基于动态环境及变负荷的改进空调设备季节性能测量方法探讨

Dynamic environment and load-based seasonal performance testing procedures for air conditioning systems

随着产业和技术发展,中国对空调设备的性能考核已从额定工况的“点”评价发展为季节性能的“综合”评价,即通过在给定有限室内外工况的稳态运行测量结果,根据发生时间分布计算获得季节性能指标。然而,现有方法无法反映空调器等直膨式空调设备的调节控制品质,为此,给出基于动态环境及变负荷的改进空调季节性能测量方法(简称:基于负荷的季节性能测量法),其核心在于:在空调设备性能实验室内,在一定的测量时段内,用室外侧模拟空调设备运行的室外工况,而在室内侧投入与室外工况相对应的热、湿负荷,用空调设备将室内温、湿度控制在规定的工况和精度范围内,并测量空调设备在测量时段内的运行性能。根据室内负荷的给定方式,可分为静态补偿法和动态补偿法两种方式,对两种测试方法进行介绍和辨析,并对其适用性进行分析。

With the advancement of industry and technology,the evaluation of air conditioner performance in China has transitioned from a"point"assessment based on rated operating conditions to a more"comprehensive"evaluation of seasonal performance.This evaluation takes into account the seasonal performance factors by analyzing the distribution of bin-hours through steady-state measurements conducted under limited indoor and outdoor working conditions.However,the existing methods fail to adequately reflect the dynamic control quality of direct expansion air conditioning equipment,such as air conditioners.To address this issue,proposes an enhanced method for dynamic environment and load-based seasonal performance testing,referred to as the load-based seasonal performance testing method.The core principle of this method involves simulating the outdoor conditions of air conditioning equipment over a specific measurement period within a performance laboratory.On the indoor side,heat and humidity loads corresponding to the outdoor operating conditions are applied,and the test air conditioning equipment is utilized to maintain the indoor temperature and humidity within the specified operating conditions and accuracy range.Based on the indoor load compensation method,two distinct approaches can be distinguished:the static compensation method and the dynamic compensation method.Presents a thorough examination and analysis of these two testing methods and their respective applicability.