Current status and potentials of enhanced geothermal system in China: A review

Yuan, Feng; Chen, Xi; Xu, X. Frank

doi:10.1016/j.rser.2014.01.074

Cited by 70 publications

(24 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(c) the exploration evaluation of deep geothermal resources under 2000m has not been actualized and the resource extent is not clear. (d) the research on hot dry rock utilization technology has not been carried out [21,22].…”

Section: Geothermal Resources Exploration and Evaluation Status And Pmentioning

confidence: 99%

Sustainable Development of Geothermal Industry in China: An Overview

Xu¹,

Li²,

2016

MATEC Web of Conferences

View full text Add to dashboard Cite

Abstract. With a wide distribution, large reserves, low cost, sustainable energy use and environmental protection and other unparalleled advantages, geothermal energy resources is important for China's energy structure adjustment, energy conservation and environment improvement . Currently, geothermal utilization in China is still in its infancy, and Sustainable Development of the geothermal industry is also having a lot of problems. In this paper, the current research on sustainable development of geothermal industry focuses on two aspects: 1. the current situation of geothermal industry development and existing problems, 2. the current situation of sustainable development of the geothermal industry. On the basis of the review, some suggestions for further study on the sustainable development of geothermal industry are put forward.

show abstract

Section: Geothermal Resources Exploration and Evaluation Status And Pmentioning

confidence: 99%

Sustainable Development of Geothermal Industry in China: An Overview

Xu¹,

Li²,

2016

MATEC Web of Conferences

View full text Add to dashboard Cite

show abstract

“…In order to reduce the fossil fuel consumption, ground-source heat pumps (GSHP) are becoming 2 a widely employed technology for heating and cooling buildings and for domestic hot water 3 production [1,2,3,4,5]. GSHP attract worldwide interest due to their environmental protection, 4 energy efficiency and from being a renewable energy form [6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

“…GSHP attract worldwide interest due to their environmental protection, 4 energy efficiency and from being a renewable energy form [6,7,8,9]. 5 In dynamic simulation applications, such as in the modeling of heat pump systems integrated to 6 buildings, it is required to evaluate the heat pump performance under particular operating performance, and thus increase the potential of GSHP implementation in buildings. 23 The paper is organized as follows.…”

Section: Introductionmentioning

confidence: 99%

“…A GSHP system will 4 extract/discharge thermal energy for all of its applications [12,13,14,15]. In order to make it 5 easier for engineers when it comes to GSHP selection and sizing for a particular building, GSHP 6 manufacturers offer performance data tables from their catalogue. In heating mode, such 7 specification tables give data of compressor power input (P), heat extracted (HE), heat capacity 8 (HC) and COP as a function of the inlet and outlet load temperatures (t il and t ol ) of the distribution 9 circuit fluid entering and leaving the heat pump condenser, the inlet and outlet source temperatures and the ground circuits are respectively the source and the load side in cooling mode.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the same operational approach is used to develop MR models 4 for HP2 and HP3 data. Subscripts 2 and 3 are the response y-variables notations as representing 5 the studied HP2 and HP3 respectively. 6 The results on the statistical evaluation of MR models for HP1, HP2 and HP3 are listed in Table 7 6.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Developing multiple regression models from the manufacturer's ground-source heat pump catalogue data

et al. 2016

View full text Add to dashboard Cite

16The performance of ground-source heat pumps (GSHP), often expressed as Power drawn and/or 17 the COP, depends on several operating parameters. Manufacturers usually publish such data in 18 tables for certain discrete values of the operating fluid temperatures and flow rates conditions. In 19 actual applications, such as in dynamic simulations of heat pump system integrated to buildings, 20 there is a need to determine equipment performance under operating conditions other than those 21 listed. This paper describes a simplified methodology for predicting the performance of GSHPs 22 using multiple regression (MR) models as applicable to manufacturer data. We find that fitting 23 second-order MR models with eight statistically significant x-variables from 36 observations 24 appropriately selected in the manufacturer catalogue can predict the system global behavior with 25 good accuracy. For the three studied GSHPs, the external prediction error of the MR models 26 identified following the methodology are 0.2%, 0.9% and 1% for heating capacity (HC) 27 predictions and 2.6%, 4.9% and 3.2% for COP predictions. No correlation is found between 28 residuals and the response, thus validating the models. The operational approach appears to be a 29 reliable tool to be integrated in dynamic simulation codes, as the method is applicable to any 30 GSHP catalogue data.

show abstract

Study on the influence law of well location and water injection displacement on heat extraction performance of EGS

Zhao

Song

Wang

et al. 2023

Energy Science & Engineering

View full text Add to dashboard Cite

The enhanced geothermal system (EGS) is the key to improving the heat production efficiency of hot dry rock (HDR). Due to the existence of EGS, the reservoir produces significant heterogeneity, so the optimal design of well location and injection rate has an important influence on the heat recovery effect of an EGS. To solve this problem, a calculation model for the heat output of an EGS under multifield coupling is established in this paper, and the influence of well location and injection rate on the heat recovery effect under different scales of EGS is deeply analyzed. The results show that the production well location and injection well displacement have a great influence on the heat recovery effect under different fracture‐network scales. The larger the size of the fracture network, the larger the effective utilization area of reservoir heat recovery and the better the effect of heat recovery. The closer the production well is to the fracture network and in the direction of the fracture network, the larger the effective utilization area of reservoir heat recovery is, and the better the effect of heat recovery is. The higher the injection well displacement is, the larger the effective utilization area of reservoir heat recovery is, and the better the heat recovery effect is. The research results have important guiding significance for the optimization of the scale, well placement, and water injection displacement of the EGS in the HDR reservoir.

show abstract

Current status and potentials of enhanced geothermal system in China: A review

Cited by 70 publications

References 48 publications

Sustainable Development of Geothermal Industry in China: An Overview

Sustainable Development of Geothermal Industry in China: An Overview

Developing multiple regression models from the manufacturer's ground-source heat pump catalogue data

Study on the influence law of well location and water injection displacement on heat extraction performance of EGS

Contact Info

Product

Resources

About