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目前列车空调基本上是定风量运行的,由于列车空调负荷随时间和地点变化,定风量空调系统无法达到令人满意的热舒适性,而且浪费能源。本文通过分析PMV方程的特点,提出以PMV指标作为控制变量的变风量空调系统应用于列车空调,分析该空调系统的控制原理;通过实例计算分析,验证列车使用变风量空调系统的可行性,得到变风量空调系统的节能潜力。
At present, train air-conditioners basically operate in constant air volume. Due to changes in load of air-conditioned train with time and place, constant air-volume air-conditioning systems can not achieve satisfactory thermal comfort and waste energy. In this paper, by analyzing the characteristics of the PMV equation, the paper puts forward the application of VAV with PMV as the control variable to the train air-conditioners and analyzes the control principle of the air-conditioning system. The feasibility of using VAV air- VAV air conditioning system energy saving potential.