WebWater is often used to store thermal energy. Energy stored - or available - in hot water can be calculated. E = c p dt m (1). where . E = energy (kJ, Btu) c p = specific heat of water (kJ/kg o C, Btu/lb o F) (4.2 kJ/kg o C, 1 Btu/lb m o F for water). dt = temperature difference between the hot water and the surroundings (o C, o F))m = mass of water (kg, lb m) WebOct 2, 2014 · Ok so one of the kids in my class had this for the first question: 40 gallons * 8.3 lbs/gallons = 332 lbs 332lbs * 50 deg F = 16,600 Btu = 4.89 kW 4.89 kWh/20kW = 0.245 Hours or 14 minutes approximately Oct 2, 2014 #10 haruspex Science Advisor Homework Helper Insights Author Gold Member 2024 Award 39,603 8,864 EnergyKitty said:
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WebMay 17, 2024 · The British thermal unit (BTU) is defined similarly but talks about raising the temperature of a pound of H 2 O by 1 degree Fahrenheit. Hopefully, you see how the water … WebJul 3, 2012 · A British Thermal Unit (BTU) is a measurement of heat energy. One BTU is the amount of heat energy required to raise one pound of water by 1ºF. Water weighs 8.33 … circle shaped tree
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WebThe temperature of the water coming into the heater. Your contactor will then determine how many BTUs per gallon the tankless heater needs to raise the incoming water to 120 degrees. In North Carolina, the average ground water temperature coming into your home is 62 degrees. The BTUs needed per-gallon to raise that temperature to 120 degrees is ... WebAug 15, 2010 · 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.... 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 ... circle shaped work stations