Performance analysis and parametric study of thermal energy storage in an aquifer coupled with a heat pump and solar collectors, for a residential complex in Tehran, Iran

被引:54
作者
Ghaebi, H. [1 ]
Bahadori, M. N. [1 ]
Saidi, M. H. [1 ]
机构
[1] Sharif Univ Technol, CEEC, Sch Mech Engn, Tehran, Iran
关键词
Thermal energy storage; Aquifer; Numerical simulation; Solar energy; Heat pump; TRANSIENT TEMPERATURE DISTRIBUTION; NUMERICAL-SIMULATION; SYSTEMS; WELL; MODEL;
D O I
10.1016/j.applthermaleng.2013.09.037
中图分类号
O414.1 [热力学];
学科分类号
摘要
Aquifers are underground porous formations containing water. Confined aquifers are the formations surrounded by two impermeable layers, called cap rocks and bed rocks. These aquifers are suitable for seasonal thermal energy storage. In the present study, a confined aquifer was considered to meet the cooling and heating energy needs of a residential complex located in Tehran, Iran. Three different alternatives were analyzed in this aquifer thermal energy storage (ATES), including: using ATES for cooling alone, for cooling and heating, as a heat pump, and for heating alone, employing flat plate solar energy collectors. A numerical simulation, based on the finite difference method, was carried out for velocity and temperature distributions as well as the heat transfer in the aquifer. The thermal energy recovery factor and the annual coefficient of performance of the system were determined under various schemes of operation, revealing that the combination of the ATES with the heat pump, to meet both cooling and heating needs of the complex, is the best. The study was repeated for different aquifer properties. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:156 / 170
页数:15
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