Optimization of hybrid - ground coupled and air source - heat pump systems in combination with thermal storage

被引:70
作者
Pardo, N. [1 ]
Montero, A. [1 ]
Martos, J. [2 ]
Urchueguia, J. F. [1 ]
机构
[1] Univ Politecn Valencia, Dept Fis Aplicada, Valencia 46022, Spain
[2] Univ Valencia, DIE, E-46100 Burjassot, Spain
关键词
Ground coupled heat pump; Air to water heat pump; Thermal storage device; Hybrid HVAC system; Energy efficiency; Numerical simulation;
D O I
10.1016/j.applthermaleng.2010.01.015
中图分类号
O414.1 [热力学];
学科分类号
摘要
Ground coupled heat pumps are attractive solutions for cooling and heating commercial buildings due to their high efficiency and their reduced environmental impact. Two possible ideas to improve the efficiency of these systems are decoupling energy generation from energy distribution and combining different HVAC systems. Based on these two ideas, we present several HVAC configurations which combine the following equipments: a ground coupled heat pump, an air to water heat pump and a thermal storage device. These HVAC configurations are linked to an office building in a cooling dominated area in order to evaluate in these conditions the total electrical consumption of each configuration to obtain which one satisfy the thermal demand more efficiently. The results of our simulations show that the electrical energy consumption obtained when the system employs a suitable configuration is of around the 60% compared with an HVAC system driven by an air to water heat pump and around the 82% compared with an HVAC system driven by a ground coupled heat pump. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1073 / 1077
页数:5
相关论文
共 16 条
[1]  
*ASHRAE RES, 2004, ASHRAE HDB
[2]  
Champsour P., 2000, RECENSEMENT POPULATI, P4
[3]  
Dorgan C., 1993, Design Guide for Cool Thermal Storage
[4]   Need for thermal-storage air-conditioning in Saudi Arabia [J].
Hasnain, SM ;
Alabbadi, NM .
APPLIED ENERGY, 2000, 65 (1-4) :153-164
[5]  
Hellstrom G., 1989, Duct ground heat storage model, manual for computer code
[6]  
*ISO, 1994, 77301994 ISO
[7]   World-wide direct uses of geothermal energy 2000 [J].
Lund, JW ;
Freeston, DH .
GEOTHERMICS, 2001, 30 (01) :29-68
[8]  
LUND JW, 2001, Q B GEO HEAT CTR, V22, P1
[9]   Study on hybrid ground-coupled heat pump systems [J].
Man Yi ;
Yang Hongxing ;
Fang Zhaohong .
ENERGY AND BUILDINGS, 2008, 40 (11) :2028-2036
[10]  
*MIN NAT RES CAN, 2001, GROUND SOURC HEAT PU