Energy Required To Heat Water Calculator

E c p dt m 1.

Energy required to heat water calculator.

You can calculate the energy required to raise the temperature of water or any given substance for that matter using this formula. M mass of water heated 700 gallons 5810 lbs c p is the heat capacity of water 1 btu lb ºf given δt temperature difference 120 ºf 55 ºf. Q m c δt. The following formula is used to calculate the power of heating element needed to heat a specific volume of water by a given temperature rise in 1 hour.

C refers to the specific heat of the material. Read on to learn how to apply the heat capacity formula correctly to obtain a valid result. 2 c to 2 c or from fluid to gas e g. Dt temperature difference between the hot water and the surroundings o c o f m mass of water kg lb m.

δt refers to the temperature change that occurs. But when the state of water changes from solid to fluid e g. Specific heat is the amount of thermal energy you need to supply to a sample weighing 1 kg to increase its temperature by 1 k. Heat will transfer from a warm body with higher temperature to a colder body with lower temperature.

Q refers to the heat required. Heat energy required to heat 700 gal can be calculated as follows. Your selection of a water heater using gallon s per day will have a energy cost savings per water heater over an estimated 13 year life expectancy compared to the model. Water is often used to store thermal energy.

M refers to the mass of the material. The british thermal unit or btu is an energy unit. 98 c to 102 c this does not hold true any more. Hi john it takes the same amount of energy to heat water from 48 degrees to 52 degrees as it takes to heat water from 58 degrees to 62.

1 watt is approximately 3 412 btu per hour. Other units used to quantify heat are the british thermal unit btu the amount of heat to raise 1 lb of water by 1 o f and the calorie the amount of heat to raise 1 gram of water by 1 o c or 1 k. To calculate the heat required determine the variables. This specific heat calculator is a tool that determines the heat capacity of a heated or a cooled sample.

1 btu 1 055 joules 252 calories 0 293 watt hour or the energy released by burning one match. If we can calculate the volume of water and the required temperaure rise we can answer this question. Energy stored or available in hot water can be calculated. 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.

Assumptions base model has an efficiency that just meets the national minimum standard for gas and electric water heaters. Heat energy the si unit of heat or energy is joule j.