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第1章工程概述一、建筑概况本子项为吉安某公司办公楼空调系统设计,地上共3层,其中第一层建筑面积为824.62㎡,二层建筑面积为798.72㎡,三层建筑面积为867.2㎡。建筑结构中外墙(序号44)、内墙(序号2)、屋面(序号2),外窗都无任何遮阳,外窗为玻璃单框双层塑钢窗,窗框比约30%。二、室内外设计参数1.室外设计参数查《实用供热空调设计手册第二版》吉安市夏季空调室外计算日平均温度:twp=31.9℃纬度:27.93度分经度:114.55度分大气压力:冬季1015.8pa夏季996.1pa室外计算干球温度:夏季通风33.5℃室外计算湿球温度27.7℃2.室内设计参数查《简明空调设计手册》三、主要参考资料[1]GB50019-2003,采暖通风与空气调节设计规范[S].[2]GB/T50114-2001,暖通空调制图标准[S].[3]陆耀庆.实用供热空调设计手册[M].北京:中国建筑工业出版社,1993.[4]赵荣义.简明空调设计手册[M].北京:中国建筑工业出版社,1998.[5]建筑工程常用数据系列手册编写组.暖通空调常用数据手册[M].第二版,北京:中国建筑工业出版社,2002.[6]杨昌智,刘广大,李念平.暖通空调工程设计方法与系统分析[M].北京:中国建筑工业出版社,2005.[7]李娥飞.暖通空调设计与通病分析[M].第二版,北京:中国建筑工业出版社,2004.[8]赵荣义等.空气调节[M].第四版,北京:中国建筑工业出版社,2009.[9]黄翔.空调工程[M].北京:机械工业出版社,2006.第2章冷热负荷计算2.1第一层冷负荷的计算一、进行房间编号(各层编号竖向统一,编号用三位数字,首位数表示层数),见平面图.由于室内压力稍高于室外,不存在室外空气渗透问题,故不需考虑由于外气渗透所引起的冷负荷。二、准备工作(1)围护结构的夏季热工指标各围护结构的夏季热工指标从《空气调节》附录2-9查到,结果列入下表。主要围护结构的夏季热工指标围护结构名称KβξVf备注外墙44号1.950.358.52屋面2号0.90.3792.1浅色表面内墙2号2.010.417.11.9外窗2.86查表20.4-2;;K=2..6,a=1..10(2)房间的分类查《空气调节》附录2-9,内墙(序号2)的放热衰减度Vf=1.9,楼板的放热衰减度Vf=1.52~1.8之间,查表2-8可知该房间类型属于中型。(3)城市的分组根据《实用供热空调设计手册第二版》中表20.2-7,与吉安地理位置较近的南昌属于以上海为代表城市的那一组,计算外墙、屋面、玻璃窗辐射等负荷项目时,应查上海的有关表格,并注意根据计算项目的不同加以修正。但确定玻璃窗温差传热的冷负荷时,应直接查表20.4-1并按表注的方法进行修正。三、101房间的冷负荷计算1.温差传热形成的冷负荷以101房间为例,各项温差传热冷负荷的计算过程及计算结果列入下表:各项温差传热的的逐时冷负负荷计算项目计算时刻备注89101112131415161718西北外墙τ-ε-0.50.51.52.53.54.55.56.57.58.59.5tτ-ε34.53433.5333333333333.53434.5查表20.3-1K1.951.951.951.951.951.951.951.951.951.951.95F10.1210.1210.1210.1210.1210.1210.1210.1210.1210.1210.12△11111111111tn2626262626262626262626Qτ=KF(t+△△-tn))187.47177.61167.74157.87157.87157.87157.87157.87167.74177.61187.47西南外墙tτ-ε34.53433.53333333333.53434.535.5查表20.3-1K1.951.951.951.951.951.951.951.951.951.951.95F22.6822.6822.6822.6822.6822.6822.6822.6822.6822.6822.68△11111111111tn2626262626262626262626Qτ=KF(t+△△-tn))420.15398.03375.92353.81353.81353.81353.81375.92398.03420.15464.37外窗(西北)tτ3132323334343435343434查表20.4-1a1.11.11.11.11.11.11.11.11.11.11.1K2.62.62.62.62.62.62.62.62.62.62.6tn2626262626262626262626F55555555555Qτ=aKF(t--tn)71.585.885.8100.1114.4114.4114.4128.7114.4114.4114.4101房间冷负负荷小计∑Qτ679.12661.44629.46611.78626.08626.08626.08662.49680.17712.15766.25102房间冷负负荷小计∑Qτ258.97263.41253.54257.97272.27272.27272.27286.57282.14292.01301.872.透过玻璃窗太阳辐射形成的冷负荷透过玻璃窗太阳辐射形成的冷负荷计算过程见下表:透过玻璃窗的太太阳辐射逐逐时冷负荷荷计算计算项目计算时刻89101112131415161718西北窗F55555555555Xg0.540.540.540.540.540.540.540.540.540.540.54Xd1.091.091.091.091.091.091.091.091.091.091.09Jwτ597589101110116143192242268254Qτ=FXgXdJJwτ173.64220.73261.93297.24323.73341.39420.85565.06712.21788.72747.523.室内发热量形成的冷负荷室内热源形成的冷负荷计算过程见下表。其中人体单位显热散热量可以从表20.7-3查到:q1=61W.由于缺少数据根据空调区的使用面积按表20.7-1给出的人均面积指标推算:普通办公室n=F/4;会议室n=F/2.5;走廊n=F/50;其他n=F/20,群集系数φ=0.9。Qτ=φnq1Xτ-T。室内发热量形成成的冷负荷荷计算计算项目计算时刻89101112131415161718人体φ==0.9n=44.86q11=61上午T=8连续工作作小时数=4τ-T012345678910Xτ-T0.480.670.730.780.350.180.140.110.090.080.06φ0.90.90.90.90.90.90.90.90.90.90.9n12.9612.9612.9612.9612.9612.9612.9612.9612.9612.9612.96q16161616161616161616161Qτ1341.52476.71519.4554.97249.03128.0799.6178.2764.0456.9242.69下午T=14连续工工作小时数数=4τ-T01234Xτ-T0.480.670.730.780.35Qτ2341.5476.7519.4555249Qτ=Qτ1+Qτ2341.52476.71519.4554.97249.03128.07441.1555583.4611.9291.7灯光n1=0.8N=2213.884上午T=8连续工作作小时数=4τ-T012345678910Xτ-T0.360.570.650.710.410.230.180.150.120.10.08n10.80.80.80.80.80.80.80.80.80.80.8N12961296129612961296129612961296129612961296Qτ1373.25590.98673.92736.13425.09238.46186.6155.5124.4103.782.94下午T=14连续工工作小时数数=4τ-T01234Xτ-T0.360.570.650.710.41Qτ2373.2591673.9736.1425.1Qτ=Qτ1+Qτ2373.25590.98673.92736.13425.09238.46559.9746.5798.3839.8508冷负荷小计∑QQτ714.771067.71193.31291.1674.11366.531001130113821452799.74.人体潜热冷负荷取φ=0.9,n=4.86,查《实用供热空调设计手册第二版》下册中表20.7-3知,人体潜热散热量q2=73W。人体潜热散热量形成的冷负荷计算Qτ=φnτq2=0.9*4.86*73=319.302W计算结果列入表。5.人体散湿负荷散湿量为房间中的人,取φ=0.9,n=4.86,查《实用供热空调设计手册第二版》下册中表20.7-3知,人体单位散湿量g=109g/h,Dτ=0.001φnτg=0.001*0.9*4.86*109=0.48(kg/h)6.房间总负荷整个房间的全热冷负荷与湿负荷汇总于表。由表可以看出:房间的计算冷负荷为2181W;计算湿负荷为0.48kg/h;对应的计算时刻可为下午17时。101房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷679.12661.44629.46611.78626.08626.1626.08662.49680.17712.15766.25辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷189.66276.28305.97329.58163.5287.37257.8331.29350.51360.78309.46人体潜热负荷319.3319.3319.3319.300319.3319.3319.3319.3319.3房间全负荷1361.71477.71516.71557.91113.3105516241878.12062.221812142.5房间湿负荷0.480.480.480.48000.480.480.480.480.48四、第一层其他房间的全热冷负荷与湿负荷汇总于下表:102、1033、107房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷258.97263.41253.54257.97272.27272.3272.27286.57282.14292.01301.87辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷189.66276.28305.97329.58163.5287.37257.8331.29350.51360.78309.46人体潜热负荷319.3319.3319.3319.300319.3319.3319.3319.3319.3房间全负荷941.571079.71140.71204.1759.527011270.21502.21664.21760.81678.1房间湿负荷0.480.480.480.48000.480.480.480.480.48104房间冷负负荷与湿负负荷汇总房间全负荷1883.12159.42281.52408.2151914022540.43004.43328.33521.63356.3房间湿负荷0.960.960.960.96000.960.960.960.960.96109房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷551.03553.82542.32545.11559.41559.4559.41573.71570.92582.42593.93辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷210.73306.97339.97366.2181.6997.08286.45368.1389.46408.92214.69人体潜热负荷354.78354.78354.78354.7800354.78354.78354.78354.78354.78房间全负荷1290.21436.314991563.31064.8997.91621.51861.62027.42134.81910.9房间湿负荷0.530.530.530.53000.530.530.530.530.53108房间冷负负荷与湿负负荷汇总房间全负荷2058.52350.72476.12604.81607.814742721.13201.43532.93747.83300房间湿负荷1.061.061.061.06001.061.061.061.061.06105房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷519.91524.34514.47518.91533.21533.2533.21547.51543.07552.94562.81辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷189.66276.28305.97329.58163.5287.37257.8331.29350.51360.78309.46人体潜热负荷319.3319.3319.3319.300319.3319.3319.3319.3319.3房间全负荷1202.51340.61401.714651020.59621531.21763.21925.12021.71939.1房间湿负荷0.480.480.480.48000.480.480.480.480.48106房间冷负负荷与湿负负荷汇总房间全负荷2144.12420.42542.42669.1178016632801.43265.43589.33782.63617.2房间湿负荷0.960.960.960.96000.960.960.960.960.96110房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷706.07685.93661.36651.09675.26695704.86753.6783.6818.04877.05辐射负荷473.82626.86703.38697.49623.92553.3512.08473.82432.62379.65320.79室内发热负荷210.73306.97339.97366.2181.6997.08286.45368.1389.46408.92214.69人体潜热负荷354.78354.78354.78354.7800354.78354.78354.78354.78354.78房间全负荷1745.41974.52059.52069.61480.913451858.21950.31960.51961.41767.3房间湿负荷0.520.520.520.52000.520.520.520.520.52111房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷916.31963.1957.911026.31126.611801206.91312.51292.41324.41361.6辐射负荷2283.328943144.730782836.826892667.82639.12525.22283.51930.3室内发热负荷590.04859.53951.911025.3508.74271.8802.061030.71090.51145601.13人体潜热负荷993.38993.38993.38993.3800993.38993.38993.38993.38993.38房间全负荷478357106047.961234472.141415670.15975.75901.55746.34886.4房间湿负荷1.481.481.481.48001.481.481.481.481.48112房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷464.37497.02497.02543.35603.37630.8644.44704.46685.5699.19712.88辐射负荷1535.220312278.92259.92021.517931659.11535.21401.71230.11039.3室内发热负荷421.46613.95679.94732.39363.39194.2572.9736.19778.92817.84429.38人体潜热负荷709.56709.56709.56709.5600709.56709.56709.56709.56709.56房间全负荷3130.63851.54165.44245.22988.3261835863685.43575.73456.72891.1房间湿负荷1.061.061.061.06001.061.061.061.061.06113房间冷负负荷与湿负负荷汇总传热负荷232.19248.51248.51271.67301.68315.4322.22352.23342.75349.6356.44辐射负荷767.61015.51139.511301010.8896.3829.55767.6700.85615.05519.65室内发热负荷96.889148.07166.84181.298.68554.39139.4183.11194.98204.96117.45人体潜热负荷70.9670.9670.9670.960070.9670.9670.9670.9670.96房间全负荷1167.614831625.81653.81411.112661362.11373.91309.51240.61064.5房间湿负荷0.110.110.110.11000.110.110.110.110.11115房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷1215.912821276.81368.41495.715571587.61720.21684.71720.51761.6辐射负荷3050.83909.54284.14207.93847.535863497.33406.732262898.52450室内发热负荷409.09625.19704.42765.09416.67229.7588.6773.11823.25865.37495.9人体潜热负荷299.59299.59299.59299.5900299.59299.59299.59299.59299.59房间全负荷4975.46116.36564.966415759.953725973.16199.66033.557845007.1房间湿负荷0.450.450.450.45000.450.450.450.450.45114房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷1675.71731.41721.618231989.6210121562332.52332.22397.52472.6辐射负荷4328.15475.25872.85561474041743887.53581.53218.22771.92262.7室内发热负荷714.771067.71193.31291.1674.11366.510011301.51381.81451.7799.75人体潜热负荷851.47851.47851.47851.4700851.47851.47851.47851.47851.47房间全负荷75709125.89639.29526.67403.76641789680677783.77472.66386.5房间湿负荷1.271.271.271.27001.271.271.271.271.27102、103、107房间的计算冷负荷为1760.8W;计算湿负荷为0.48kg/h;对应的计算时刻可以为下午17时。104房间的计算冷负荷为3521.6W;计算湿负荷为0.96kg/h;对应的计算时刻可为下午17时。109房间的计算冷负荷为2134.8W;计算湿负荷为0.53kg/h;对应的计算时刻可为下午17时。108房间的计算冷负荷为3747.8W;计算湿负荷为1.06kg/h;对应的计算时刻可为下午17时。105房间的计算冷负荷为2021.7W;计算湿负荷为0.48kg/h;对应的计算时刻可为下午17时。106房间的计算冷负荷为3782.6W;计算湿负荷为0.96kg/h;110房间的计算冷负荷为2069.6W;计算湿负荷为0.52kg/h;111房间的计算冷负荷为6123W;计算湿负荷为1.48kg/h;112房间的计算冷负荷为4245.2W;计算湿负荷为1.06kg/h;113房间的计算冷负荷为1653.8W;计算湿负荷为0.11kg/h;114房间的计算冷负荷为9639.2W;计算湿负荷为1.27kg/h;115房间的计算冷负荷为6641W;计算湿负荷为0.45kg/h。2.2第二层冷负荷的计算一、201房间的冷负荷计算1、以201房间为例,各项温差传热冷负荷的计算过程及计算结果列入下表:各项温差传热的的逐时冷负负荷计算项目计算时刻备注89101112131415161718西北外墙τ-ε-0.50.51.52.53.54.55.56.57.58.59.5tτ-ε34.53433.5333333333333.53434.5查表20.3-1K1.951.951.951.951.951.951.951.951.951.951.95F7.967.967.967.967.967.967.967.967.967.967.96△11111111111tn2626262626262626262626Qτ=KF(t+△△-tn))147.5139.7131.9124.2124.2124.2124.2124.2132140147.5内墙K1.951.951.951.951.951.951.951.951.951.951.95F19.4419.4419.4419.4419.4419.4419.4419.4419.419.419.44twp31.931.931.931.931.931.931.931.931.931.931.9tn2626262626262626262626Q=KF(twwp-tnn)223.7223.66223.7223.7223.7223.7223.7223.7224224223.7外窗(西北)tτ3132323334343435343434查表20.4-1a1.11.11.11.11.11.11.11.11.11.11.1K2.62.62.62.62.62.62.62.62.62.62.6tn2626262626262626262626F55555555555Qτ=aKF(t--tn)71.585.885.8100.1114.4114.4114.4128.7114114114.4201房间冷负负荷小计∑Qτ442.6449.16441.4447.9462.2462.2462.2476.5470478485.52、透过玻璃窗太阳辐射形成的冷负荷计算过程见下表:透过玻璃窗的太太阳辐射逐逐时冷负荷荷计算计算项目计算时刻89101112131415161718西北窗F55555555555Xg0.540.540.540.540.540.540.540.540.540.540.54Xd1.091.091.091.091.091.091.091.091.091.091.09Jwτ597589101110116143192242268254Qτ=FXgXdJJwτ173.64220.73261.93297.24323.73341.39420.85565.06712.21788.72747.523、室内热源形成的冷负荷计算过程见下表:室内发热量形成成的冷负荷荷计算计算项目计算时刻89101112131415161718人体φ==0.9n=44.86q11=61上午T=8连续工作作小时数=4τ-T012345678910Xτ-T0.480.670.730.780.350.180.140.110.090.080.06φ0.90.90.90.90.90.90.90.90.90.90.9n12.9612.9612.9612.9612.9612.9612.9612.9612.9612.9612.96q16161616161616161616161Qτ1341.52476.71519.4554.97249.03128.0799.6178.2764.0456.9242.69下午T=14连续工工作小时数数=4τ-T01234Xτ-T0.480.670.730.780.35Qτ2341.5476.7519.4555249Qτ=Qτ1+Qτ2341.52476.71519.4554.97249.03128.07441.1555583.4611.9291.7灯光n1=0.8N=2213.884上午T=8连续工作作小时数=4τ-T012345678910Xτ-T0.360.570.650.710.410.230.180.150.120.10.08n10.80.80.80.80.80.80.80.80.80.80.8N12961296129612961296129612961296129612961296Qτ1373.25590.98673.92736.13425.09238.46186.6155.5124.4103.782.94下午T=14连续工工作小时数数=4τ-T01234Xτ-T0.360.570.650.710.41Qτ2373.2591673.9736.1425.1Qτ=Qτ1+Qτ2373.25590.98673.92736.13425.09238.46559.9746.5798.3839.8508冷负荷小计∑QQτ714.771067.71193.31291.1674.11366.531001130113821452799.74.人体潜热冷负荷取φ=0.9,n=4.86,查《实用供热空调设计手册第二版》下册中表20.7-3知,人体潜热散热量q2=73W。人体潜热散热量形成的冷负荷计算Qτ=φnτq2=0.9*4.86*73=319.302W计算结果列入表。5.人体散湿负荷散湿量为房间中的人,取φ=0.9,n=4.86,查《实用供热空调设计手册第二版》下册中表20.7-3知,人体单位散湿量g=109g/h,Dτ=0.001φnτg=0.001*0.9*4.86*109=0.48(kg/h)6.房间总负荷整个房间的全热冷负荷与湿负荷汇总于表。201房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷442.62449.16441.39447.93462.23462.2462.23476.53469.99477.76485.52辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷189.66276.28305.97329.58163.5287.37257.8331.29350.51360.78309.46人体潜热负荷319.3319.3319.3319.300319.3319.3319.3319.3319.3房间全负荷1125.21265.51328.61394.1949.488911460.21692.218521946.61861.8房间湿负荷0.480.480.480.48000.480.480.480.480.48二、第二层其他房间的全热冷负荷与湿负荷汇总于下表:202、2033、204、207房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷218.96225.5217.74224.28238.58238.6238.58252.88246.34254.1261.86辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷189.66276.28305.97329.58163.5287.37257.8331.29350.51360.78309.46人体潜热负荷319.3319.3319.3319.300319.3319.3319.3319.3319.3房间全负荷901.561041.81104.91170.4725.83667.31236.51468.51628.41722.91638.1房间湿负荷0.480.480.480.48000.480.480.480.480.48205、2066房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷885.23898.31882.79895.87924.47924.5924.47953.07939.99955.51971.03辐射负荷347.27441.45523.85594.49647.46682.8841.71130.11424.41577.41495室内发热负荷379.31552.55611.94659.15327.05174.7515.61662.57701.03721.55618.91人体潜热负荷638.6638.6638.6638.600638.6638.6638.6638.6638.6房间全负荷2250.42530.92657.22788.1189917822920.43384.437043893.13723.6房间湿负荷0.960.960.960.96000.960.960.960.960.96209房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷513.75516.55505.04507.84522.14522.1522.14536.44533.64545.15556.65辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷210.73306.97339.97366.2181.6997.08286.45368.1389.46408.92214.69人体潜热负荷354.78354.78354.78354.7800354.78354.78354.78354.78354.78房间全负荷1252.913991461.71526.11027.6960.61584.21824.41990.12097.61873.6房间湿负荷0.530.530.530.53000.530.530.530.530.53208房间冷负负荷与湿负负荷汇总房间全负荷2505.82798.12923.43052.12055.119213168.43648.83980.24195.13747.3房间湿负荷1.061.061.061.06001.061.061.061.061.06210房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷603.58589.06568561.24583.3598.8606.58649.7671.98700.8750.69辐射负荷473.82626.86703.38697.49623.92553.3512.08473.82432.62379.65320.79室内发热负荷210.73306.97339.97366.2181.6997.08286.45368.1389.46408.92214.69人体潜热负荷354.78354.78354.78354.7800354.78354.78354.78354.78354.78房间全负荷1642.91877.71966.11979.71388.912491759.91846.41848.81844.21641房间湿负荷0.520.520.520.52000.520.520.520.520.52211房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷661.31721.61717.83787.6874.42900.9914.21004.8957.76974.81995.63辐射负荷2283.328943144.730782836.826892667.82639.12525.22283.51930.3室内发热负荷590.04859.53951.911025.3508.74271.8802.061030.71090.51145601.13人体潜热负荷993.38993.38993.38993.3800993.38993.38993.38993.38993.38房间全负荷45285468.55807.85884.3422038625377.456685566.85396.74520.4房间湿负荷1.481.481.481.48001.481.481.481.481.48212房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷589.151288.91288.91427.91595.316521680.618481765.91794.31822.7辐射负荷2302.83046.53418.43389.83032.226892488.72302.82102.51845.11559室内发热负荷632.19920.921019.91098.6545.08291.2859.351104.31168.41226.8644.06人体潜热负荷1064.31064.31064.31064.3001064.31064.31064.31064.31064.3房间全负荷4588.56320.76791.56980.65172.6463260936319.46101.15930.55090.1房间湿负荷1.591.591.591.59001.591.591.591.591.59213房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷589.151288.91288.91427.91595.316521680.618481765.91794.31822.7辐射负荷2302.83046.53418.43389.83032.226892488.72302.82102.51845.11559室内发热负荷888.331278.51409.51514.8731.85387.31190.21520.516061685.7862.85人体潜热负荷1702.91702.91702.91702.9001702.91702.91702.91702.91702.9房间全负荷5483.27316.87819.78035.45359.447297062.47374.27177.370285947.5房间湿负荷2.542.542.542.54002.542.542.542.542.54214房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷617.82646.68641.5682.64741.26765.8778.11841.92825.34842.81865.47辐射负荷2196.42823.93080.22968.7257922772115.81952.61765.91532.61269.1室内发热负荷561.95818.6906.58976.52484.52258.9763.86981.591038.61090.5572.5人体潜热负荷946.08946.08946.08946.0800946.08946.08946.08946.08946.08房间全负荷4322.35235.35574.45573.93804.833024603.94722.24575.944123653.2房间湿负荷1.411.411.411.41001.411.411.411.411.41215房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷725.19755.83755.83792.61860.37922.3953.331021.11021.41052.41083.4辐射负荷1353.21671.11758.71667.91501136412751190.71087.5959.64811.06室内发热负荷150.72230.33259.52281.87153.5184.61216.85284.83303.3318.82182.7人体潜热负荷110.38110.38110.38110.3800110.38110.38110.38110.38110.38房间全负荷2339.52767.62884.42852.82514.923712555.626072522.62441.22187.5房间湿负荷0.160.160.160.16000.160.160.160.160.16216房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷403.31411.37411.37427.33456.8483.8497.34526.82532.27545.78559.3辐射负荷610.15735.17754.46702.12633.57581.9546.06511.83467.55413.52349.52室内发热负荷112.12171.89193.89210.7115.3963.71161.92212.98226.88238.5137.38人体潜热负荷74.974.974.974.90074.974.974.974.974.9房间全负荷1200.51393.31434.61415.11205.811291280.21326.51301.61272.71121.1房间湿负荷0.110.110.110.11000.110.110.110.110.11201房间的计算冷负荷为1946.6W;计算湿负荷为0.48kg/h;202、203、204、207房间的计算冷负荷为1722.9W;计算湿负荷为0.48kg/h;205、206房间的计算冷负荷为3893.1W;计算湿负荷为0.96kg/h;208房间的计算冷负荷为4195.1W;计算湿负荷为1.06kg/h;209房间的计算冷负荷为2097.6W;计算湿负荷为0.53kg/h;210房间的计算冷负荷为1979.7W;计算湿负荷为0.52kg/h;211房间的计算冷负荷为5884.3W;计算湿负荷为1.48kg/h;212房间的计算冷负荷为6980.6W;计算湿负荷为1.59kg/h;213房间的计算冷负荷为8035.4W;计算湿负荷为2.54kg/h;214房间的计算冷负荷为5573.9W;计算湿负荷为1.41kg/h;215房间的计算冷负荷为2884.4W;计算湿负荷为0.16kg/h;216房间的计算冷负荷为1434.6W;计算湿负荷为0.11kg/h。2.3第三层冷负荷的计算一、301房间的冷负荷计算1、以301房间为例,各项温差传热冷负荷的计算过程及计算结果列入下表:各项温差传热的的逐时冷负负荷计算项目计算时刻89101112131415161718西北外墙τ-ε-0.50.51.52.53.54.55.56.57.58.59.5tτ-ε34.53433.5333333333333.53434.5K1.951.951.951.951.951.951.951.951.951.951.95F7.967.967.967.967.967.967.967.967.967.967.96△11111111111tn2626262626262626262626Qτ=KF(t+△△-tn))147.5139.7131.9124.2124.2124.2124.18124.2132140147.46内墙K1.951.951.951.951.951.951.951.951.951.951.95F19.4419.4419.4419.4419.4419.4419.4419.4419.419.419.44twp31.931.931.931.931.931.931.931.931.931.931.9tn2626262626262626262626Q=KF(twwp-tnn)223.7223.66223.7223.7223.7223.7223.66223.7224224223.66外窗(西北)tτ3132323334343435343434a1.11.11.11.11.11.11.11.11.11.11.1K2.62.62.62.62.62.62.62.62.62.62.6tn2626262626262626262626F55555555555Qτ=aKF(t--tn)71.585.885.8100.1114.4114.4114.4128.7114114114.4屋面τ-ε230123456789tτ-ε3434333332333334353637K0.90.90.90.90.90.90.90.90.90.90.9F19.4419.4419.4419.4419.4419.4419.4419.4419.419.419.44△11111111111tn2626262626262626262626Qτ=KF(t+△△-tn))157.5157.46140140122.5140139.97157.5175192209.95301房间冷负负荷小计∑Qτ600.1606.62581.4587.9584.7602.2602.2634645670695.472、透过玻璃窗太阳辐射形成的冷负荷计算过程见下表:透过玻璃窗的太太阳辐射逐逐时冷负荷荷计算计算项目计算时刻89101112131415161718西北窗F55555555555Xg0.540.540.540.540.540.540.540.540.540.540.54Xd1.091.091.091.091.091.091.091.091.091.091.09Jwτ597589101110116143192242268254Qτ=FXgXdJJwτ173.64220.73261.93297.24323.73341.39420.85565.06712.21788.72747.523、室内热源形成的冷负荷计算过程见下表:室内发热量形成成的冷负荷荷计算计算项目计算时刻89101112131415161718人体φ==0.9n=44.86q11=61上午T=8连续工作作小时数=4τ-T012345678910Xτ-T0.480.670.730.780.350.180.140.110.090.080.06φ0.90.90.90.90.90.90.90.90.90.90.9n12.9612.9612.9612.9612.9612.9612.9612.9612.9612.9612.96q16161616161616161616161Qτ1341.52476.71519.4554.97249.03128.0799.6178.2764.0456.9242.69下午T=14连续工工作小时数数=4τ-T01234Xτ-T0.480.670.730.780.35Qτ2341.5476.7519.4555249Qτ=Qτ1+Qτ2341.52476.71519.4554.97249.03128.07441.1555583.4611.9291.7灯光n1=0.8N=2213.884上午T=8连续工作作小时数=4τ-T012345678910Xτ-T0.360.570.650.710.410.230.180.150.120.10.08n10.80.80.80.80.80.80.80.80.80.80.8N12961296129612961296129612961296129612961296Qτ1373.25590.98673.92736.13425.09238.46186.6155.5124.4103.782.94下午T=14连续工工作小时数数=4τ-T01234Xτ-T0.360.570.650.710.41Qτ2373.2591673.9736.1425.1Qτ=Qτ1+Qτ2373.25590.98673.92736.13425.09238.46559.9746.5798.3839.8508冷负荷小计∑QQτ714.771067.71193.31291.1674.11366.531001130113821452799.74.人体潜热冷负荷取φ=0.9,n=4.86,查《实用供热空调设计手册第二版》下册中表20.7-3知,人体潜热散热量q2=73W。人体潜热散热量形成的冷负荷计算Qτ=φnτq2=0.9*4.86*73=319.302W计算结果列入表。5.人体散湿负荷散湿量为房间中的人,取φ=0.9,n=4.86,查《实用供热空调设计手册第二版》下册中表20.7-3知,人体单位散湿量g=109g/h,Dτ=0.001φnτg=0.001*0.9*4.86*109=0.48(kg/h)6.房间总负荷整个房间的全热冷负荷与湿负荷汇总于表。301房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷600607581588585602602634645670695.47辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷189.66276.28305.97329.58163.5287.37257.8331.29350.51360.78309.46人体潜热负荷319.3319.3319.3319.300319.3319.3319.3319.3319.3房间全负荷1282.61423.31468.21534.11072.3103116001849.620272138.82071.7房间湿负荷0.480.480.480.48000.480.480.480.480.48二、第三层其他房间的全热冷负荷与湿负荷汇总于下表:301房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷600.1606.62581.4587.9584.7602.2602.2634645670695.47辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷189.66276.28305.97329.58163.5287.37257.8331.29350.51360.78309.46人体潜热负荷319.3319.3319.3319.300319.3319.3319.3319.3319.3房间全负荷1282.71422.91468.61534107210311600.21849.620272138.82071.7房间湿负荷0.480.480.480.48000.480.480.480.480.48302、3033、304、307房间冷负负荷与湿负负荷汇总传热负荷376.4382.96357.7364.2361378.5378.54410.3421447471.81辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷189.66276.28305.97329.58163.5287.37257.8331.29350.51360.78309.46人体潜热负荷319.3319.3319.3319.300319.3319.3319.3319.3319.3房间全负荷10591199.31244.91310.3848.25807.31376.51625.918031915.81848.1房间湿负荷0.480.480.480.48000.480.480.480.480.48305、3066房间冷负负荷与湿负负荷汇总传热负荷1200.11213.21162.71175.81169.412041204.4126812901340.51390.9辐射负荷347.27441.45523.85594.49647.46682.8841.71130.11424.41577.41495室内发热负荷379.31552.55611.94659.15327.05174.7515.61662.57701.03721.55618.91人体潜热负荷638.6638.6638.6638.600638.6638.6638.6638.6638.6房间全负荷2565.32845.82937.130682143.920623200.33699.340544278.14143.5房间湿负荷0.960.960.960.96000.960.960.960.960.96309房间冷负负荷与湿负负荷汇总传热负荷688.75691.51660.54663.34658.24677.6677.66711.44727.64759.15789.93辐射负荷173.64220.73261.93297.24323.73341.4420.85565.06712.21788.72747.52室内发热负荷210.73306.97339.97366.2181.6997.08286.45368.1389.46408.92214.69人体潜热负荷354.78354.78354.78354.7800354.78354.78354.78354.78354.78房间全负荷1427.915741617.21681.61163.711161739.71999.42184.12311.62106.9房间湿负荷0.530.530.530.53000.530.530.530.530.53308房间冷负负荷与湿负负荷汇总房间全负荷2855.831483234.43363.12327.322323479.53998.84368.24623.14213.8房间湿负荷1.061.061.061.06001.061.061.061.061.06310房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷778.58764.02723.5716.74719.4754.3762.1824.7865.98914.8983.97辐射负荷473.82626.86703.38697.49623.92553.3512.08473.82432.62379.65320.79室内发热负荷210.73306.97339.97366.2181.6997.08286.45368.1389.46408.92214.69人体潜热负荷354.78354.78354.78354.7800354.78354.78354.78354.78354.78房间全负荷1817.92052.62121.62135.2152514051915.42021.42042.82058.21874.2房间湿负荷0.520.520.520.52000.520.520.520.520.52311房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷1151.21211.51153.31223.11255.413361349.71494.71501.81573.81648.8辐射负荷2283.328943144.730782836.826892667.82639.12525.22283.51930.3室内发热负荷590.04859.53951.911025.3508.74271.8802.061030.71090.51145601.13人体潜热负荷993.38993.38993.38993.3800993.38993.38993.38993.38993.38房间全负荷5017.95958.46243.36319.84600.942975812.96157.96110.95995.75173.6房间湿负荷1.481.481.481.48001.481.481.481.481.48312房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷1114.11813.81755.51894.52003.521192147.22372.92348.92436.32522.5辐射负荷2302.83046.53418.43389.83032.226892488.72302.82102.51845.11559室内发热负荷632.19920.921019.91098.6545.08291.2859.351104.31168.41226.8644.06人体潜热负荷1064.31064.31064.31064.3001064.31064.31064.31064.31064.3房间全负荷5113.46845.67258.17447.25580.850996559.66844.36684.16572.55789.9房间湿负荷1.591.591.591.59001.591.591.591.591.59313房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷1114.11813.81755.51894.52003.521192147.22372.92348.92436.32522.5辐射负荷2302.83046.53418.43389.83032.226892488.72302.82102.51845.11559室内发热负荷290.7444.21500.51543.61296.1163.2418.2549.3584.9614.9352.3人体潜热负荷212.87212.87212.87212.8700212.87212.87212.87212.87212.87房间全负荷3920.55517.45887.36040.85331.849715266.95437.95249.25109.24646.7房间湿负荷0.320.320.320.32000.320.320.320.320.32314房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷1967.91869.51787.41847.31868.520372080.32265.72349.724752600.2辐射负荷3050.83650.54039.63995.53653.934013321.43239.63073.32762.42334.9室内发热负荷889.751296.11435.41546.2767.2409.91209155416441727906.5人体潜热负荷14981498149814980014981498149814981498房间全负荷7406.48314.18760.488876289.658488108.78557.385658462.47339.6房间湿负荷2.242.242.242.24002.242.242.242.242.24315房间冷负负荷与湿负负荷汇总负荷项目计算时刻τ89101112131415161718传热负荷2407.52491.82311.42403.52328.825362549.72835.82945.43139.33333.1辐射负荷2994.837754072.33955.63619.633873304.93219.43044.62736.32313室内发热负荷394.25604.41681.75740.85405.7224569.4748.9797.8838.6483人体潜热负荷263.46263.46263.46263.4600263.46263.46263.46263.46263.46房间全负荷60607134.67328.97363.56354.161486687.57067.57051.36977.66392.6房间湿负荷0.390.390.390.39000.390.390.390.390.39301房间的计算冷负荷为2138.8W;计算湿负荷为0.48kg/h;302、303、304、307房间的计算冷负荷为1915.8W;计算湿负荷为0.48kg/h;305、306房间的计算冷负荷为4278.1W;计算湿负荷为0.96kg/h;309房间的计算冷负荷为2311.6W;计算湿负荷为0.53kg/h;308房间的计算冷负荷为4623.1W;计算湿负荷为1.06kg/h;310房间的计算冷负荷为2135.2W;计算湿负荷为0.52kg/h;311房间的计算冷负荷为6319.8W;计算湿负荷为1.48kg/h;312房间的计算冷负荷为7447.2W;计算湿负荷为1.59kg/h;313房间的计算冷负荷为6040.8W;计算湿负荷为0.32kg/h;314房间的计算冷负荷为8887W;计算湿负荷为2.24kg/h;315房间的计算冷负荷为7363.5W;计算湿负荷为0.39kg/h。第3章热负荷的计算3.1围护结构耗热量的计算1.根据房间使用特点,确定其室内计算温度tn=20℃。2.维护结构传热系数外墙:K=1.95W/(㎡·℃)外窗:玻璃单框双层塑钢窗K=2.86W/(㎡·℃)屋面:K=0.9W/(㎡·℃)3.围护结构基本耗热量Q=KF(tn-t'w)K---围护结构的传热系数W/(㎡·℃)F---围护结构的面积㎡,tn---室内计算温度℃,t’w---室外计算温度℃a---温差修正系数4.冷风渗透耗热量Q2由于室内压力稍高于室外,不存在室外空气渗透问题,故不需考虑冷风渗透耗热量。5.办公及电器设备的散热量办公设备的类型和数量无法确定,按查《实用供热空调设计手册第二版》下册中表20.9-4给出的电器设备功率密度推算空调区的办公设备散热量。7.房间总耗热量Q(见围护结构计算表)3.2计算各房间的热负荷一、第一层各方方间的热负负荷以101房间为例例,室内计计算温度为为20℃,冬季室室外计算温温度为-0.44℃。1、围护结构传热耗耗热量Q111)西北外墙F==3.6××4.2--5=100.12㎡=1.95×110.122×20..4=4002.577W2)西北窗F==2.5××2=5㎡=2.86×55×20..4=2991.722W3)西南外墙FF=5.44×4.22=22..68㎡=1.95×222.688×20..4=9002.211W房间围护结构的的传热耗热热量Q1=402..57+2291.772+9002.211=15966.5W2、办公及电器设设备的散热热量qs=Fqf=3..6×5..4×200=3888.8W3、房间总耗热量QQQ==Q1+qqs=15966.5-3888.8==1207.7W第一层所有房间间的热负荷荷汇总于下下表:房间编号围护结构室内供暖计算温温度室外供暖计算温温度室内外计算温差差传热系数传热耗热量∕WW名称及朝向面积101西北外墙10.1220-0.4℃20.41.95402.57西北外窗520.42.86291.72西南外墙22.6820.41.95902.21围护结构传热耗耗热量1596.5空调区面积F19.44功率密度20办公及电器设备备的散热量量388.8房间总耗热量QQ1207.7102、1033、105、107西北外墙10.1220-0.4℃20.41.95402.57西北外窗520.42.86291.72围护结构传热耗耗热量694.29空调区面积F19.44功率密度20办公及电器设备备的散热量量388.8房间总耗热量QQ305.49104、1066西北外墙20.2420-0.4℃20.41.95805.15西北外窗1020.42.86583.44围护结构传热耗耗热量1388.6空调区面积F38.88功率密度20办公及电器设备备的散热量量777.6房间总耗热量QQ610.99108西北外墙23.620-0.4℃20.41.95938.81西北外窗1020.42.86583.44围护结构传热耗耗热量1522.2空调区面积F43.2功率密度20办公及电器设备备的散热量量864房间总耗热量QQ658.25109西北外墙11.820-0.4℃20.41.95469.4西北外窗520.42.86291.72围护结构传热耗耗热量761.12空调区面积F21.6功率密度20办公及电器设备备的散热量量432房间总耗热量QQ329.12110东南外墙10.1220-0.4℃20.41.95402.57东南外窗520.42.86291.72西南外墙25.220.41.951002.5围护结构传热耗耗热量1696.7空调区面积F21.6功率密度20办公及电器设备备的散热量量432房间总耗热量QQ1264.7111东南外墙14.0420-0.4℃20.41.95558.51东南外窗16.220.42.86945.17西南外墙5.3220.41.95211.63西南外窗4.7620.42.86277.72东北外墙5.3220.41.95211.63东北外窗4.7620.42.86277.72围护结构传热耗耗热量2482.4空调区面积F60.48功率密度20办公及电器设备备的散热量量1209.6房间总耗热量QQ1272.8112东南外墙14.0420-0.4℃20.41.95558.51东南外窗16.220.42.86945.17围护结构传热耗耗热量1503.7空调区面积F43.2功率密度20办公及电器设备备的散热量量864房间总耗热量QQ639.68113东南外墙7.0220-0.4℃20.41.95279.26东南外窗8.120.42.86472.59围护结构传热耗耗热量751.84空调区面积F21.6功率密度5办公及电器设备备的散热量量108房间总耗热量QQ643.84115东南外墙26.120-0.4℃20.41.951038.3东南外窗24.320.42.861417.8西南外墙5.3220.41.95211.63西南外窗4.7620.42.86277.72东北外墙30.5220.41.951214.1东北外窗4.7620.42.86277.72围护结构传热耗耗热量4437.2空调区面积F91.2功率密度5办公及电器设备备的散热量量456房间总耗热量QQ3981.2114东南外墙46.820-0.4℃20.41.951861.7东南外窗38.8820.42.862268.4西南外墙10.0820.41.95400.98东北外墙7.220.41.95286.42东北外窗2.8820.42.86168.03围护结构传热耗耗热量4985.5走廊面积F136.8功率密度0办公及电器设备备的散热量量0其他面积F122.4功率密度5办公及电器设备备的散热量量612房间总耗热量QQ4985.5二、第二层各方方间的热负负荷汇总于于下表:房间编号围护结构室内供暖计算温温度室外供暖计算温温度室内外计算温差差传热系数传热耗热量∕WW名称及朝向面积201、2022、203、204、207西北外墙7.9620-0.4℃20.41.95316.65西北外窗520.42.86291.72围护结构传热耗耗热量608.37空调区面积F19.44功率密度20办公及电器设备备的散热量量388.8房间总耗热量QQ219.57205、2066西北外墙15.9220-0.4℃20.41.95633.3西北外窗520.42.86291.72围护结构传热耗耗热量925.02空调区面积F38.88功率密度20办公及电器设备备的散热量量777.6房间总耗热量QQ147.42209西北外墙9.420-0.4℃20.41.95373.93西北外窗520.42.86291.72围护结构传热耗耗热量665.65空
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