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Energy Consumption and Stability Investigation of Constant Temperature and Humidity Test Chamber

机译：恒温恒湿试验箱的能耗和稳定性研究

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摘要

Temperature and humidity chambers are used to simulate many thermal-environmental conditions, as well as to observe the effects that a range of temperature and humidity have on a product or material at the manufacturing stage.The energy consumption and accuracy of these test chambers over the last decades have raised concerns for recent researchers.In this study, the energy consumption and stability of a temperature and humidity chamber was investigated under various operating and environmental conditions by adopting a variable speed compressor to the refrigeration unit.The accuracy of temperature and humidity was also investigated.It is found that, for a given surrounding environmental condition, as the dry bulb temperature conditions of the temperature and humidity chambers increased, the cooling capacity of the system increased while the refrigerating unit's power decreased for all operating conditions.However, the total energy consumption of the test unit increased due to an increment in the electric heater output.In maintaining effective stability of temperature and humidity test chambers, it is observed that, varying the refrigeration unit capacity by adjusting compressor speed has the potential for reducing the temperature and relative humidity fluctuations within the chamber for a given operating condition.Adopting a variable speed compressor to the refrigerating unit, have the potential for reducing the energy consumption significantly according to increment of setting temperature of the chamber as well as ensuring system stability for temperature and humidity chambers.
机译：温湿度箱用于模拟许多热环境条件，并在制造阶段观察温度和湿度范围对产品或材料的影响。在整个测试过程中，这些测试箱的能耗和准确性近几十年来，最近的研究人员对此表示了担忧。在这项研究中，通过在制冷机组中采用变速压缩机，研究了在各种运行和环境条件下温湿度箱的能耗和稳定性。研究发现，在给定的周围环境条件下，随着温湿度箱的干球温度条件增加，系统的制冷量增加，而在所有运行条件下制冷机组的功率均下降。由于增加，测试单元的总能耗增加在保持温度和湿度测试室的有效稳定性时，可以观察到，通过调节压缩机速度来改变制冷机组的容量，对于给定的运行，有可能减少室内温度和相对湿度的波动。在冷藏单元中采用变速压缩机，具有根据腔室设定温度的增加显着降低能耗的潜力，并能确保恒温恒湿腔室的系统稳定性。

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