【作者】 袁恩泽；

【导师】 赵蕾；

【作者基本信息】 西安建筑科技大学 ， 供热、供燃气、通风及空调工程， 2011， 硕士

【摘要】 本文采用实地调研、实测和TRNSYS软件模拟分析相结合的方法,对西安立丰购物广场建筑空调系统运行及能耗情况进行了研究。就外围护结构是否设置保温、人员密度、建筑内部照明、建筑朝向、室内设计温度五个因素对冬、夏两季建筑空调负荷的影响进行了分析。外围护结构是否加设保温对夏季空调供冷量影响不大,但是却严重影响冬季空调供热量,冬季不加保温材料情况下建筑空调供热量为加设保温材料情况的1.72倍。人员密度对商场冬、夏季建筑空调负荷都有较大影响,建筑空调负荷节假日是工作日的1.33倍。由于该建筑照明采用节能灯具与否对商场建筑空调负荷基本没有影响。建筑朝向对于该类窗墙比很小的商业建筑影响较小,在西安地区南北向建筑比东西向建筑更节能。夏季室内空调设计温度取值不同对建筑空调负荷影响程度大于冬季情况。实际调研表明商场人员密度工作日为0.12~0.16人/m~2 ,节假日为0.15~0.21人/m~2 ,远小于0.5~1.5人/m~2的规范规定值,导致空调设计冷量过大,造成制冷机选型过大,使得制冷机冷冻水供回水温差大部分时间处于3~4℃之间,制冷机效率低下。通过模拟得到该商场夏季空调系统部分负荷率主要集中在30%~60%之间,占夏季空调总运行时间的88%,60%以上的情况只有10%,“大马拉小车”情况严重。对该建筑中庭玻璃屋面采取LOW-E玻璃的节能方案,可使中庭温度下降2℃左右,夏季空调供冷量也可减少1.75×10~4 kWh。冬季对该建筑内部区域只输送新风和室内回风的混合风,室温可达到18℃。采取该方案后空调系统冬季供热量可减少9.16×10~4k Wh。更多还原

【Abstract】 This method of actual investigation, measurement and simulation by using TRNSYS were used to analyze the operational conditions and energy consumption of the air conditioning system of Xi’an Li Feng Shopping Plaza. The study is set from the insulation periphery structure,occupant density,interior lighting, building orientation, indoor temperature on winter and summer air conditioning load. Periphery structure of the additional insulation is cooling capacity for air conditioning in summer had little effect, but it seriously affected the air conditioning for heat in winter, the winter situation without air conditioning insulation materials for heat insulation material conditions for the addition of 1.72 times. Personnel density on shopping in winter and summer air conditioning loads have a greater impact, working air conditioning load is 1.33 times that of the holidays and weekends. Since energy-saving lamps,and lighting fixtures in the mall had very less effect on air conditioning load. Building orientation for such a small window and wall construction less affected than in the north and south of Xi’an to the building to the building more energy efficient than anything. Summer indoor design temperature change on the impact of air conditioning load is greater than the winter situation.Shopping personnel density through practical research specifild found that :days 0.12~0.16 person/m~2, holidays 0.15~0.21/m~2, far less than the limiting value 0.5to1.5 person/m~2 [2] leading to excessive cold air conditioning design, resulting in cooler selection is too large, making the cooler chilled water supply and return water temperature in the 3~4℃between the refrigerator and inefficient. Through the simulated part of the mall air-conditioning load in summer mainly concentrated in the 30% rate to 60%, accounting for the total running time of the summer air conditioning to 88%, 60% of the cases only 10%, "big horse cart" in serious condition.Glass House side of the court building to LOW-E glass, energy-saving programs, the court temperature can drop about 2℃. And thus the cooling demond for air-conditioning system can reduce by 1.75×10~4kWh. In the interior zone of the building,only sending the mixture air of fresh air and return air can make temperature reach 18℃.After taking this measure in winter,the amount of heat supplied by the air conditioning system can reduce the 9.16×10~4kWh.更多还原