1 BTU (british thermal unit) of heat energy will change the temperature of 1 pound of water by 1 degree Fahrenheit. If you are talking about 1 pound of water, since this is a change of 100 deg f, it would require 100 BTU. 2 pounds require 200 BTU. 3 pounds require 300 BTU. etc.
It doesn't work that way. There is not a certain number of btus to raise air temperature. You would have to know how much air. A BTU is the British Thermal Unit. That is the amount of energy required to raise the temperature of one pound of water one degree F.
110 deg C = 230 deg F.110 deg C = 230 deg F.110 deg C = 230 deg F.110 deg C = 230 deg F.
40 deg F = 4.44 deg C
112 deg F = 44.44... deg C
1 BTU (british thermal unit) of heat energy will change the temperature of 1 pound of water by 1 degree Fahrenheit. If you are talking about 1 pound of water, since this is a change of 100 deg f, it would require 100 BTU. 2 pounds require 200 BTU. 3 pounds require 300 BTU. etc.
I was doing some research on the same subject and found a formaula Mult num of cubic feet X.133 and by the number of degrees to heat = btu It is -15 deg out side inside 75 deg = 90 deg 90*50*17 *.133*90 = 915705 BTU Regards Ron H
@215 deg/f steam you calculate 240 btu/ ft.sq of radiation
Molten lava near the surface can reach 1200 deg. C, or 2200 deg. F.
To convert watts per meter squared per degree Celsius to BTU per hour per degree Fahrenheit, you can use the following conversion factors: 1 Watt per meter squared per degree Celsius = 0.317 BTU per hour per foot squared per degree Fahrenheit.
take 15gallons of ice from -15deg f to 140deg f
It doesn't work that way. There is not a certain number of btus to raise air temperature. You would have to know how much air. A BTU is the British Thermal Unit. That is the amount of energy required to raise the temperature of one pound of water one degree F.
900/7 = 128.57 deg approx.
Depending on the mean temperature of the ice, it will require between 0.463 and 0.504 BTU's to raise the temperature of 1 lb. of ice for each deg. F. So, 5 lb of ice raised from 3 deg.F to 10 deg.F will require 5 x (10-3) x ~0.504 = ~17.64 BTU.
It can reach 80 K ( = -190 deg C).
In Summer the temperature is between 20-30 deg C (it may reach upto 35) In Winter, the temperature is between 0 to -10 deg C (but may reach upto -20)
{Sigh} I hate English units. A BTU is defined as the amount of heat required to raise the temperature of 1 lb of water by 1 deg F. The basic relation is Q = mcdT Heat = mass * heat capacity * change in temperature. A gallon of water weighs about 8 lb, so you're talking about 500,000 gal * 8 lb/gal = 4 million pounds. The constant c for water, by the definition given above is 1 Btu/lb-deg F. So Q = 4 million pounds * 1 Btu/lb-degF * 32 deg F = 128 million BTU Note: 500,000 gal should be changed to 1250 gal or 3.2 million BTU?