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1、商场冷负荷计算1.北外墙冷负荷由附录7查得北京市二型外墙冷负荷计算温度逐时值twl,计算出济南市的结果如下表2111:012:013:014:015:16:017:018:19:20:22:23:时间:00:000000000000000000000t r31.31.31.32.3232.32.Lwl31.631.431.331.231.331.433.12681.469td2.3Ka1.00kp0.94twl=(tw31.831.631.531.431.31.531.631.32.32.32.632.33.33.2l+td78894988870534281098)Kakptnx261.5CL
2、=KF1004 967.950.934.934950.43272492.9224(twl-1nx)2.北外窗瞬时传热冷负荷967.9991021()611279：120712392719.638.4池51.心“4根据玻璃内表面传热系数ai=8.7W/(m2 4c),ao=15.82W/(m2 ). 再由附录10查得玻璃窗的传热系数K=5.624W/(m2 k).再由附 录12查得玻璃窗的传热系数修正值为1.00,再由附录13查出 玻璃窗冷负荷计算温度逐时值twl，根据式(3-10)计算结果如 下表：时间twl td11:12:013:014:015:16:017:018:19:00000000
3、0000029.30.831.531.932.32.232.031.30.9268320:022:23:000000029.2928.27.9.1480:0027.2(twl+ 32.33.834.534.9 严 35.23592td)34.33.32.3231.30.30.9.14828.67.86.915.44.84.2nx26/t 6.97.88.98.99.29.29Cw1*5.624=5.624Fwf175233218198175CL 3.91982226222628.5233822876.02.73.9.71.32.32.58.743871345.361371221062.60.1
4、7.64311550.58时间tdkptl=(twl+td)Ka kp3.东外墙冷负荷由附录7查得北京市二型外墙冷负荷计算温度逐时值twl,计算出济南市的结果如下表14:015:16:017:018:000000035.636.36.637.137.152.211:012:013:00 0 0twl 35.035.035.21.000.9434.9 34.97735.162119:20:022:23:0:0000000000037.38.3838.38.38.592.45636 935.5 36.36.4, 37.37.4307326937.38.1 38.9862638.38.2356nxF
5、CL261.563.72=KF857.857.875.910.95510001045 135355188.80.72.667(twl-1nx)4、南外墙冷负荷由附录7查得北京市二型外墙冷负荷计算温度逐时值twl,计算出济南市的结果如下表1111147.35.0.251162 1.71180.411162.2511:012:013:014:015:16:017:018:19:20:21:022:23:时间00000000000000000001丁32.33.34.34.35.36.Lwl33.533.232.932.833.133.435.399497051.60:0036.1Ka1.00kp0
6、.94t1=(tw32.932.732.432.332.1+td913443wKa kp tnxKFCL=KF10661023980.966.980.10.396998.68(tr 32.933.33.34.34.635.378431906261.5102.20100910521121191261325138.66.374.05.77.4.381.8542135.35.434414241439.52.76wl-1 nx)5、南、东外窗和南外门瞬时传热冷负荷根据玻璃内表面传热系数ai=8.7W/(m2 4c),ao=15.82W/(m2 ). 再由附录10查得玻璃窗的传热系数K=5.624W/(
7、m2 k).再由附 录12查得玻璃窗的传热系数修正值为1.00,再由附录13查出 玻璃窗冷负荷计算温度逐时值twl，根据式(3-10)计算结果如 下表：11:时间00:12:013:014:015:16:017:018:19:0000000000020:2122:()0000023:0:000 0twl29.cc c cr L cr c 32.cc c cc c 31.30.29.2928.27.2730.831.531.9232.232.092689.1482td3(t32.3534.33.32.3231.30.30wl+33.834.534.935.23592689.1 482td)tnx
8、/tCw K6.9264.84.27.88.98.99.29.298.61*5.624=5.6247.86.96.15.4wFw61.02236315308294267236209185164144CL26753052305231556.85.77.19.95.56.82.42.36.40.6.55.87.87.7848775421986. 透过北玻璃窗进入日射得热引起冷负荷由附录19中查得单层钢窗有效面积系数Ca=0.85,故窗的有 效面积F w=0.85*45.36=38.56m2。由附录17中查得窗玻璃的 遮阳系数Cs=0.93, 由附录18中查得窗内遮阳设施的遮阳系数 Ci=0.60,于是遮挡系数 Ccs=Cs Ci=0.93 0.60=0.558。再由附 录16查得纬度35度（济南北纬36度58分）时，西向日射得热 因数最大值Dj,max=575W/m2,因济南地区处于北纬27度30分以北，属于北区，故由由附录21查得北区有内遮阳的玻璃窗冷负荷系数逐时值CLQ。用式（3-13）计算逐时进入玻璃窗日射得热引起的热负荷，结果如下表:Dj,maxCcsFwCL11:012:013:014:015:016:017:018:019:20:21:22:23:0:000000000000000000000.10.10.10.10.10.10.810.830.830.7
