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㎡Kb =1/（1/18.56+0.02/0.93+0.04/0.04+0.02/0.93+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 =1.5×1.5=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,ρw=1.34,cp=1Qbc ‵=0.278×1/4×53.8×1×1.34×(18-2)=80.2W南内墙Fn=3.3×3.9-0.9×2.1=10.98㎡Kn=1/(1/8.92+0.02/0.93+0.2/0.54+0.02/0.93+1/8.72)=1.56取 a=0.7 Qn=1.56－10.98－16－0.7=191.8W屋面Fm=16.17㎡,K=0.649 Qw=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0:301:302:303:304:305:306:307:3010101010111214158:309:3010:3011:3012:3013:3014:3015:30161819191919191816:3017:3018:3019:3020:3021:3022:3023:301817161514131211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0:301:302:303:304:305:306:307:30544433448:309:3010:3011:3012:3013:3014:3015:305678899916:3017:3018:3019:3020:3021:3022:3023:3096877655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 Qwl0:301:302:303:304:305:306:307:30190.35190.35179.78169.2158.63148.05137.48126.98:309:3010:3011:3012:3013:3014:3015:30116.33105.75105.75105.75105.75116.33126.9148.0516:3017:3018:3019:3020:3021:3022:3023:30158.63169.2190.35200.93200.93200.93200.93200.93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 Qql0:301:302:303:304:305:306:307:3063.1856.1856.1649.1449.1442.1242.1235.18:309:3010:3011:3012:3013:3014:3015:3035.135.142.1242.1242.1249.1456.1656.1616:3017:...
