A new constant heat flux model for vertical U-tube ground heat exchangers

被引：14
|
作者：
Li, Zhongjian [1 ]
机构：
[1] United Technol Res Ctr China Ltd, Shanghai 200120, Peoples R China
来源：
ENERGY AND BUILDINGS | 2012年 / 45卷
关键词：
Geothermal energy utilization systems; Vertical U-tube ground heat exchangers; Cumulative constant heat flux; Borehole resistance; Short time-step temperature response factors; SIMULATION;
D O I：
10.1016/j.enbuild.2011.11.026
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Vertical U-tube ground heat exchangers (GHEs) are a key component in geothermal energy utilization systems like ground source heat pumps (GSHPs). This paper presents a new constant heat flux model of its. Different from the existing uniform constant heat flux (UCHF) model, the model proposed in this paper is a cumulative constant heat flux (CCHF) model. The model is developed by reconstructing an experiment-verified three-dimensional unstructured finite-volume model. Applying the model, the borehole resistance with any geometric structure can be found. In addition, it may be used to develop the short time-step temperature response factors (TREs) for simulating the behavior of the GHE on a short-time-step basis (one hour or less). (c) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：311 / 316
页数：6
相关论文
共 50 条
  • [31] Numerical Analysis of the Heat Transfer Characteristics of Vertical U-Tube Ground Heat Exchanger Used in Ground Coupled Heat Pump
    Yang, Weibo
    Shi, Mingheng
    Chen, Zhenqian
    6TH INTERNATIONAL SYMPOSIUM ON HEATING, VENTILATING AND AIR CONDITIONING, VOLS I-III, PROCEEDINGS, 2009, : 1857 - 1864
  • [32] Numerical Analysis of the Factors Influencing a Vertical U-Tube Ground Heat Exchanger
    Chen, Shangyuan
    Mao, Jinfeng
    Han, Xu
    Li, Chaofeng
    Liu, Liyao
    SUSTAINABILITY, 2016, 8 (09):
  • [33] Study on the efficiency of single and double U-tube heat exchangers
    Fang, Liang
    Diao, Nairen
    Fang, Zhaohong
    Zhu, Ke
    Zhang, Wenke
    10TH INTERNATIONAL SYMPOSIUM ON HEATING, VENTILATION AND AIR CONDITIONING, ISHVAC2017, 2017, 205 : 4045 - 4051
  • [34] Heat extraction characteristics of a vertical U-tube downhole heat exchanger
    Department of Mechanical Engineering, Akita University, 1-1 Tegatagakuen-cho, Akita-shi, Akita, 010-8502, Japan
    Nihon Kikai Gakkai Ronbunshu, B, 2008, 5 (1145-1153): : 1145 - 1153
  • [35] A new solution for thermal interference of vertical U-tube ground heat exchanger for cold area in China
    Li, Xiao-Yan
    Li, Tian-Yang
    Qu, Dong-Qi
    Yu, Jia-Wen
    GEOTHERMICS, 2017, 65 : 72 - 80
  • [36] Explicit Multipole Formulas for Calculating Thermal Resistance of Single U-Tube Ground Heat Exchangers
    Claesson, Johan
    Javed, Saqib
    ENERGIES, 2018, 11 (01):
  • [37] Thermodynamic optimization of ground heat exchangers with single U-tube by entropy generation minimization method
    Li, Min
    Lai, Alvin C. K.
    ENERGY CONVERSION AND MANAGEMENT, 2013, 65 : 133 - 139
  • [38] An Improved Thermal-Resistance-Capacitance Model for Vertical Single U-Tube Ground Heat Exchanger
    Liao, Quan
    Fan, Yongxiang
    Zhu, Xiaobo
    Li, Jintang
    JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS, 2019, 11 (01)
  • [39] Operation Analyse of a U-tube Ground Heat Exchangers of GSHP system in Cold Region of China
    Li, Huai
    Wu, Jianlin
    Yu, Zhen
    Xu, Wei
    6TH INTERNATIONAL BUILDING PHYSICS CONFERENCE (IBPC 2015), 2015, 78 : 1937 - 1943
  • [40] Thermal performance of the vertical ground heat exchanger with a novel elliptical single U-tube
    Jahanbin, Aminhossein
    GEOTHERMICS, 2020, 86
12345