Cooling Load Factors: construction material
M10 to M17
ASHRAE cooling load calculation factors — people heat gain, lighting power density, luminaire heat fractions, motor efficiency, cooking/warewashing appliance heat gain, office/computer equipment heat gain, glazing optical properties, radiative/convective fractions, surface solar absorptance, wall and roof conduction time series (CTS), construction material layer properties, radiant time series (RTS), zone characteristics, and below-grade heat transfer coefficients. Source: ASHRAE Handbook Fundamentals 2021, Chapter 18.
| factor type | item id | conductivity W per mK (W/(m·K)) | density kg per m3 (kg/m3) | description | layer id | mass kg per m2 (kg/m2) | resistance R m2K per W ((m2·K)/W) | specific heat kJ per kgK (kJ/(kg·K)) | thermal capacity kJ per m2K (kJ/(m2·K)) | thickness mm (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| construction material | M10 | 0.7 | 801 | 200 mm concrete block (filled) | M10 | 162.7 | 0.29 | 0.92 | 150 | 203.2 |
| construction material | M11 | 0.53 | 1,281 | 100 mm lightweight concrete | M11 | 130.2 | 0.19 | 0.84 | 109.09 | 101.6 |
| construction material | M12 | 0.53 | 1,281 | 150 mm lightweight concrete | M12 | 195.3 | 0.29 | 0.84 | 163.64 | 152.4 |
| construction material | M13 | 0.53 | 1,281 | 200 mm lightweight concrete | M13 | 260.4 | 0.38 | 0.84 | 218.18 | 203.2 |
| construction material | M14 | 1.95 | 2,243 | 150 mm heavyweight concrete | M14 | 341.8 | 0.08 | 0.92 | 315 | 152.4 |
| construction material | M15 | 1.95 | 2,243 | 200 mm heavyweight concrete | M15 | 455.7 | 0.1 | 0.92 | 420 | 203.2 |
| construction material | M16 | 1.95 | 2,243 | 300 mm heavyweight concrete | M16 | 683.5 | 0.16 | 0.92 | 630 | 304.8 |
| construction material | M17 | 0.19 | 641 | 50 mm LW concrete roof ballast | M17 | 32.5 | 0.27 | 0.84 | 27.27 | 50.8 |
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