中央空调系统冷负荷模型分析研究与节能设计

Analytical Study on and Energy-saving Design of Cooling Load Mode of Central Air Conditioning System

本文综合运用优化设计,矩阵理论,热力学等相关理论,通过合理的假设和推断,建立了商场人流量与电气设备的冷负荷模型;求解出以进出商场的人流量、外部环境温度为变量的冷负荷的函数方程;进而根据冷负荷需求,提出空调节能的控制策略;并推导出夏季恒定室内温度时的基准冷负荷。最后结合建模过程中的体会和认识以及对模型的客观评价,提出大型商场中央空调控制策略改进的建议。

With the related theory of optimal design,matrix theory,and thermodynamics,this paper tries to construct the visitor＇s flowrate and cooling load mode of electric devices through reasonable hypothesis and inference,in an effort to solve the functional equation of cooling load involving visitor＇s flowrate and external temperature as variables,and puts forward the energy-saving control strategy according to the needs of cooling load.Thus the standard cooling load can be derived for steady summer indoor temperature.Finally,combined with the understanding and objective assessment of the mode,the paper further makes some suggestions about control strategy improvement for the large malls＇ central air conditioning.