新民用建筑暖通規(guī)范下的冷熱負(fù)荷計(jì)算-20140525

新民用建筑暖通設(shè)計(jì)規(guī)范下的冷熱負(fù)荷計(jì)算（案例）

——GB50736-2012冬季熱負(fù)荷（見規(guī)范5.2節(jié)）圍護(hù)結(jié)構(gòu)的耗熱量；加熱由外門、窗縫隙滲入室內(nèi)的冷空氣耗熱量；加熱由外門開啟時經(jīng)外門進(jìn)入室內(nèi)的冷空氣耗熱量；通風(fēng)耗熱量；通過其他途徑散失或獲得的熱量。夏季逐時冷負(fù)荷（見規(guī)范7.2節(jié)）通過圍護(hù)結(jié)構(gòu)傳入的熱量；通過透明圍護(hù)結(jié)構(gòu)進(jìn)入的太陽輻射熱量；人體散熱量；照明散熱量；設(shè)備、器具、管道及其他內(nèi)部熱源的散熱量；食品或物料的散熱量；滲透空氣帶入的熱量；伴隨各種散濕過程產(chǎn)生的潛熱量。如何查表先通過表H.0.1-5查到外墻類型外墻如何查表先通過表H.0.1-3查到外墻類型外墻屋面查P244-表H.0.1-6實(shí)例——建筑平面圖圍護(hù)結(jié)構(gòu)的構(gòu)成材料及熱工性能指標(biāo)1）屋面屋面類型及熱工性能指標(biāo)（由外到內(nèi)）類型材料名稱厚度（mm)密度（kg/m3)導(dǎo)熱系數(shù)[W/(m.K)]熱容[J/(kg.K)]傳熱系數(shù)[J/(kg.K)]衰減延遲（h)3細(xì)石混凝土4023001.519200.490.1612.3防水卷材49000.231620水泥砂漿2018000.931050擠塑聚苯板35300.0421380水泥砂漿2018000.931050水泥爐渣2010000.023920鋼筋混凝土12025001.74920圍護(hù)結(jié)構(gòu)的構(gòu)成材料及熱工性能指標(biāo)2）外墻外墻類型及熱工性能指標(biāo)（由外到內(nèi)）類型材料名稱厚度（mm)密度（kg/m3)導(dǎo)熱系數(shù)[W/(m.K)]熱容[J/(kg.K)]傳熱系數(shù)[J/(kg.K)]衰減延遲（h)1水泥砂漿2018000.9310500.560.349.1擠塑聚苯保溫板20300.031380加氣混凝土砌塊2007000.22837水泥砂漿20018000.931050圍護(hù)結(jié)構(gòu)的構(gòu)成材料及熱工性能指標(biāo)3）外窗外窗熱工性能指標(biāo)（由外到內(nèi)）（資料來源：鴻業(yè)負(fù)荷軟件）名稱材料名稱厚度（mm)密度（kg/m3)導(dǎo)熱系數(shù)[W/(m.K)]熱容[J/(kg.K)]傳熱系數(shù)[J/(kg.K)]衰減延遲（h)雙層5mm外窗平板玻璃525000.768403.07-0.4熱流水平（垂直）121.1640.0831.013平板玻璃525000.76840外門熱工性能指標(biāo)（由外到內(nèi)）（資料來源：鴻業(yè)負(fù)荷軟件）名稱材料名稱厚度（mm)密度（kg/m3)導(dǎo)熱系數(shù)[W/(m.K)]熱容[J/(kg.K)]傳熱系數(shù)[J/(kg.K)]衰減延遲（h)雙層金屬門建筑鋼材2785058.24803.06-0.3礦棉巖棉玻璃棉氈140151400.0451.34建筑鋼材2785058.24804）外門圍護(hù)結(jié)構(gòu)逐時冷負(fù)荷屋頂計(jì)算時刻123456789101112131415161718192021222324twlm46.245.845.344.844.243.64342.441.841.34140.940.941.341.742.443.34444.745.445.946.346.546.4tn26K0.73F17.55CLwm258.7923253.6677247.262240.8562233.1693225.4824217.7955210.1086202.4217196.016192.1725190.8914190.8914196.016201.1406210.1086221.639230.607239.5751248.5431254.9489260.0735262.6358261.3546

北外墻計(jì)算時刻123456789101112131415161718192021222324twlq3534.634.334.133.833.633.433.233.233.233.333.533.633.934.134.434.734.935.235.435.535.535.535.7tn26Kq10.83F10.35CLwq177.314573.878371.3011569.5830567.005965.287863.569761.851661.851661.851662.7106564.4287565.287867.8649569.5830572.160274.7373576.4554579.032680.750781.6097581.6097581.6097583.32785圍護(hù)結(jié)構(gòu)逐時冷負(fù)荷北外窗太陽輻射得熱計(jì)算時刻123456789101112131415161718192021222324Cclc0.180.170.150.140.170.290.380.440.480.550.620.670.70.710.690.690.650.580.390.340.30.260.240.21Cw1Cn0.5Cs0.79Djmax157Fc北1.8CLc20.0928618.9765916.7440515.6277818.9765932.3718342.4182649.1158853.5809661.3948569.2087474.7900978.138979.2551777.0226377.0226372.5575564.7436643.5345337.9531833.488129.0230226.7904823.44167

北外窗傳熱逐時冷負(fù)荷計(jì)算時刻123456789101112131415161718192021222324twlc30.930.630.330.13030.230.731.43232.633.333.934.334.634.634.534.333.933.332.732.331.931.531.2tn26Kq23.07F1.8CLwc27.077425.419623.761822.656622.10423.209225.972229.840433.15636.471640.339843.655445.865847.523647.523646.97145.865843.655440.339837.024234.813832.603430.39328.7352

北外門（按外墻逐時冷負(fù)荷計(jì)算溫度）計(jì)算時刻123456789101112131415161718192021222324twlq3534.634.334.133.833.633.433.233.233.233.333.533.633.934.134.434.734.935.235.435.535.535.535.7tn26Kq33.06F1.89CLwq252.050649.7372448.0022246.8455445.1105243.9538442.7971641.6404841.6404841.6404842.2188243.375543.9538445.6888646.8455448.5805650.3155851.4722653.2072854.3639654.942354.942354.942356.09898室內(nèi)熱源散熱逐時冷負(fù)荷人體散熱逐時冷負(fù)荷（按辦公建筑工作時間8:00-18:00設(shè)計(jì)）時刻123456789101112131415161718192021222324Cclrt00000000.470.790.840.860.880.90.910.920.930.940000000Qxr61Qqr73Φ0.98n2Qcl143.08143.08143.08143.08143.08143.08143.08199.2732237.5324243.5104245.9016248.2928250.684251.8796253.0752254.2708255.4664143.08143.08143.08143.08143.08143.08143.08

照明散熱逐時冷負(fù)荷（按辦公建筑工作時間8:00-18:00設(shè)計(jì)）時刻123456789101112131415161718192021222324Cclzm00000000.40.720.780.810.830.860.870.890.90.920000000Czm1Qzm415.5102n11.2n20.7CLzm0000000139.6114251.3006272.2423282.7131289.6937300.1646303.6549310.6354314.1257321.10630000000室內(nèi)熱源散熱逐時冷負(fù)荷設(shè)備散熱逐時冷負(fù)荷（按辦公建筑工作時間8:00-18:00設(shè)計(jì)）時刻123456789101112131415161718192021222324Cclsb00000000.780.910.930.940.950.960.960.970.970.970000000Csb1Qsb461.678n10.8n20.6n31CLsb0000000172.8522201.661206.0931208.3091210.5252212.7412212.7412214.9573214.9573214.95730000000

小計(jì)時刻123456789101112131415161718192021222324人體143.08143.08143.08143.08143.08143.08143.08199.2732237.5324243.5104245.9016248.2928250.684251.8796253.0752254.2708255.4664143.08143.08143.08143.08143.08143.08143.08照明0000000139.6114251.3006272.2423282.7131289.6937300.1646303.6549310.6354314.1257321.10630000000設(shè)備0000000172.8522201.661206.0931208.3091210.5252212.7412212.7412214.9573214.9573214.95730000000總計(jì)143.08143.08143.08143.08143.08143.08143.08511.7369690.4939721.8457736.9239748.5117763.5898768.2757778.6679783.3538791.53143.08143.08143.08143.08143.08143.08143.08夏季空調(diào)逐時冷負(fù)荷夏季匯總時刻1234567891011121314151617181920212223