About Units

Joules per second: Joules per second (J/s) is a unit of power equivalent to watts in the International System of Units (SI). One joule per second is the rate at which one joule of energy is transferred or converted in one second. It is commonly used in scientific contexts to measure energy transfer rates.

Tons of refrigeration: A ton of refrigeration (RT) is a unit of power used to describe the heat-extraction capacity of air conditioning and refrigeration equipment. One ton of refrigeration is equal to the rate of heat transfer needed to freeze 1 ton (2000 pounds) of water at 0°C in 24 hours, equivalent to 12,000 BTU per hour or approximately 3.517 kilowatts.