Exergetic and sustainability performance comparison of novel and conventional air cooling systems for building applications

被引：65

作者：

Caliskan, Hakan ^{[2
]}

Dincer, Ibrahim ^{[1
]}

Hepbasli, Arif ^{[3
]}

机构：

[1] Univ Ontario, Inst Technol, Fac Engn & Appl Sci, Oshawa, ON L1H 7K4, Canada

[2] Ege Univ, Fac Engn, Dept Mech Engn, TR-35100 Izmir, Turkey

[3] King Saud Univ, Coll Engn, Dept Mech Engn, Riyadh 11421, Saudi Arabia

来源：

ENERGY AND BUILDINGS | 2011年 / 43卷 / 06期

关键词：

Air cooling system; Buildings; Energy; Exergy; Efficiency; HVAC; Maisotsenko cycle; Sustainability; CONDITIONING SYSTEM; SIMULATION; ENERGY; HEAT; VAV;

D O I：

10.1016/j.enbuild.2011.02.006

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study presents energy and exergy analyses and sustainability assessment of one novel and three conventional types of air cooling systems for building applications. First, effectivenesses of the systems are determined using energy analysis method. Second, exergy aspects of the systems are investigated for twelve different dead state temperatures varying from -5 degrees C to 50 degrees C with a temperature interval of 5 degrees C. The specific exergy flows of humid air, dry air and water, exergy efficiency, and specific exergy destruction are then calculated. Sustainability index is also used to define and discuss the systems' sustainability aspects. Finally, the results obtained here show that at the dead state temperatures of higher than 23 degrees C (comfort temperature), exergy efficiency and sustainability of the novel system, which is based on the novel Maisotsenko cycle (M-Cycle), is higher than those of the conventional systems. At a dead state temperature of 50 degrees C, novel cooling system's exergy efficiency can reach 60.329% as the maximum, while the minimum exergy efficiency of other conventional cooling systems becomes as low as 35.866%, respectively. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1461 / 1472

页数：12

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