Evaluation of liquid dessicant based evaporative cooling cycles for typical hot and humid climates

Heat Recovery Systems and CHP Pub Date : 1994-11-01 DOI:10.1016/0890-4332(94)90032-9

Sanjeev Jain , P.L. Dhar , S.C. Kaushik

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引用次数: 39

Abstract

This communication presents an evaluation of various liquid dessicant cycles for air conditioning in hot and humid climates. Psychometric evaluation of seven potential cycles for achieving standard comfort conditions (25°C/10 g/kg) in rooms has been carried out for 16 typical Indian cities. A computer simulation model is based on the constant effectiveness of heat exchangers (HX)/evaporative coolers (EC) and wet surface heat exchangers (WSHE). The absorber-cum-dehumidifier is assumed to provide air at the specified humidity level, while the outlet air temperature is taken to be equal to the cooling water temperature. The effect of various outdoor conditions and the effectiveness of HXs/ECs on cooling COP and volumetric air flow rate per unit cooling capacity have been investigated. It was found that a combination of dehumidifier and WSHE is better, in terms of COP, for a wide range of outdoor conditions. The results should be useful in the design of liquid dessicant based air conditioning systems suitable for the monsoon season in tropical countries like India.

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典型湿热气候下基于液体干燥剂的蒸发冷却循环的评价

本通讯提出了各种液体干燥剂循环在炎热和潮湿气候的空调的评估。在16个典型的印度城市中，对达到房间标准舒适条件(25°C/10 g/kg)的七个潜在循环进行了心理测量评估。基于热交换器(HX)/蒸发冷却器(EC)和湿表面热交换器(WSHE)的恒定效率建立了计算机模拟模型。假设吸收-除湿器提供指定湿度水平的空气，同时取出风口温度等于冷却水温度。研究了不同室外条件和HXs/ ec对制冷COP和单位制冷量风量的影响。研究发现，除湿机和WSHE的组合在COP方面更好，适用于广泛的室外条件。研究结果将有助于设计适合印度等热带国家季风季节的液体干燥剂空调系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Heat Recovery Systems and CHP

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