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节能检测中发现,依据JGJ/T 177—2009计算的风机单位风量耗功率不满足GB50189—2005的要求。通过理论分析和现场实测,认为两个标准中风机单位风量耗功率计算式的含义相同,但使用前提不同,前者只能在设计选型时使用,后者主要针对空调机组和普通的机械通风系统。不恰当使用计算公式将导致错误结果。
Energy-saving testing found that according to JGJ / T 177-2009 fan unit wind power consumption does not meet the requirements of GB50189-2005. Through theoretical analysis and field measurement, it is considered that the calculation formulas of the power consumption of air volume of the two standard fan units have the same meaning, but the preconditions are different. The former can only be used in the design selection. The latter is mainly aimed at air conditioning units and ordinary mechanical ventilation systems . Improper use of the formula will result in incorrect results.