本文介绍了一种用于热泵和制冷系统测试的新型干湿环境控制气候室的设计和传热计算。一楼空调系统的布局和等级是用来确定的。然后，建立了一个传热模型，以估算当室内空调空间温度低于冰点时，从周围环境进入气候控制室的热量增益。该模型通过文献中的数据进行了验证，还计算了防止水蒸气凝结和随后积聚在设施外墙上的壁厚。结果表明，如果室内温度低于-20°F（28.9°C），根据隔热板的热导率，腔室壁厚在4到5英寸（10.2到12.7厘米）之间。 本文的结果还表明，相对于室内测试设备的容量，空调系统的冷却能力应稍微过大。额外的容量补偿了从周围环境到腔室内部的热传递，这是在低于-20°F（28.9°C）的温度下进行测试时，由大温差驱动的。单位:双引文:ASHRAE交易，第114卷，pt。2、盐湖城2008

This paper presents the design and heat transfer calculations of a new psychrometric environmental control climate chamber for heat pump and refrigeration systems testing. First, the standards for rating air conditioning and refrigeration systems are used to determine layout and floor area of the chamber. Then, a heat transfer model is developed to estimate the heat gain from the surrounding into the climate control chamber when the interior conditioned space is at temperature below freezing. The model, which was validated with data from the literature, also computes the wall thickness that would prevent water vapor condensation and subsequent accumulation on the outside walls of the facility. The results show that if the interior room temperature is below –20°F (–28.9°C), the thickness of the walls of the chamber ranges between 4 to 5 inches (10.2 to 12.7 cm), depending upon the thermal conductivity of the insulation panels. The outcomes of this paper also suggest that the cooling capacity of the conditioning system should be slightly oversized with respect to the capacity of the testing equipment inside the chamber. The additional capacity compensates for the heat transfer gained from the surrounding to the interior of the chamber, which is driven by the large temperature difference during testing at temperature below –20°F (–28.9°C).Units: Dual