技术中心

【英文篇名】 Numerical research on effects of outside unit placement on unit performances for variable refrigerant volume air conditioning systems in multi-storied buildings 【作者中文名】 革非; 毕海权; 雷波; 徐明; 【作者英文名】 Ge Fei; Bi Haiquan; Lei Bo and Xu Ming Southeast Jiaotong University; Chengdu; China; 【作者单位】 西南交通大学; 中国建筑西南设计研究院 中国建筑西南设计研究院; 【文献出处】 暖通空调, Heating Ventilating 室外机; 性能; 数值计算; 【英文关键词】 variable refrigerant volume air conditioning system; outside unit; performance; numerical calculation; 【摘要】 基于不可压缩黏性流体N-S方程和K-ε两方程湍流模型,采用有限容积法对某工程变制冷剂流量空调室外机周围流场进行了数值计算,得到了室外机周围的气流速度和温度分布及室外机的进风温度,分析了多层建筑中室外机安放条件对空调系统性能的影响。结果表明,变制冷剂流量空调室外机进、排风口不宜同侧布置,如果因建筑条件限制只能同侧布置时,同一设备阳台上室外机数量应少于4台。根据研究结果及实际建筑条件改进和优化了空调室外机安放设计。 【英文摘要】 Based on the N-S equation of the incompressible viscous fluid and K-εturbulent model, simulates the air distribution around outside units using the finite volume method, obtains the distribution of temperature and velocity around outside units and the inlet temperature of outside units. and analyses the effects of outside unit placement on the performances. As a result, it is unsuitable to place the inlet and outlet of outside units on the same side of a balcony, and if necessary because of the building str...