北京市某旅游飯店會議室空調(diào)工程

1、北京市某旅游飯店會議室空調(diào)工程一 工程概況：該建筑為北京市某旅游飯店裙樓的會議室，共分大小兩個會議室，其余房間分別為辦公室和機(jī)房。兩個會議室均采用空調(diào)系統(tǒng)。辦公室已有空調(diào)，不需再設(shè)。走廊不設(shè)空調(diào)建筑地理位置 地點：北京 北緯：3948 東經(jīng)：11628 大氣壓力:100250Pa建筑熱工特性1）層高：該房間梁下標(biāo)高為4.5米。屋頂：依據(jù)屋面結(jié)構(gòu)類型其屋面做法為型2）外墻：370毫米外抹水泥砂漿內(nèi)抹白灰實心磚墻。小會議室:南墻面積為51.17，北墻面積為51.17，東墻面積為97.42；大會議室：南墻面積為124.8，北墻面積為124.8。 3）建筑結(jié)構(gòu)：全部為混凝土框架結(jié)構(gòu)，外墻均為37墻。外

2、窗為鋼窗，雙層普通玻璃，內(nèi)有淺綠色窗簾，內(nèi)外門均為保溫木門。小會議室：南窗為10.08，東窗為10.08，北窗為10.08；大會議室：南窗為25.2，東窗為0，北窗為25.2。 4）照明：熒光燈照明，大會議室為1500W，小會議室為600W。5）房間人數(shù)：大會議室500人，小會議室200人。夏、冬季室外設(shè)計計算參數(shù)：夏季空調(diào)室外計算干球溫度: 33.2夏季空調(diào)室外計算濕球溫度: 26.4 冬季空調(diào)室外計算干球溫度: -12冬季空調(diào)室外計算相對濕度: 45%冬、夏季室外平均風(fēng)速: 2.35 m/s 夏、冬季室內(nèi)要求參數(shù)：夏季：溫度28 相對濕度60%冬季：溫度18 相對濕度40%所有圖表數(shù)據(jù)均查

3、自冷負(fù)荷?？?熱（冷）、濕負(fù)荷的計算1 夏季冷負(fù)荷計算（一）外墻冷負(fù)荷外墻為混凝土框架結(jié)構(gòu) 、37墻 、白灰粉刷、紅磚 、水泥砂漿，由冷負(fù)荷?？?-1(外墻結(jié)構(gòu)類型表)查的屬序號2 、型 ， 傳熱系數(shù)為K=1.29千卡小時米 ，由表3-3(外墻冷負(fù)荷計算溫度tl表)查得不同朝向時的tl值。按各朝向外墻面積計算出外墻逐時冷負(fù)荷。計算公式為: CL=FK(tl-tn) CL外墻瞬變傳熱引起的逐時冷負(fù)荷，千卡小時 F外墻的面積，米 K外墻的傳熱系數(shù)，千卡米小時 tn 室內(nèi)設(shè)計溫度 tl外墻的冷負(fù)荷計算溫度的逐時值大會議室外墻冷負(fù)荷時間7:008:009:0010:0011:0012:0013:0

4、014:0015:0016:0017:0018:0019:00朝向分項 南tl3534.634.233.933.533.232.932.832.933.133.433.934.4F124.8K1.29tl-tn76.66.25.95.55.24.94.84.95.15.45.96.4FK(tl-tn)1126.94 1062.55 998.15 949.85 885.46 837.16 788.86 772.76 788.86 821.06 869.36 949.85 1030.35 北tl32.60 32.30 32.10 31.80 31.60 31.40 31.30 31.20 31.2

5、0 31.30 31.40 31.60 31.80 F124.8K1.29tl-tn4.64.34.13.83.63.43.33.23.23.33.43.63.8FK(tl-tn)740.563 692.266 660.067 611.770 579.571 547.373 531.274 515.174 515.174 531.274 547.373 579.571 611.770 兩個朝向CL總和1867.5071754.8131658.2181561.6221465.0271384.5311320.1341287.9361304.0351352.3331416.731529.424164

6、2.118小會議室外墻冷負(fù)荷時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00朝向分項 南tl3534.634.233.933.533.232.932.832.933.133.433.934.4F51.17K1.29tl-tn76.66.25.95.55.24.94.84.95.15.45.96.4FK(tl-tn)462.0651435.6614409.2577389.4549363.0512343.2484323.4456316.8446323.4456336.6474356.4502389.4549422.45

7、95 北tl32.632.332.131.831.631.431.331.231.231.331.431.631.8F51.17K1.29tl-tn4.64.34.13.83.63.43.33.23.23.33.43.63.8FK(tl-tn)303.6428283.84270.6381250.8353237.6335224.4316217.8307211.2298211.2298217.8307224.4316237.6335250.8353 東tl36.43635.535.2353535.235.636.136.637.137.537.9F97.42K1.29tl-tn8.487.57.2

8、777.27.68.18.69.19.59.9FK(tl-tn)1055.64 1005.37 942.54 904.84 879.70 879.70 904.84 955.11 1017.94 1080.78 1143.61 1193.88 1244.15 三個朝向CL總和1821.3511724.8761622.4341545.1271480.3871447.3831446.1131483.181552.6171635.2561724.4951820.971917.446走廊冷負(fù)荷時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:001

9、8:0019:00朝向分項 南tl3534.634.233.933.533.232.932.832.933.133.433.934.4F17.46K1.29tl-tn76.66.25.95.55.24.94.84.95.15.45.96.4FK(tl-tn)157.6638148.6544139.6451132.8881123.8787117.1217110.3647108.1123110.3647114.8693121.6264132.8881144.1498 北tl32.632.332.131.831.631.431.331.231.231.331.431.631.8F16.02K1.29

10、tl-tn4.614.314.113.813.613.413.313.213.213.313.413.613.8FK(tl-tn)95.06268295.5209291.3878285.188281.0549276.9217274.8551272.7886272.7886274.8551276.9217281.0549285.188CL的總和252.7265444.1754431.0329418.0761404.9336394.0434385.2198380.9009383.1532389.7245398.5481413.9429429.3378（二）屋面冷負(fù)荷屋面根據(jù)其構(gòu)造，由表3-2（屋面

11、結(jié)構(gòu)類型表）中查得這類屋面做法屬型，K=0.83千卡米小時。再由表3-4（屋面冷負(fù)荷計算溫度tl表）查得型的逐時tl值。計算公式為: CL=FK(tl-tn) CL屋面瞬變傳熱引起的逐時冷負(fù)荷，千卡小時 F屋面的面積，米 K屋面的傳熱系數(shù)，千卡米小時 tn 室內(nèi)設(shè)計溫度 tl屋面的冷負(fù)荷計算溫度的逐時值屋面冷負(fù)荷時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00房間分項大會議室tl35.534.133.132.7333435.838.140.743.546.148.349.9F630K0.83tl-tn7.56.15

12、.14.7567.810.112.715.518.120.321.9FK(tl-tn)3921.753189.692666.792457.632614.53137.44078.625281.296640.838104.959464.4910614.8711451.51小會議室tl35.534.133.132.7333435.838.140.743.546.148.349.9F252K0.83tl-tn7.56.15.14.7567.810.112.715.518.120.321.9FK(tl-tn)1639.5091333.4681114.8661027.4261093.0061311.608

13、1705.092207.8732776.2363388.3193956.6834437.6054787.367走廊tl35.534.133.132.7333435.838.140.743.546.148.349.9F94.5K0.83tl-tn7.56.15.14.7567.810.112.715.518.120.321.9FK(tl-tn)588.2625478.4535400.0185368.6445392.175470.61611.793792.1935996.12451215.7431419.6741592.2311717.727（三）玻璃窗瞬變傳熱引起的冷負(fù)荷雙層普通玻璃，由表3-9

14、（雙層玻璃的K值）查得這種窗在an=7.5千卡米小時和aw=16千卡米小時時傳熱系數(shù)K=2.59千卡米小時。外窗為鋼窗，由表3-10查得玻璃窗傳熱系數(shù)的修正值為1.2。由表3-11（玻璃窗冷負(fù)荷計算溫度tl表）可查得玻璃窗的逐時冷負(fù)荷計算溫度tl值。計算公式為: CL=FK(tl-tn) 式中k=2.591.2=3.108為了計算簡單把走廊外門上的玻璃和窗玻璃歸在一起計算。玻璃窗瞬變傳熱引起的冷負(fù)荷時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00房間分項大會議室tl2626.927.92929.930.831.53

15、1.932.232.23231.630.8F50.4修正后的K3.108tl-tn-2-1.1-0.111.92.83.53.94.24.243.62.8FK(tl-tn)-313.286-172.308-15.6643156.6432297.6221438.601548.2512610.9085657.9014657.9014626.5728563.9155438.601小會議室tl2626.927.92929.930.831.531.932.232.23231.630.8F30.24修正后的K3.108tl-tn-2-1.1-0.111.92.83.53.94.24.243.62.8FK(

16、tl-tn)-187.972-103.385-9.3985993.98592178.5732263.1606328.9507366.5451394.7409394.7409375.9437338.3493263.1606走廊tl2626.927.92929.930.831.531.932.232.23231.630.8F6.48修正后的K3.108tl-tn-2-1.1-0.111.92.83.53.94.24.243.62.8FK(tl-tn)-40.2797-22.1538-2.0139820.1398438.265756.3915570.4894478.5453884.5873384.5

17、873380.5593672.5034256.39155（四）透過玻璃進(jìn)入的日射得熱引起的冷負(fù)荷計算公式為：CL=FCZDJ，maxCCL由表2-4查得雙層鋼窗的有效面積系數(shù)值Ca=0.75。計算冷負(fù)荷時，各朝向窗口面積均乘以0.75，以得出窗玻璃凈面積F代入式中。所有玻璃窗均為3毫米普通玻璃由表2-2查得窗玻璃的Cs值為0.86，內(nèi)有淺綠色窗簾，由表2-3查得窗內(nèi)遮陽設(shè)施的遮陽系數(shù)為0.6。窗玻璃的綜合遮擋系數(shù)CZ=CSCN =0.516。因北京屬于40緯度帶，由表2-1查得DJ，max值，南向為260，東向為515，北向為98，西向為515（單位均為千卡米小時）。北京屬北區(qū)，各朝向有內(nèi)遮陽

18、的CCL值可由表2-6（北區(qū)有內(nèi)遮陽窗玻璃冷負(fù)荷系數(shù)表）查得。根據(jù)所得的數(shù)據(jù)計算出結(jié)果。玻璃進(jìn)入的日射得熱引起的冷負(fù)荷時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00房間朝向分項大會議室南CCL0.180.260.40.580.720.840.80.620.450.320.240.160.1DJ，max260F18.9CZ0.516CL456.4123659.26221014.251470.6621825.6492129.9242028.4991572.0871141.031811.3997608.5498405.

19、6998253.5624北CCL0.540.540.650.750.810.830.830.790.710.60.610.680.17DJ，max98F18.9CZ0.516CL516.097516.097621.2279716.8014774.1455793.2602793.2602755.0308678.572573.4411582.9985649.8999162.475兩個方向CL的總和972.50931175.3591635.4772187.4632599.7952923.1842821.7592327.1181819.6031384.8411191.5481055.6416.0374

20、小會議室南CCL0.180.260.40.580.720.840.80.620.450.320.240.160.1DJ，max260F7.56CZ0.516CL182.5649263.7049405.6998588.2648730.2597851.9697811.3997628.8348456.4123324.5599243.4199162.2799101.425北CCL0.540.540.650.750.810.830.830.790.710.60.610.680.17DJ，max98F7.56CZ0.516CL206.4388206.4388248.4912286.7206309.6582

21、317.3041317.3041302.0123271.4288229.3764233.1994259.9664.98999東CCL0.680.820.790.590.380.240.240.230.210.180.150.110.08DJ，max515F7.56CZ0.516CL1366.1161647.3751587.1061185.307763.4179482.1587482.1587462.0687421.8888361.619301.3492220.9894160.7196三個朝向的CL的和1755.122117.5192241.2972060.2921803.3361651.432

22、1610.8621392.9161149.73915.5553777.9685643.2293327.1345走廊南CCL0.180.260.40.580.720.840.80.620.450.320.240.160.1DJ，max260F3.78CZ0.516CL91.28246131.8524202.8499294.1324365.1299425.9848405.6998314.4174228.2062162.2799121.7181.1399750.71248北CCL0.540.540.650.750.810.830.830.790.710.60.610.680.17DJ，max98F1

23、.08CZ0.516CL29.4912629.4912635.4987440.9600844.2368945.3291645.3291643.1446238.7755432.7680633.314237.137149.284285兩個朝向的CL總和120.7737161.3437238.3487335.0925409.3667471.314451.029357.562266.9817195.048155.0242118.277159.99676(五)人員散熱引起的冷負(fù)荷大會議室500人，小會議室200人，屬靜坐類型，查表4-2，當(dāng)室溫為28時，每人散發(fā)的顯熱和潛熱量分別為46和47千卡小時（全

24、熱量為115千卡小時），由于在室內(nèi)工作的人員包括男子和女子，參考表4-3，取群集系數(shù)為n1=0.96。根據(jù)在室內(nèi)工作的人員由上午8時至下午6時共停留10個小時（中午的兩個小時午休時間也計算在內(nèi)），可由表4-4（人體顯熱散熱冷負(fù)荷系數(shù)表）查得逐時的CCL值。 計算公式為：CL=QSn1CCL 因為會議室屬人員密集場所，所以取CCL =1，故各個時刻的人體散熱冷負(fù)荷是固定的。而人體潛熱散熱引起的冷負(fù)荷則為潛熱散熱量乘以群集系數(shù)。人員散熱引起的冷負(fù)荷時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00房間分項CCL11111

25、11111111大會議室顯熱負(fù)荷CL1=QS*n1*CCL22080潛熱負(fù)荷CL2=QL*n122560CL1+CL244640小會議室顯熱負(fù)荷CL1=QS*n1*CCL8832潛熱負(fù)荷CL2=QL*n19024CL1+CL217856（六）照明散熱引起的冷負(fù)荷對熒光燈CL=860n1n2NCCL N照明燈具所需功率，千瓦； n1鎮(zhèn)流器消耗功率系數(shù)，當(dāng)明裝熒光燈的鎮(zhèn)流器裝設(shè)在空調(diào)房間內(nèi)時取n1=1.2 n2燈罩隔熱系數(shù)，當(dāng)熒光燈罩上部穿有小孔（下部為玻璃板），可利用自然通風(fēng)散熱于頂棚內(nèi)時n2=0.5 0.6取0.5; CCL照明散熱冷負(fù)荷系數(shù)，根據(jù)明裝和暗裝熒光燈，按照不同的空調(diào)設(shè)備運(yùn)行時間和

26、開燈時間及開燈后的小時數(shù)，由表4-1取用數(shù)值，選空調(diào)設(shè)備運(yùn)行12小時，開燈時數(shù)10小時。照明散熱引起的冷負(fù)荷開燈后的小時數(shù)01234567891011分項CCL0.630.90.910.930.930.940.950.950.950.960.960.37n11.2n20.5大會議室N1.5CL487.62696.6704.34719.82719.82727.56735.3735.3735.3743.04743.04286.38小會議室N0.6CL195.048278.64281.736287.928287.928291.024294.12294.12294.12297.216297.21611

27、4.552（七）其他部分引起的冷負(fù)荷走廊門的木頭部分的冷負(fù)荷時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00分項tl32.632.332.131.831.631.431.331.231.231.331.431.631.8F5.04K2.33tl-tn4.64.34.13.83.63.43.33.23.23.33.43.63.8FK(tl-tn)54.0187250.4957648.1471244.6241642.2755239.9268838.7525637.5782437.5782438.7525639.9268

28、842.2755244.62416（八）各部分冷負(fù)荷匯總走廊冷負(fù)荷總和時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00分項外墻冷負(fù)荷252.726 444.175 431.033 418.076 404.934 394.043 385.220 380.901 383.153 389.724 398.548 413.943 429.338 屋面冷負(fù)荷588.263 478.454 400.019 368.645 392.175 470.610 611.793 792.194 996.125 1215.743 1419

29、.674 1592.231 1717.727 總的瞬變傳熱冷負(fù)荷-40.280 -22.154 -2.014 20.140 38.266 56.392 70.489 78.545 84.587 84.587 80.559 72.503 56.392 總的日射得熱冷負(fù)荷120.774 161.344 238.349 335.092 409.367 471.314 451.029 357.562 266.982 195.048 155.024 118.277 59.997 門的木頭部分冷負(fù)荷54.019 50.496 48.147 44.624 42.276 39.927 38.753 37.57

30、8 37.578 38.753 39.927 42.276 44.624 總冷負(fù)荷975.502 1112.315 1115.533 1186.577 1287.017 1432.286 1557.284 1646.780 1768.425 1923.855 2093.732 2239.229 2308.077 大會議室冷負(fù)荷總和時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00分項外墻冷負(fù)荷1867.51 1754.81 1658.22 1561.62 1465.03 1384.53 1320.13 1287.94

31、 1304.04 1352.33 1416.72961529.4241642.1184屋面冷負(fù)荷3921.753189.692666.792457.632614.53137.44078.625281.296640.838104.959464.4910614.8711451.51玻璃窗瞬變傳熱冷負(fù)荷-313.29 -172.31 -15.66 156.64 297.62 438.60 548.25 610.91 657.90 657.90 626.5728563.91552438.60096玻璃窗日射得熱冷負(fù)荷972.51 1175.36 1635.48 2187.46 2599.79 2923

32、.18 2821.76 2327.12 1819.60 1384.84 1191.5482321055.599776416.037384人員散熱冷負(fù)荷44640446404464044640446404464044640446404464044640446404464044640照明散熱冷負(fù)荷0487.62696.6704.34719.82719.82727.56735.3735.3735.3743.04743.04286.38走廊傳熱冷負(fù)荷487.75 556.16 557.77 593.29 643.51 716.14 778.64 823.39 884.21 961.93 1046.86

33、5985 1119.614746 1154.038388 總冷負(fù)荷51576.23 51631.33 51839.19 52300.99 52980.27 53959.68 54914.97 55705.94 56681.88 57837.25 59129.246617 60266.464042 60028.685132 換算成W59972.36 60036.43 60278.12 60815.10 61604.97 62743.81 63854.61 64774.35 65909.17 67252.62 68754.937927 70077.283769 69800.796666 小會議室冷

34、負(fù)荷總和時間7:008:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:00分項外墻冷負(fù)荷1821.35 1724.88 1622.43 1545.13 1480.39 1447.38 1446.11 1483.18 1552.62 1635.26 1724.50 1820.97 1917.45 屋面冷負(fù)荷1639.51 1333.47 1114.87 1027.43 1093.01 1311.61 1705.09 2207.87 2776.24 3388.32 3956.68 4437.61 4787.37 玻璃窗瞬變傳熱冷負(fù)荷-1

35、87.97 -103.38 -9.40 93.99 178.57 263.16 328.95 366.55 394.74 394.74 375.94 338.35 263.16 玻璃窗日射得熱冷負(fù)荷1755.12 2117.52 2241.30 2060.29 1803.34 1651.43 1610.86 1392.92 1149.73 915.56 777.97 643.23 327.13 人員散熱冷負(fù)荷17856178561785617856178561785617856178561785617856178561785617856照明散熱冷負(fù)荷0195.048278.64281.7362

36、87.928287.928291.024294.12294.12294.12297.216297.216114.552走廊傳熱冷負(fù)荷487.75 556.16 557.77 593.29 643.51 716.14 778.64 823.39 884.21 961.93 1046.866 1119.615 1154.038 總冷負(fù)荷23371.76 23679.68 23661.61 23457.86 23342.74 23533.65 24016.68 24424.02 24907.66 25445.92 26035.172 26512.985 26419.699 換算成W27176.46

37、27534.52 27513.49 27276.58 27142.72 27364.71 27926.37 28400.03 28962.39 29588.28 30273.46 30829.05 30720.58 夏季濕負(fù)荷的計算小會議室：W1=82*200*0.96=15744g/h=4.37g/s大會議室：W1=82*500*0.96=39360g/h=10.93g/s2冬季熱負(fù)荷計算房間耗熱量計算表房間編號房間名稱圍護(hù)結(jié)構(gòu)傳熱系數(shù)室內(nèi)計算溫度空調(diào)室外計算溫度室內(nèi)外計算溫度差溫差修正系數(shù)耗熱量修正圍護(hù)結(jié)構(gòu)耗熱量圍護(hù)結(jié)構(gòu)總耗熱量朝向風(fēng)向高度修正名稱及方向面積Ktntwtn-twaxcnxf

38、1+xcn+xfxgQ1QW/(*)WW101小會議室南外墻12.25*5-2*2.1*2.451.171.2918-12301-1500.851.021716.90189323934.93138北外墻12.25*5-2*2.1*2.451.171.2918-12301501.051.022120.878809東外墻21.5*12.2597.421.2918-12301-500.951.023653.279226南外窗2.4*2.1*210.082.5918-12301-1500.851.02679.048272北外窗2.4*2.1*210.082.5918-12301501.051.0283

39、8.824336東外窗2.4*2.1*210.082.5918-12301-500.951.02758.936304西內(nèi)墻21*5-2*2.1*2.793.661.7218-12300.70011.024929.51312西內(nèi)門2*2.1*2.711.342.3318-12300.70011.02808.51932屋頂12*212520.8318-123010011.026400.296地11.88*2*2+20.76*289.040.4718-123010011.021280.57328地9.88*2*2+12.76*265.040.2318-123010011.02457.75152地7.

40、88*2*2+8.76*249.040.1218-123010011.02180.07488地5.8851.510.0718-123010011.02110.33442102大會議室南外墻30*5-5*2.4*2.1124.81.2918-12301-1500.851.024187.4019238467.48644北外墻30*5-5*2.4*2.1124.81.2918-12301501.051.025172.67296南外窗2.1*2.4*525.22.5918-12301-1500.851.021697.62068北外窗2.1*2.4*525.22.5918-12301501.051.022097.06084東內(nèi)墻21*5-2*2.1*2.793.661.7218-12300.70011.024929.51312東內(nèi)門2*2.1*2.711.342.3318-12300.70011.02808.51932屋