曹振,傅允准
CAO Zhen,FU Yunzhun

• 1:上海工程技术大学

摘要(Abstract)：

尽管国内外学者针对温湿度独立控制空调系统的研究很多,然而缺少对双冷源新风除湿机与辐射板联合制冷系统应用于会议室的运行特性的研究,为了研究该系统运行的具体特性,采用试验的方法研究了上海某会议室在该系统运行下室内温度场及其变化情况,除湿机性能以及辐射板内部和表面温度变化情况。试验主要通过温度传感器与温湿度自动记录仪器记录室内不同高度位置、除湿机送风口处及辐射板内部和表面的温度湿度数据,并对测得的数据整理分析。试验结果表明系统运行2 h后机组各项参数都能达到稳定,其中,除湿机送风口温度降到23 ℃,相对湿度降到40%,而室内温度降至26 ℃左右,相对湿度降至53%左右,基本满足室内设计参数要求,并且竖直方向最大温度梯度为0.5 ℃/m,表明室内温度分布均匀,研究同时还发现辐射板表面温度始终高于室内露点温度,辐射板表面不会发生结露现象。研究结果对双冷源新风除湿机与辐射板联合制冷系统供冷除湿效果的深入研究以及该系统在夏热冬冷地区的工程应用具有一定的参考价值。
Although there are many researches on the independent control of air-conditioning systems for temperature and humidity,there are few researches on the operational characteristics of combined refrigeration systems with double cold source fresh air dehumidifiers and radiant panel used in conference rooms.In order to study the specific characteristics of this system in a conference room in Shanghai,the indoor temperature field and changes,the performance of the dehumidifier and the changes in the internal and surface temperature of the radiant panel were studied experimentally.The experimental process is to use the temperature sensor and the temperature and humidity automatic recording instrument to record the temperature and humidity data at different height positions in the room,the air outlet of the dehumidifier and the inside and the surface of the radiant panel after the system is started,and then sort out and analyze the experiment data.The experimental results show that most of the parameters in the room can be stabilized after two hours of operation.The temperature of the air inlet of the dehumidifier dropped to 23 ℃ andthe relative humidity dropped to 40%,whereas the indoor temperature dropped to 26 ℃ and the relative humidity dropped to about53%,which basically meet the requirements of indoor design parameters.The maximum temperature gradient in the vertical direction was 0.5℃/m,indicating the indoor temperature distribution was uniform.In addition,it was found that the surface temperature of the radiant panel was always higher than the indoor dew point temperature,so condensation will not occur on the radiant panel.The research results have certain reference value for in-depth study on cooling and dehumidification effect of the combined refrigeration system with double cold source fresh air dehumidifier and radiant panel and engineering application of the system in areas hot in summer and cold in winter.

关键词(KeyWords)： 双冷源;辐射板;联合制冷;温度分布;结露
double cold source;radiant panel;combined cooling;temperature distribution;condensation

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 曹振,傅允准
CAO Zhen,FU Yunzhun

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