燃气空调系统应用太阳能节能改造研究

Study of Retrofit Scheme of the Direct-fired Chillers Assist with Solar Collectors

本文通过对某直燃式空调系统的分析后提出了把太阳能热利用和余热回收相结合的太阳能辅助直燃机余热回收空调系统。在建立建筑能耗模拟计算模型的基础上采用EnergyPlus软件得出全年能耗,从而建立以费用年值最小化为目标函数的最优化模型,并分析其用于采暖的可行性。通过Matlab优化计算得出最优化结果,在对结果经济性和火用分析的基础上得出结论。

A new direct-fired chillers assist with solar collectors and waste heat recovery unit is bring forward in order to improve the original system＇s energy efficiency and economy performance after the analysis of direct-fired chillers used in a HVAC system.Based on the geometric model and software of EnergyPlus,calculations of year round cooling and heating loads and energy consumption of the air conditioning system for the buildings have been completed.With the energy consumption data and Matlab,an optimization model,which minimum annual cost is the objective function when used for heating is established to analysis the new system＇s economy.The economy and exergetic efficienc conclusion is given after the optimization calculation.