A two-stage system of nocturnal radiative and indirect evaporative cooling for conditions in Tehran

被引：63

作者：

Farahani, Moien Farmahini ^{[1
]}

Heidarinejad, Ghassem ^{[1
]}

Delfani, Shahram ^{[2
]}

机构：

[1] Tarbiat Modares Univ, Dept Mech Engn, Tehran, Iran

[2] BHRC, Tehran, Iran

来源：

ENERGY AND BUILDINGS | 2010年 / 42卷 / 11期

关键词：

Nocturnal radiative cooling; Indirect evaporative cooling; Cooling coil; Two-stage cooling systems; PERFORMANCE;

D O I：

10.1016/j.enbuild.2010.07.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, the results of an investigation on a two-stage cooling system have been studied. This system consists of a nocturnal radiative unit, a cooling coil, and an indirect evaporative cooler. During the night in summer, requisite chilled water for a cooling coil unit is provided by nocturnal radiative cooling and is stored in a storage tank. During the next day, the water in the tank provides chilled water for the cooling coil unit and hot outdoor air passes through two-stages: the cooling coil unit and an indirect evaporative cooler. Three sources provide secondary air for the indirect evaporative cooler. The sources are outdoor air, the air leaving from the cooling coil, and the air leaving from the indirect stage (regenerative). The investigation has been conducted in weather conditions in the city Tehran. The results obtained demonstrate that the first stage of the system increases the effectiveness of the indirect evaporative cooler. Also, the regenerative model provides the best comfort conditions. Therefore, this environmentally friendly and energy-efficient system can be considered as an alternative to the mechanical vapor compression systems. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2131 / 2138

页数：8

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