What’s air conditioner Btu? In North America and lots of nations, the unit for warmth in used immediately remains to be British Thermal Unit or Btu. In different nations, the SI metric system Joule is used. Figuring out the equal of each unit is important as lots of the product information sheets are utilizing each items.
Btu stands for British thermal unit and is outlined as the quantity of warmth wanted to extend the temperature of 1 pound of water by 1 °F.
1 Btu is required to extend the temperature of 1 pound of water from 63 °F to 64 °F. In SI metric, the equal is 4.187 kJ is required to extend the temperature of 1 kg of water from 17 °C to 18 °C.
Instance 1: Discover the quantity of warmth wanted to extend the temperature of fifty lb. of water from 50 °F to 80 °F.
Reply:
Warmth required = weight in lb. X temperature change in °F
= 50 lb. X (80-50)°F
= 50 X 30 Btu
= 1,500 Btu
Instance 2 (SI metric): Discover the quantity of warmth wanted to extend the temperature of 2kg of water from 5 °C to 30 °C.
Reply:
Warmth required in KJ = 4.817 X mass in kg X temperature change in °C
= 4.817 X 2kg X (30-5)°C
= 4.817 X 2kg X 25 °C
= 240.85 kJ
If the water is cooled, warmth is faraway from the it.
Equivalents
1 Btu = 1.055kJ
1 kJ = 0.948 Btu
Refrigeration Unit
Ton of refrigeration unit has been used for a very long time and it represents the warmth that’s absorbed when 1 ton or 2,000lb. of ice melts in 24 hours. The ice is assumed to be at 32 °F (0 °C) and melted to turn out to be water on the identical temperature. The extra generally used unit to charge a HVAC tools is in Btu/hr.
1 ton of refrigeration impact = [Weight of 1 ton of ice (2000 lb.) X latent heat of melting of ice (144 Btu/lb)]/24 hours
= [(2,000 X 144)/24] Btu/hr
= [288,000/24] Btu/hr
= 12,000 Btu/hr
Therefore, a 12,000 Btu/hr cooling capability is equal to 1 ton of refrigeration.
Calculation In SI Metric Items
Latent warmth is 335 kJ/kg
1 ton is about 907 kg
1 ton of refrigeration impact = [907kg X 335kJ/kg]/[24 X 3600 sec]
= 3.5167 kJ/sec
= 3.5167 kW
Air Conditioner Btu Equivalents Abstract
1 Btu/hr = 0.29W
1 kW = 3415 Btu/hr
1 ton = 12,000 Btu/hr
Again To Air Conditioner Btu Dwelling Web page
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