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Ventilation free area attic

Reference data et engineering information about ventilation free area attic pour hvac systems applications.

ventilationfreeareaattic

Overview

Engineering reference data for Ventilation Free Area Attic in HVAC systems.

Key Formulas

Sensible Heat

Q=m˙cpΔTQ = \dot{m} c_p \Delta T

Heat causing temperature change.

Latent Heat

Q=m˙hfgΔωQ = \dot{m} h_{fg} \Delta\omega

Heat causing moisture change.

COP (Cooling)

COP=Qc/WCOP = Q_c / W

Coefficient of performance.

Variables

SymbolDescriptionUnit
QQHeat transferW
m˙\dot{m}Mass flow ratekg/s
cpc_pSpecific heat of airJ/(kg·K)
ΔT\Delta TTemperature differenceK

References