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1、课程设计重庆市公司办公楼空调及冷热源工程1资料内容仅供参考，如有不当或者侵权，请联系本人改正或者删除。重庆市某公司办公楼空调及冷热源工程设计说明书一空调设计1.办公楼空调负荷计算( 以三楼 15 号房为例 )( 1) 热负荷已知参数 : 外表面 h=23.26w/ (夏), h=18.56 w/ ( 冬)内表面 h=8.72 w/ 冬季 : 室内 18, 40% 室外 2, 82%夏季 : 室内 26, 60% 室外 36.5( 干 ) 27.3( 湿 )北外墙Fb =3.9 3.3-1.5 1.5=10.62 K b =1/( 1/18.56+0.02/0.93+0.04/0.04+0.02
2、/0.93+0.2/0.69+0.02/0.93+1/8.72)=0.657 w/ Qb =KF(tn-tw)a=112.15W北外窗Fbc =1.51.5=2.25 K bc =3.5 w/ 故 Q bc = K bc Fbc (tn-tw)a=126W冷风渗透耗热量( 采用换气次数法)Vn=( 3.9-0.125) 3.1 4.6=53.8m3 ,nk=1/4, w=1.34,cp=1Qbc =0.278 1/453.8 11.34(18-2)=80.2W2资料内容仅供参考，如有不当或者侵权，请联系本人改正或者删除。南内墙Fn=3.3 3.9-0.9 2.1=10.98 Kn=1/(1/8
3、.92+0.02/0.93+0.2/0.54+0.02/0.93+1/8.72)=1.56取 a=0.7 Qn=1.5610.98160.7=191.8W屋面Fm=16.17 ,K=0.649Qw=0.649 16.17 16=167.94W冬季总热负荷Q1= Qb +Q bc +Qbc +Qn=678.09 W( 2) 冷负荷已知屋面逐时温差0:301:302:303:304:305:306:307:3010101010111214158:309:3010:3011:3012:3013:3014:3015:30161819191919191816:3017:3018:3019:3020:30
4、21:3022:3023:301817161514131211外墙逐时温差0:301:302:303:304:305:306:307:30555566678:309:3010:3011:3012:3013:3014:3015:3088991010101016:3017:3018:3019:3020:3021:3022:3023:30109987766外窗逐时温差0:301:302:303:304:305:306:307:30544433448:309:3010:3011:3012:3013:3014:3015:303资料内容仅供参考，如有不当或者侵权，请联系本人改正或者删除。567889991
5、6:3017:3018:3019:3020:3021:3022:3023:3096877655屋面K=1/(1/23.26+0.02/0.93+0.05/0.04+0.02/0.93+0.1/1.94+0.02/0.93+1/8.72)=0.654F=16.17 屋面逐时冷负荷Qwl0:301:302:303:304:305:306:307:30190.35190.35179.78169.2158.63148.05137.48126.98:309:3010:3011:3012:3013:3014:3015:30116.33105.75105.75105.75105.75116.33126.91
6、48.0516:3017:3018:3019:3020:3021:3022:3023:30158.63169.2190.35200.93200.93200.93200.93200.93外墙K=1/(1/23.26+0.02/0.93+0.04/0.04+0.02/0.93+0.2/0.69+0.02/0.93+1/8.92)=0.661F=10.62 外墙逐时冷负荷Qql0:301:302:303:304:305:306:307:3063.1856.1856.1649.1449.1442.1242.1235.18:309:3010:3011:3012:3013:3014:3015:3035.1
7、35.142.1242.1242.1249.1456.1656.1616:3017:3018:3019:3020:3021:3022:3023:3063.1863.1870.270.270.270.270.263.18外窗K=3.5, F=2.25 外窗逐时传热冷负荷Qcc0:301:302:303:304:305:306:307:304资料内容仅供参考，如有不当或者侵权，请联系本人改正或者删除。39.3831.531.531.523.6324.427.5633.088:309:3010:3011:3012:3013:3014:3015:3039.3842.2653.5659.8664.586
8、8.5270.8871.6716:3017:3018:3019:3020:3021:3022:3023:3070.145.6862.2256.7151.1946.4741.7437.8窗户有效面积系数Xg=0.75, 遮挡系数 Cs=0.74,遮阳系数 Cn=0.6冷负荷强度 Jz0:301:302:303:304:305:306:307:30171412109651718:309:3010:3011:3012:3013:3014:3015:30759110511512112412311716:3017:3018:3019:3020:3021:3022:3023:301071069647363
9、02420外窗逐时日射冷负荷Qcs0:301:302:303:304:305:306:307:3010.498.997.496.744.4938.2153.256.198:309:3010:3011:3012:3013:3014:3015:3068.1878.6786.1690.6692.9192.1687.6680.1716:3017:3018:3019:3020:3021:3022:3023:3079.4271.9335.2126.9722.4817.9814.9612.74南内墙F=10.98 , K=1.56, twp=32.5, tls=1,tn=26Q=1.5610.98(32.5
10、+1-26)=128.47W照明散热 ( 取一盏 36W 荧光灯 , 镇流器 4W)Qd=100n1n2p=1.20.6 40=28.8W人体散热n=2 ,n =0.93,q=134W/ 人Qr=nnq=249.24W5资料内容仅供参考，如有不当或者侵权，请联系本人改正或者删除。人体冷负荷系数18:3019:3020:3021:3022:3023:300.510.70.760.80.80.830:301:302:303:304:305:306:300.860.880.90.910.930.940.48人体与照明冷负荷0:301:302:303:304:305:306:307:30150.04153.53158.77162.2616483.7450.5940.138:309:3010:3011:3012:3013:3014:3015:30124.62124.62124.62124.62124.62124.62124.62124.6216:3017:3018:3019:3020:3021:3022:3023:30124.62124.62117.78150.93161.39168.37168.37144.81夏季总冷负荷0:301:302:303:304:305:306:307:30581.91569555.15547.31521.34464.34
