Does anyone know how much BTU heat needed for 15000lbs water at 10C to turn into ice at -7.8C?
What is the proper set temperature for Ice rink?
Your help is appreciated!!
You do know the answers are in your text books, don't you.
How many BTUs does it take to lower 1 pound of water 32°F.
How many BTUs to turn 1 pound of water to ice.
Multiply by 15,000 and you will have the answer.
What helps me is to draw out the sensible/latent chart. Latent heat of fusion is 144 BTUs and latent heat of evaporation is 970 BTUs.
The formula we get is Q=SH*W*TD for sensible heat. Being your Sensible heat*weight*temperature difference. Latent heat in your case would be the latent heat of fusion. So as beenthere stated multiply that (144)*15000.
Remember SH for ice and steam is 0.5 and water is 1.