORATION & EXPLOITATION
(2019)
Article
Remote Sensing
Wentao Duan, Shaopeng Huang, Chenwei Nie
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2018)
Article
Geosciences, Multidisciplinary
Xiaoyin Tang, Yinhui Zuo, Barry Kohn, Yi Li, Shaopeng Huang
Article
Environmental Sciences
Wentao Duan, Shaopeng Huang, Chenwei Nie
Article
Energy & Fuels
Jiong Zhang, Shaopeng Huang, Yinhui Zuo, Yongshui Zhou, Zhi Liu, Wentao Duan, Wei Xu
Article
Energy & Fuels
Wei Xu, Shaopeng Huang, Jiong Zhang, Yinhui Zuo, Yongshui Zhou, Tingting Ke, Ruyang Yu, Yi Li
Summary: The Erlian Basin, located in the eastern Central Asian Orogenic Belt, has high geothermal gradients and heat flow, with anomalies in certain areas correlated with Cenozoic volcanoes. The geothermal regime of the Erlian Basin is mainly influenced by the subduction and rollback of the Pacific Plate.
Article
Energy & Fuels
Tingting Ke, Shaopeng Huang, Wei Xu, Xuxiang Li
Summary: In this study, the optimal design of multiple-doublet systems for efficient geothermal exploitation in Hot Sedimentary Aquifers (HSA) was investigated. The study found that under the production-well-led scenario, thermal breakthrough time is increased, heat production costs are reduced, and well lifetime and energy production are improved. Layout optimization can enhance energy recovery and increase the efficiency of heat extraction in reservoirs.
Article
Energy & Fuels
Tingting Ke, Shaopeng Huang, Wei Xu, Xiaoyin Tang, Xuxiang Li
Summary: A good understanding of the long-term multi-doublet performance is crucial for sustainable and economical hydrothermal production with reinjection in sandstone reservoirs. This study evaluates the performance of different multi-doublet layout plans in two sandstone reservoirs, showing that layout, doublet orientations, well spacing, and flow rate all have significant impacts on energy production and Levelized Cost of Heat. Doublet performance is better in tramline configurations compared to checkboard configurations, especially in reservoirs with greater permeability.
Article
Astronomy & Astrophysics
Chunyu Ding, Siting Xiong, Jing Li, Yan Su, Shaopeng Huang
Summary: This study quantifies the heterogeneity of the lunar regolith using the high-frequency Yutu-2 radar observation and finds a positive correlation between heterogeneity and geological age. The findings are important for interpreting lunar observation data.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Environmental Sciences
Jietao Lei, Zhiguo Meng, Yongzhi Wang, Shaopeng Huang, Jinsong Ping, Zhanchuan Cai, Yuanzhi Zhang
Summary: This study used microwave radiometer (MRM) data from the Chang'e-2 satellite to investigate the volumetric thermal emission features of basaltic deposits in Mare Frigoris on the Moon. The study found a strong correlation between the MRM data and the (FeO + TiO2) abundance of pristine basalts, which was less influenced by ejecta contamination. The results also showed that the (FeO + TiO2) abundance of basalt decreased with age in each quadrant of Mare Frigoris, and the brightness temperature was mainly influenced by the (FeO + TiO2) abundance of surface deposits. Additionally, a warm microwave anomaly was observed, which was related to the positive Bouguer gravity anomaly derived from GRAIL data in terms of spatial distribution.
Article
Environmental Sciences
Chunyu Ding, Yan Su, Zhonghan Lei, Zongyu Zhang, Mi Song, Yuanzhou Liu, Ruigang Wang, Qingquan Li, Chunlai Li, Shaopeng Huang
Summary: In this study, the loss tangent of lunar regolith at the Chang'E-5 landing site was estimated using the frequency shift method. The results showed that the loss tangent at the landing site is substantially higher than the typical lunar regolith, indicating a young basalt age and high TiO2+FeO content.
Article
Geochemistry & Geophysics
Fan YanXia, Li HaiLong, Zhang JunLong, Wang QiangMao, Ren TianXiang, Zhang Min, Huang ShaoPeng, Qin XiangHui
Summary: This paper focuses on the geothermal distribution characteristics and geothermal-controlling structures in the Southeast Coast of China. The study takes the Huangshadong Geothermal Field in Huizhou City as the research object and carries out drilling, geological survey, and remote sensing interpretation. The results reveal the geological properties and structural characteristics of the area, and emphasize the importance of the pull-apart basin as a fundamental geothermal-controlling structure. The NE-NEE fault zone is identified as the main controlling structure for geothermal field development in Guangdong Province.
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
(2022)
Article
Geology
Yu RuYang, Huang ShaoPeng, Zhang Jiong, Xu Wei, Ke TingTing, Zuo YinHui, Zhou YongShui
ACTA PETROLOGICA SINICA
(2020)
Article
Multidisciplinary Sciences
Zhi Liu, Shaopeng Huang, Zhangdong Jin
Article
Geochemistry & Geophysics
Tang XiaoYin, Huang ShaoPeng, Zhang GongCheng, Yang ShuChun, Hu ShengBiao
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
(2018)
