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환기율용다른공간

Recommended 공기 change rates per hour (ach) for various building types 과 spaces.

airchangerates

Overview

Engineering reference data for Air Change Rates for Different Spaces 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

Symbol Description Unit
QQ Heat transfer W
m˙\dot{m} Mass flow rate kg/s
cpc_p Specific heat of air J/(kg·K)
ΔT\Delta T Temperature difference K

References