干热地区水帘幕墙被动式蒸发冷却技术研究
Research on water-curtain wall passive evaporative cooling technology in hot and dry zone
摘要：
干热地区室内水蒸气在分压力差的作用下向室外扩散，且室内外存在一定量的自然通风，二者均会使室内相对湿度降低。提出了适用于干热地区的被动式蒸发冷却技术，通过搭建试验台模型并进行测试，研究了水帘幕墙对室内环境的降温效果，验证了这种降温技术的可行性。分析了在水帘幕墙作用下室内空气的变化过程，并与传统空调方式进行了能效对比，为今后相关设备的优化设计提供理论基础。
Abstract：
Indoor water vapor diffuses outdoors under the action of partial pressure difference in hot and dry zone, and there is a certain amount of natural ventilation in indoor and outdoor air, both of which will reduce the relative humidity of the rooms. The passive evaporative cooling technology suitable for hot and dry zone is proposed, the cooling effect on the indoor environment of the water-curtain wall is studied by building a test bench model and conducting tests, and the feasibility of this cooling technology is verified. The change process of indoor air under the action of water-curtain wall is analysed, and the energy efficiency is compared with that of the traditional air conditioning method, which provides a theoretical basis for the optimization design of related equipment in the future.
Keywords:hot and dry zone; water-curtain wall; passive evaporative cooling; stack effect pressure; water vapor diffusion