This paper presents the design of a testing facility at Oklahoma State University that enables performance testing of commercial-sized air to refrigerant heat exchanger coils. The closed-loop facility contains the necessary equipment to condition the air supplied to the tested coil. This includes the glycol conditioning system for the air conditioning heat exchangers, fans, electric heaters, and a steam humidification system. The design is compliant with multiple ASHRAE standards; the airflow measurement apparatus is compliant with both, Standard 41.2 (1987 and 2018). The test section's cross section is 2.13 m wide by 2.44 m tall with a maximum airflow rate of 3.78 m³ s⁻¹. The thermal model presented in this paper predicts a maximum capacity of 80.9 kW for air heating coils (e.g. refrigerant condensers) at an air inlet temperature of 19.4 °C. The specified air flowrate and facility's maximum flowrate limit the capacity of air cooling (e.g. refrigerant evaporators) to a range of achievable values. The facility will operate over an air temperature range of −17.8 °C to 60 °C. Future work includes completion of construction of the facility including physical assembly, assembly of psychrometers, and commissioning of the developed facility control software.

本文介绍了俄克拉荷马州立大学测试设备的设计，该设备可以对商用尺寸的空气至制冷剂热交换器盘管进行性能测试。闭环设备包含必要的设备，以调节供应到测试线圈的空气。这包括用于空调热交换器，风扇，电加热器和蒸汽加湿系统的乙二醇调节系统。该设计符合多个ASHRAE标准；气流测量设备同时符合标准41.2（1987和2018）。测试部分的横截面为2.13 m宽x 2.44 m高，最大气流速率为3.78 m ³ s ^-1。本文介绍的热模型预测在进气温度为19.4°C时，空气加热盘管（例如制冷剂冷凝器）的最大容量为80.9 kW。指定的空气流量和设备的最大流量将空气冷却（例如制冷剂蒸发器）的能力限制在可达到的范围内。该设施将在−17.8°C至60°C的气温范围内运行。未来的工作包括完成设施的建设，包括物理组装，干湿计的组装以及已开发设施控制软件的调试。