NUMERICAL INVESTIGATION ON FREE COOLING PERFORMANCE OF GROUND-SOURCE HEAT PUMP IN A SOLAR GREENHOUSE

被引：2

作者：

Hou, Zhao ^{[1
]}

Hu, Yuqiu ^{[1
]}

Liu, Xiaojie ^{[1
]}

Wang, Jianhua ^{[1
]}

Yang, Mei ^{[1
]}

Fan, Jun ^{[1
]}

机构：

[1] Shandong Agr Univ, Coll Water Conservancy & Civil Engn, Tai An, Peoples R China

来源：

THERMAL SCIENCE | 2023年 / 27卷 / 6A期

关键词：

ground source heat pump; borehole free cooling; solar greenhouse; ENERGYPLUS; SYSTEM; EXCHANGER; SIMULATION;

D O I：

10.2298/TSCI221203161H

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents the numerical study of a ground source heat pump with borehole free cooling in a solar greenhouse. The system is mainly composed of a solar greenhouse with a water-water heat pump, a ground heat exchanger, and several pipes for free cooling. Thermal performances of ground source heat pump with and without borehole free cooling are investigated. The cooling time of the solar greenhouse is divided into transitional seasons (May and September) and summer seasons (from June to August). The mixed mode, including the free cooling mode and the ground source heat pump cooling mode, runs in summer seasons. During the entire transition seasons, the free cooling mode consumes 33.6% of the electricity in the ground source heat pump cooling mode and the soil thermal storage in free cooling mode is 76.3% of that in ground source heat pump cooling mode. Throughout the summer seasons, the power consumption of the mixed mode is 4.3% lower than that of the ground source heat pump cooling mode, and mixed mode soil thermal storage is 19.5% lower than that of ground source heat pump cooling mode. The results indicate that borehole free cooling system has better energy-saving performance during whole cooling period. In addition, a borehole free cooling system can also reduce the thermal imbalance in the soil.

引用

页码：4719 / 4732

页数：14

共 50 条

[21] Annual energy performance simulation of ground source heat pump in a solar greenhouse
Hou, Zhao
Wang, Zhe
Sun, Zhen
Gao, Peng
Hu, Yuqiu
Fan, Jun
CASE STUDIES IN THERMAL ENGINEERING, 2024, 59
[22] Study of Seasonal Storage in Ground-Source Heat Pump with Solar Collector
Wang, Fang
Niu, Lianjing
Liu, Zhilong
Zheng, Maoyu
FRONTIERS OF MANUFACTURING AND DESIGN SCIENCE II, PTS 1-6, 2012, 121-126 : 2897 - +
[23] Study on Hybrid Solar Energy and Ground-Source Heat Pump System
Liu Yi
Li Bing-xi
Zhou Yi
Fu Zhong-bin
Xu Xin-hai
ICEET: 2009 INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT TECHNOLOGY, VOL 1, PROCEEDINGS, 2009, : 845 - 848
[24] Field test of a ground-source heat pump system and numerical investigation on advanced control strategies
Li, Yiming
Qian, Suxin
APPLIED THERMAL ENGINEERING, 2024, 246
[25] Photovoltaic and solar-assisted ground-source heat pump systems
Varney, Kevin E.
Vahdati, Maria M.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-ENGINEERING SUSTAINABILITY, 2013, 166 (01) : 32 - 45
[26] Performance study of a novel hybrid solar PV/T ground-source heat pump system
Cai, Junjie
Quan, Zhenhua
Li, Tianyao
Hou, Longshu
Zhao, Yaohua
Yao, Mengliang
10TH INTERNATIONAL SYMPOSIUM ON HEATING, VENTILATION AND AIR CONDITIONING, ISHVAC2017, 2017, 205 : 1642 - 1649
[27] General review of ground-source heat pump systems for heating and cooling of buildings
Sarbu, Ioan
Sebarchievici, Calin
ENERGY AND BUILDINGS, 2014, 70 : 441 - 454
[28] GROUND-SOURCE HEAT-PUMP SYSTEMS
CALM, J
ASHRAE JOURNAL-AMERICAN SOCIETY OF HEATING REFRIGERATING AND AIR-CONDITIONING ENGINEERS, 1983, 25 (05): : 59 - 59
[29] Exergetic performance assessment of a ground-source heat pump drying system
Kuzgunkaya, Ebru Hancioglu
Hepbasli, Arif
INTERNATIONAL JOURNAL OF ENERGY RESEARCH, 2007, 31 (08) : 760 - 777
[30] Application of ground-source heat pump and floor heating system to greenhouse heating in winter
Fang, Hui
Yang, Qichang
Sun, Ji
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering, 2008, 24 (12): : 145 - 149

← 1 2 3 4 5 →