Webq = h e m (1) where. q = evaporation heat (kJ, Btu) h e = evaporation heat (kJ/kg, Btu/lb) m = mass of liquid (kg, lb) Example - Calculate heat required to evaporate 10 kg of water. The latent heat of evaporation for water is 2256 kJ/kg at atmospheric pressure and 100 o C. WebSep 28, 2014 · It takes 8.33 BTU to raise the temperature of water 1 degree F. If water weighs 8.34 pounds per gallon how much Btu to raise the temperature of 4 gallon of …
Time for temperature of water to raise Physics Forums
WebProSonix™ manufactures direct steam injection heaters that provide fluid heating solutions to customers around the globe. As the global leader in steam injection heating solutions, we are the recognized innovator in the design and manufacture of direct steam injection heating solutions for industrial process and utility fluid heating ... WebBasically 1 BTU will move 1 pound of water 1 degree Fahrenheit. There are 8.35 lbs in 1 gallon. There are 8.35*5=41.75 lbs in 5 gallons. To take water from 75 to 212 therefore requires: (212-75)*41.75=5720 BTU. How many BTU does it take to boil 20 gallons? Water that is at boiling has 180 btus in it, per lb. porsche for sale in my area
HVAC Chapter 1 Fundamentals of Heat Flashcards Quizlet
WebSep 13, 2011 · The specific heat of water is 1 BTU per pound per degree Fahrenheit. There are 8.3378 lbs/gallon at 60 degrees, which equals 3251.742 pounds of water. The number … WebTherefore, Q = (1 BTU/lb-°F) (8.33 lb) (142 °F) = 1183 BTUs (amount of heat energy required) So, to raise 1 gallon of water from 70 to 212 °F, it will take 1183 BTUs. If we want 2 gallons of water heated to the same temperature, then twice as much energy is needed to achieve the same result. View chapter Purchase book Flaring WebBasically 1 BTU will move 1 pound of water 1 degree Fahrenheit. There are 8.35 lbs in 1 gallon. There are 8.35*5=41.75 lbs in 5 gallons. To take water from 75 to 212 therefore … iris sutherland ross