基于仿真对比的某办公建筑空调系统改造分析
AnaIysisofairconditioning system renovation in an office buiIding based on simuIation comparison
摘要：
对某办公建筑的老旧空调系统进行改造，比较了冷水机组与多联机 2种改造方案，探讨了人员加班情况对系统选择的影响。首先，对建筑改造区域进行了负荷模拟，针对每种方案进行设备选型。然后，对 2种方案供冷、供暖季的空调系统能耗进行了仿真和比对，多联机系统能耗更低，投资回收期仅 4.6a。最后，针对不同的加班模式和加班率进行了仿真分析，绘制了能耗加班率曲线，发现多联机系统更适用于有人员加班情况出现的建筑。当独立办公室加班率为10%时，改造区域多联机系统的供冷季能耗比冷水机组系统低 41.7%。
Abstract：
In thispaper,the old air conditioning system ofan office buildingisrenovated,two kindsof renovation schemesofwaterchillersandmulti-splitunitsarecompared,andtheinfluenceofstaffovertimeon system selectionisdiscussed.Firstly,theloadsimulationofthebuildingrenovationareaiscarriedout,andthe equipmentselection iscarriedoutforeachscheme.Then,theenergyconsumptionoftheHVAC system ofthe two schemesin the cooling and heating seasons is simulated and compared.The multi-splitsystem has lower energyconsumption andthepaybackperiodisonly4 . 6 a.Finally,basedonthesimulationanalysisofdifferent overtimemodesand overtime rates,the curve of energy consumption and overtime rates is drawn,and itis foundthatthemulti-splitsystem ismoresuitableforthebuildingswithovertimework.whentheovertimerate oftheindependent office is10% , the energy consumption of the multi-split system in the cooling season is 41 . 7% lowerthan thatofthewaterchillersystem.
Keywords:office building;air conditioning renovation;energy consumption;simulation;water chiller; multi-splitunit;overtimerate