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多联机中央空调设计必须要考虑的因素

多联机中央空调设计必须要考虑的因素
2017-01-04 13:51:00来源:中南机电工程有限公司编辑:niuchuang 分享到: 转发到新浪微博 腾讯微博

多联机中央空调设计目的是处理多余的热量,还生活的环境一个舒适。这些导致人体不舒服的热量主要有:通过围护结构传入的热量、透过外窗进入的太阳辐射热量、人体散热量、照明散热量、设备等其他内部热源的散热量、食品或物料的散热量、渗透空气带入的热量、伴随各种散湿过程产生的潜热量。而中央空调的目的就是要将这些导致室内升温、人体不舒适的热量给化掉。这些热量跟房子的结构、设备的性能有关系,但是替换到设计中,我们应该考虑哪些因素?
 一、项目所在地理位置
 春温多变,秋温陡降,冬寒冷而夏酷热且严寒期短,暑热期长
 二、房间朝向
 西向房间负荷应适当加大(冷负荷:西>东>南>北)
 三、房屋层高
 层高超过5米挑空,负荷需要考虑高度附加(1米增加20w/m2)
 四、建筑得热情况
 内区一般比外区房间负荷少10-20w/m2、地下室一般比外区房间负荷少15-20w/m2、顶层一般增加20-30w/m2
 五、是否考虑冬季换热
 冬季制热有需求时,建议具备EVI功能的机组
 六、多联机中央空调系统管道长度
 管道过长,考虑管长修正,增大单位负荷
 七、超配比
 超配时,负荷不小于常规值
 八、远端室内机距离
 接近管长应用要求的最远端室内机,增大单位负荷

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