The watt (symbol W) is a derivative of the international unit of power, which is defined as 1 joule per second and is used to quantify the rate of energy transfer, e.g. for measuring the power of electrical appliances and calculating energy consumption.
2.1 Definition of BTU: British Thermal Unit per hour (symbol: Btu/h). The unit is usually abbreviated as Btu, and 1 watt is approximately equal to 3.412142 Btu/h. The specific definition of BTU is the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.
2.1 Usage of BTU: British Thermal Unit/hour is not a widely used unit, kilowatt hour is more commonly used.
There is no direct relationship between watts and BTUs, but it is possible to convert watts to BTUs per hour or BTUs per hour to watts, ideally one watt is equal to 3.412142 BTUs per hour. this conversion is mainly used in different areas, such as home appliances, refrigeration systems, etc. The exact calculation is as follows:
1 watt = 3.412142 BTUs per hour
BTU per hour = watts x 3.412142
3.1 For example, convert 100 watts to BTU per hour and substitute into the above formula.
BTU per hour = 100W x 3.412142 = 341.2142 BTU/hour
3.2 For example, to convert 20 watts into BTU per hour, substitute the above equation.
BTU per hour = 20W x 3.412142 = 68.24284 BTU/h
3.3 For example, if a one-horsepower air conditioner is purchased and the living room has a usable area of 15 square meters, how much cooling capacity is required? (air-conditioning refrigeration unit for pi, 1 pi of the cooling capacity of about 2000 calories converted to international units multiplied by 1.162, so a pi of cooling capacity of 2000 × 1.162 = 2324W, the average household per square meter of the cooling capacity required for about 120W)
The cooling capacity required for the room is: 120W×15=1800W.
So the cooling capacity of a one-horsepower air conditioner can be satisfied.
3.4 For example, if the solar energy system generates 10KWh of electricity per day, how much is converted into BTU?
10KW = 10000W BTU per hour = 10000W x 3.412142 = 34121.42 BTU/h
