材料热物性参数
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Apache-Tables
Apache-Tables
Table1Ground Reflectance (3)
Table2Precipitable Water Vapour Depth(In Metres) (4)
Table3Dry-Bulb Temperatures (5)
Table4World Weather Data (6)
Table5U-Values for Glazing (7)
Table6Thermal Conductivity,Specific Heat Capacity and Density (9)
Table8Shading Coefficient and Short-wave Radiant Fraction for Blinds and Curtains (19)
Table9Transmission Factors for External Miniature Louvres (20)
Table10Sensible and Latent Gains from People (21)
Table11Radiant Fraction for Casual Gains (22)
Table12Winter Design Temperatures and Air Changes (23)
Table13Heat Emitter Radiant Fraction (26)
Table14Solar Absorptivity (27)
Table15Thermal Resistances of Air Gaps (28)
Table16Diffusion Resistance Factors (30)
Table17Permeances (31)
Table18Vapour Resistivities (32)
Table21Inside Surface Resistance(Table A3.5CIBSE Guide) (34)
Table22Outside Surface Resistance(Table A3.6CIBSE Guide) (35)
Table23Emissivities of Various Materials(Table C3.7CIBSE Guide) (36)
Table1Ground Reflectance
General Situation Typical Kr
Temperate localities0.2
Tropical localities(humid)0.2
Tropical localities(arid)0.5 Source:CIBSE Guide
Environment Typical Kr
Snow(fresh)0.8-0.9
Snow(old)0.45-0.7
Water0.1-0.2
Ice0.7
Grass0.25
Crops&woodland0.2
Concrete0.3
Brick0.2-0.4
Asphalt0.15
Source:Climate in the UK by Page&Lebens.
Table2Precipitable Water Vapour Depth(In Metres)
Altitude Latitude
(air pressure)030456070 Warm or wet season
1000mb mean0.050.040.0250.020.018 min.0.020.020.010.0070.007 max.0.10.070.040.040.04
900mb mean0.030.0190.0160.01250.011 min.0.010.0070.0070.0040.004 max.0.070.040.040.020.02
800mb mean0.020.0150.010.0080.007 min.0.010.0070.0040.0040.002 max.0.040.040.020.020.02
700mb mean0.010.0080.0050.0040.0035 min.0.0040.0040.0020.0020.001 max.0.020.020.010.010.01
Cold or dry season
1000mb mean0.030.0150.0080.0050.003 min.0.010.0040.0040.0020.001 max.0.070.040.020.010.01
900mb mean0.020.010.0050.00350.002 min.0.0070.0040.0020.0020.001 max.0.040.020.010.010.007
800mb mean0.010.0060.0030.0020.001 min.0.0040.0020.0010.0010.0005 max.0.020.020.010.0070.002
700mb mean0.0060.0030.00150.0010.0005 min.0.0020.0010.0010.00050.0002 max.0.010.010.0040.0020.001
From'Solar Radiation',ed.by N.Robinson.Maps from Engineering Data Unit.
Table3Dry-Bulb Temperatures See CIBSE Guide A Table A2.28.