Central air conditioning based on adsorption and solar energy

被引:21
|
作者
Ferreira Leite, Antonio Pralon
Belo, Francisco Antonio [2 ]
Martins, Moacir Machado [3 ]
Riffel, Douglas Bressan [1 ]
机构
[1] Fed Univ Sergipe UFS, Dept Mech Engn, BR-49100000 Aracaju, SE, Brazil
[2] Univ Fed Paraiba, Solar Energy Lab, BR-58051900 Joao Pessoa, Paraiba, Brazil
[3] Fed Inst Pernambuco, BR-50740540 Recife, PE, Brazil
关键词
Adsorption chiller; Activated carbon-methanol; Thermal storage; Solar energy; ICE MAKER; HEAT; REFRIGERATOR; PERFORMANCE; ADSORBENTS;
D O I
10.1016/j.applthermaleng.2010.08.010
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper presents the characterization and the pre-dimensioning of an adsorption chiller as part of a 20 kW air conditioning central unit for cooling a set of rooms that comprises an area of 110 m(2). The system is basically made up of a cold water storage tank supplied by an activated carbon-methanol adsorption chiller, a hot water storage tank, fed by solar energy and natural gas, and a fan-coil. During an acclimatization of 8 h (9-17 h), the following parameters were obtained for dimensioning the cooling system: 504 kg of activated carbon, 180 L of methanol, 7000 L of hot water,10,300 L of cold water with its temperature varying in the fan-coil from 1 degrees C to 14 degrees C. Considering the mean value of the total daily irradiation in Joao Pessoa (7 degrees 8'S, 34 degrees 50'WG), and a cover of regenerating heat supplied by solar energy equivalent to 70%, the adsorption chiller's expected coefficient of performance (COP) was found to be around 0.6. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:50 / 58
页数:9
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