煙氣的物性參數(shù)

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當(dāng)缺乏燃料元素分析成分時，可通過燃料收到基的低位發(fā)熱量按經(jīng)驗公式計算出理論空氣量L0

和理論煙氣量V0后，按下式計算煙氣焓：

Hy＝ε0c0yty[V0+1.0161(α-1)L0]

式中ε0－通用煙氣焓的校正系數(shù)；c0yty－通用煙氣焓（kJ/m3），查下表。

通用煙氣焓比熱容t/℃10020030040050060070080090010001100通用煙氣校正系數(shù)ε0值

α1.001.051.101.151.201.251.301.351.401.451.50

ε01.000.9960.9930.9880.9850.98250.9800.97750.97500.97300.9710α1.551.601.651.701.751.801.851.901.95ε00.96900.96750.96650.96450.96250.96150.9600.95800.9570kJ/m3?℃1.38111.40031.50981.44751.46131.48111.50181.52101.53961.55661.5728kCal/m3?℃0.32990.33450.36060.34570.34900.35380.35870.36330.36770.37180.3757煙氣焓（c0yty）/kJ?m-3138.11280.06452.94579.00730.66888.671051.271216.801385.671556.631730.10比熱容t/℃1200130014001500160017001800190020002100kJ/m3?℃1.58841.60321.61681.62941.64171.65311.66361.67351.68321.6915煙氣焓（c0yty）/kJ3kCal/m?℃?m-30.37940.38290.38620.38920.39210.39480.39730.39970.40200.40401906.082084.152263.472444.052626.712810.212994.553179.733366.323552.16注：摘自《動力工程師手冊》機械工業(yè)出版社2023年5月第一版其次次印刷p.3－41一般燃燒生成氣（煙氣）的物理性質(zhì)

ct(℃)010020030040050060070080090010001100120013001400150016001800~2000λ[w/（m?℃）]ν×106（m2/s）0.02280.03130.04010.04840.05700.06550.07420.08270.09150.1000.1090.1180.1260.1350.1440.1540.16312.221.532.845.860.476.393.6112132152174197221245272297323Pr0.720.690.670.650.640.630.620.610.600.590.580.570.560.550.540.530.52kJ/Nm3?℃）1.4241.4321.4401.4491.4571.4741.4911.5041.5201.5321.5451.5561.5781.5911.6041.6161.675kCal/Nm3?℃）0.3400.3420.3440.3460.3480.3520.3560.3590.3630.3660.3690.3720.3770.3800.3830.3860.400注：1、λ－熱導(dǎo)率；ν－運動粘度；Pr－普蘭特準(zhǔn)數(shù)；c－平均比熱容〔kJ/(Nm3?℃)〕。2、摘自《工業(yè)爐設(shè)計手冊》其次版2000年6月p.1003

煙氣的物性參數(shù)

（p＝760mmHg＝1.0132×105Pa，組成：CO213%,H2O11%,N226%）溫度t℃0100200300400500600700800900100011001200密度kg/m31.2950.9500.7480.6170.52504570.4050.3630.32950.3010.2750.2570.240比熱容kJ/kg?℃1.0431.0681.0971.1221.1511.1851.2141.1291.2641.2901.3061.3231.340導(dǎo)熱系數(shù)kJ/(m?h?℃)8.20611.26214.44417.41720.51523.61426.71229.76832.95036.04839.23042.28745.427導(dǎo)溫系數(shù)a×102m2/h6.0811.1017.6025.1633.9443.6154.3266.1779.0982.87109.21124.37141.27粘度μ×9.×105Pa?s1.6092.0792.4972.8783.2303.5533.8604.1484.4224.6804.9305.1695.402運動粘度ν×106m2/s12.2021.5432.8045.8160.38