Cooling Load Factors: rts_zone_characteristics
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 | construction class | exterior wall | floor | furnishings | partitions | roof ceiling |
|---|---|---|---|---|---|---|---|
| rts_zone_characteristics | class_heavy | Heavy | 100 mm face brick, 200 mm HW concrete air space, 50 mm insulation, 19 mm gyp. | Acoustic tile, ceiling air space, 200 mm HW concrete | 25 mm wood @ 50% of floor area | 19 mm gyp., 200 mm HW concrete block, 19 mm gyp. | 200 mm HW concrete, ceiling air space, acoustic tile |
| rts_zone_characteristics | class_light | Light | Steel siding, 50 mm insulation, air space, 19 mm gyp. | Acoustic tile, ceiling air space, 100 mm LW concrete | 25 mm wood @ 50% of floor area | 19 mm gyp., air space, 19 mm gyp. | 100 mm LW concrete, ceiling air space, acoustic tile |
| rts_zone_characteristics | class_medium | Medium | 100 mm face brick, 50 mm insulation, air space, 19 mm gyp. | Acoustic tile, ceiling air space, 100 mm HW concrete | 25 mm wood @ 50% of floor area | 19 mm gyp., air space, 19 mm gyp. | 100 mm HW concrete, ceiling air space, acoustic tile |
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below_grade_floor3 rowsbelow_grade_wall3 rowscomputer_heat_gain3 rowsconstruction_material3 rowscooking_electric_hooded3 rowscooking_electric_unhooded3 rowscooking_gas_hooded3 rowscooking_gas_unhooded3 rowsglazing_optical3 rowsheat_gain_rad_conv3 rowslighting_power_density3 rowsluminaire_heat_fractions3 rows