Refrigeration dehumidification system with membrane-based total heat recovery

LIANG Caihang; ZHANG Lizhi

doi:10.3969/j.issn.0438-1157.2012.z2.028

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Refrigeration dehumidification system with membrane-based total heat recovery

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- Refrigeration dehumidification system with membrane-based total heat recovery
- CIESC Journal Issue S2, Pages: 151-155(2012)
- 作者机构：
  
  1. 桂林电子科技大学建筑与交通工程学院,广西,桂林,541004
  2. 华南理工大学化学与化工学院传热强化与过程节能教育部重点实验室,广东,广州,510640
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.z2.028
  CLC： K124
- Online First：28 December 2012，
  
  Published：28 December 2012
- 稿件说明：
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LIANG Caihang, ZHANG Lizhi. Refrigeration dehumidification system with membrane-based total heat recovery[J]. CIESC Journal, 2012, (S2): 151-155.
DOI：

LIANG Caihang, ZHANG Lizhi. Refrigeration dehumidification system with membrane-based total heat recovery[J]. CIESC Journal, 2012, (S2): 151-155. DOI： 10.3969/j.issn.0438-1157.2012.z2.028.

摘要

基于膜全热回收制冷除湿系统是新风独立系统中的一种高效的除湿系统。该系统由高效透湿膜换热器和制冷除湿系统组成。新风和排风在膜全热换热器中进行热质交换。膜换热器回收排风中的全热

同时降低了新风的温度和含湿量。换热之后新风通过蒸发器进行进一步除湿冷却

然后输送到室内。在本研究中

在焓差实验室对基于膜全热回收的制冷除湿样机进行了变工况下的性能实验。研究了在室内温度27℃

湿球温度19℃的条件下

室外空气温度、相对湿度以及空气流量对该系统的除湿能力和COP的影响。实验结果表明膜全热回收制冷除湿系统在高温高湿条件下具有较高的除湿能力和COP。

Abstract

An independent air dehumidification system is helpful for improving the indoor air quality.Refrigeration dehumidification system with membrane-based total heat recover is the key equipment to realize this goal.The system comprises of two subsystems:membrane total heat recover and refrigeration dehumidifier.The total heat exchanger has a membrane core where the incoming fresh air exchanges moisture and temperature simultaneously with the exhaust air.In this manner

the total heat or enthalpy from the exhaust air is recovered.Then the fresh air flows through a cooling coil where it is dehumidified below the dew point.Finally

the code and dry air are supplied to indoor.A prototype is built in laboratory.Experiments are conducted under variable operating conditions in the enthalpy laboratory.The effects of air flow rates

temperature

and air relative humidity on the air dehumidification rates

cooling capacities

electric power of compressor and COP are investigated under indoor temperature 27℃ and bulk wet-bulb temperature 19℃.The experimental results show that the prototype has a high air dehumidification rates and COP under hot and humid environment.

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