Cooling & Heating Load Calculator
Estimate the thermal equipment capacity required to condition an indoor space. Calculate sensible temperature shifts, latent ambient moisture adjustments, and building envelope insulation conduction variables concurrently.
Ambient Environment Parameters
Total Estimated Cooling Equipment Capacity Required
33333 BTU/h
= 2.78 Tons of AC
Sensible Airflow Load
32533 BTU/h
Latent Moisture Load
800 BTU/h
HVAC Psychrometric Airflow Verification Trace
How Building Thermal Loads Are Evaluated
In environmental engineering and building management science, sizing a heating, ventilation, and air conditioning (HVAC) system accurately requires splitting the total energy load into two distinct physical components: Sensible Heat and Latent Heat.
1. Sensible Heat Loads
Sensible heat refers to thermal energy transfers that result in a direct change in room air temperature without changing moisture levels. This energy flows into a room via solar radiation through windows, conduction through insulated walls (building envelope), operational lighting/appliances, and the body heat of human occupants.
2. Latent Heat Loads
Latent heat represents the energy required to remove or add moisture to the indoor air to maintain a comfortable humidity level. This load is heavily influenced by outdoor fresh air ventilation requirements, air infiltration gaps, and moisture released by occupants through respiration and perspiration.
By solving both fields alongside conduction coefficients simultaneously, engineers can convert the aggregate heat extraction demand into a precise refrigeration standard unit profile known as Tons of AC (where 1 Ton equals 12,000 BTU/h of heat extraction capacity).