Results 1 to 10 of about 204,167 (205)

Thermal Performance Analysis on the Seasonal Heat Storage by Deep Borehole Heat Exchanger with the Extended Finite Line Source Model

Energies, 2022
Deep borehole heat exchanger is promising and competitive for seasonal heat storage in the limited space underground with great efficiency. However, seasonal heat storage performance of the essentially deep borehole heat exchanger reaching kilometers ...
Xiangxi Qin, Yazhou Zhao, Chengjun Dai, Jian Wei, Dahai Xue   +4 more
doaj   +2 more sources

Study on the Influence of Borehole Heat Capacity on Deep Coaxial Borehole Heat Exchanger [PDF]

Sustainability, 2022
Based on a semi-analytical model established previously for heat transfer in coaxial borehole heat exchangers, the influences of the heat capacities of different parts of the borehole (fluid, pipes and grout) on the performance of deep coaxial borehole heat exchanger (DCBHE) are analyzed.
Changlong Wang, Han Fang, Xin Wang, Jinli Lu, Yanhong Sun   +4 more
openaire   +2 more sources

Optimization design and drag reduction characteristics of bionic borehole heat exchanger

Frontiers in Energy Research, 2022
As a renewable energy source, geothermal energy has drawn attention because it is clean, low-carbon, resource-rich, stable, and sustainable supply. In the mining and operation of a geothermal energy system, there is a certain amount of fluid resistance ...
Jiansong Zhang, Yongsheng Liu, Xing Qin, Zijun Dou, Qingsheng Meng, Xiaonan Xu, Jianguo Lv   +6 more
doaj   +2 more sources

Improved Analysis of Borehole Heat Exchanger Performance

Energies, 2023
This paper provides recommendations for improved analyses of the performance of ground-coupled heat pumps. Most research on ground-coupled heat pumps focuses on improving the performance of borehole heat exchangers (BHE) and reducing system costs ...
Lucija Magdic, Tea Zakula, Luka Boban
doaj   +2 more sources

Numerical Study on the Long-Term Performance and Load Imbalance Ratio for Medium-Shallow Borehole Heat Exchanger System

Energies, 2022
To contribute to the goal of carbon neutralization, the closed-loop borehole heat exchanger system is widely applied to use geothermal energy for building cooling and heating.
Ruifeng Wang, Fenghao Wang, Yuze Xue, Jinghua Jiang, Yuping Zhang, Wanlong Cai, Chaofan Chen   +6 more
doaj   +2 more sources

STUDY OF BOREHOLE HEAT EXCHANGER HEAT TRANSFER ENHANCEMENT PARAMETERS

Вестник КазНУ. Серия математика, механика, информатика, 2022
This paper discusses the study of parameters for improving the heat transfer of a borehole heat exchanger for a ground source heat pump application. The study of efficiency parameters was carried out based on an experimental prototype of a ground source ...
T. Amanzholov, E. Belyayev, M. Mohanraj, A. Toleukhanov   +3 more
doaj   +2 more sources

Long-term dynamic heat transfer analysis for the borehole spacing planning of multiple deep borehole heat exchanger

Case Studies in Thermal Engineering, 2022
In this paper, based on the heat transfer characteristics of deep borehole heat exchanger (DBHE), the superposition dimension reduction algorithm was used to solve the heat transfer model of multiple DBHE (MDBHE). Compared with the monitoring field data,
Fangfang Zhang, Liang Fang, Ke Zhu, Mingzhi Yu, Ping Cui, Wenke Zhang, Zhaoyi Zhuang, Zhaohong Fang   +7 more
doaj   +2 more sources

Estimation of borehole heat exchanger thermal properties [PDF]

E3S Web of Conferences, 2018
An important issue in the design of installations with borehole heat exchangers (BHE) is knowledge of the thermo-physical properties of the grouting material and soil.
Wołoszyn Jerzy
doaj   +2 more sources

Study on an advanced borehole heat exchanger for ground source heat pump operating in volcanic island: Case study of Jeju island, South Korea

Frontiers in Built Environment, 2022
This paper presents an advanced borehole heat exchanger that has been developed in order to apply a ground source heat pump to a volcanic island where the existing borehole heat exchangers are inapplicable by local ordinance.
Jong Woo Kim, Jong Woo Kim, Yeong-Min Kim, Yoon Jung Ko, Qian Chen, Cui Xin, Seung Jin Oh   +6 more
doaj   +1 more source

Comparison of Conventional and Variable Borehole Heat Exchangers for Use in a Desiccant Assisted Air Conditioning System

Energies, 2021
The objective of this work is to analyze a gas injection borehole heat exchanger coupled with a desiccant assisted air conditioning system during cooling and heating operation.
Finn Richter, Peter Niemann, Matthias Schuck, Jürgen Grabe, Gerhard Schmitz   +4 more
doaj   +1 more source