HomeCalculatorsHVAC Cooling Load (Sum of Components)

HVAC Cooling Load (Sum of Components)

Total sensible + latent cooling load - sum of solar gain, transmission, infiltration, occupants, lighting, equipment, fresh-air make-up.

HVAC
Raw load
30.50kW
Sized load (with margin)
33.55kW
Formula, assumptions, and limits

Sensible + latent combined. For proper HVAC sizing split sensible and latent and run a coil-selection program (sensible heat ratio matters for dehumidification). Shipboard AC typically sized at 10–15 % margin.

Symbol legend

SymbolMeaningUnitSource
Solar gain via glazingkWCLTD / ASHRAE Ch.18
Wall / deckhead conductionkWU·A·ΔT
Air leakagekWACH × vol × Δh
Occupant sensible + latentkWASHRAE 110 W/person
Margin factor - designer