WebIt was originally defined as the rate of heat transfer that results in the freezing or melting of 1 short ton (2,000 lb; 907 kg) of pure ice at 0 °C (32 °F) in 24 hours. The modern definition is exactly 12,000 BTU/h (3.516853 kW). Air-conditioning and refrigeration equipment capacity in the U.S. is often specified in "tons" (of refrigeration). WebJun 8, 2010 · From high school science class; it takes 144 BTUs to melt a pound of ice. That takes it to 32 degrees F. To then raise the temp to 72 deg., would take about 40 more BTUs. If one pound...
btu calculations Flashcards
WebHow many Btus are required to change one pound of ice at 20 F to steam 220 F? 1,304 btu/h 7.- How many Btu's are required to change five pounds of ice al 20F to steam al 220°F? 6,520 btu/h 8.- How many Btus must be removed from one pound of water at 200 F for it to end up as ice at 30°F ? 313 btu 9.- WebMay 12, 2024 · How many Btus does it take to melt 2000 lbs of ice? 288,000 Btus Bob said, “A ton of ice is 2,000 pounds. It takes 288,000 Btus to melt one ton of ice (144 Btus per pound x 2000 pounds = 288,000 Btus). If this is accomplished in a 24-hour period, that is a rate of one ton of ice per 24 hours, or a rate of 12,000 Btus per hour (288,000 Btus/24 ... grapes of wrath barnes and noble
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WebNov 18, 2024 · It takes 288,000 Btus to melt one ton of ice (144 Btus per pound x 2000 pounds = 288,000 Btus). How many Btus must be added to a pound of water in order to vaporize the entire quantity? That one pound of water must absorb 970 Btu’s before it all turns to steam, and will stay at 212°F during the process. That’s one match required to … WebIt takes about 144 Btu/pound to melt ice, and warming the water from 32 F to say, 72, requires another 40 Btu. Say 200 Btu/lb in round numbers. So each hour of summer AC requires 75 pounds of ice to begin with, ignoring the heat leaks to the ice battery itself. WebSep 8, 2024 · It takes 144 BTU's to melt 1 pound of ice into 32F water. So 100 pounds of ice x 144 BTU's = 14,400 BTU's. Now we take 120F – 32F = 88F. How many BTUs does it take to convert water to steam? You have all heard of the BTU of heat energy (British Thermal Unit), it takes one BTU to raise one pound of water one degree Fahrenheit. grapes of wrath audiobook torrent