Calcolatore Carico Termico Estivo Gratuito

Stima il carico di raffreddamento estivo e la potenza del condizionatore necessaria.

sq ft
BTU/sqft
people
W

Total Heat Gain

50,812 BTU/hr

Cooling Tons4.2 tons
Envelope Component45,000 BTU/hr

Total Heat Gain vs Floor Area

Formula

## Cooling Load (Heat Gain) **Total = Envelope Gain + People Gain + Appliance Gain** Envelope gain uses a factor of 20 to 40 BTU per sq ft depending on climate and insulation. Each person adds about 600 BTU/hr. Appliances convert at 3.412 BTU per watt. One ton of cooling = 12,000 BTU/hr.

Esempio Risolto

1,500 sq ft, 30 BTU/sqft factor, 4 people, 1000W appliances.

  1. 01Envelope = 1500 x 30 = 45,000 BTU/hr
  2. 02People = 4 x 600 = 2,400 BTU/hr
  3. 03Appliances = 1000 x 3.412 = 3,412 BTU/hr
  4. 04Total = 50,812 BTU/hr = 4.2 tons

Domande Frequenti

What BTU per sqft factor should I use?

Hot/sunny climate: 30-40. Moderate climate: 20-30. Cool climate with good insulation: 15-25. South-facing rooms with large windows use higher values.

How much heat does a person generate?

A sedentary person generates about 400 BTU/hr sensible and 200 BTU/hr latent (moisture). Active occupants generate more. The 600 BTU/hr figure is a common combined estimate.

Impara

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