Convert energy units. Easily convert british thermal units to million btu, convert Btu to MMBtu. Many other converters available for free. Ton-hour (refrigeration) Conversion Factors - Energy All Energy Conversion Tables.

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How to convert refrigeration tons to BTU/hrHow to convertin refrigeration tons (RT) to BTU per hour (BTU/h). Tons to BTU/hr conversion formulaOne refrigeration ton is equal to 12000 BTUs per hour:1 RT = 12000 BTU/hrOne BTU per hour is equal to 8.33333×10 -5refrigeration ton:1 BTU/hr = 8.33333×10 -5 RTSo the power P in BTUs per hour (BTU/hr) is equal to 12000times the power P in refrigeration tons (RT):P (BTU/hr) = 12000 × P (RT)ExampleConvert 2 RT to BTU/hr:P (BTU/hr) = 12000 × 2 RT = 24000BTU/hrSee also.

A ton of refrigeration (TR or TOR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat-extraction capacity of refrigeration and air conditioning equipment.It is defined as the rate of heat transfer that results in the freezing (*or melting) of 1 short ton (2,000 lb; 907 kg) of pure ice at 0 °C (32 °F) in 24 hours.^[1][2]

A refrigeration ton is approximately equivalent to 12,000 BTU/h or 3.5 kW.Air-conditioning and refrigeration equipment capacity in the U.S. is often specified in 'tons' (of refrigeration). Many manufacturers also specify capacity in BTU/h, especially when specifying the performance of smaller equipment.

*It's important to note that the freezing or melting of the ice represents a change-of-state only, which is considered a transfer of latent heat, as opposed to a change in temperature which is a transfer of sensible heat.

History[edit]

The ton of refrigeration is equivalent to the consumption of one ton of ice per day and originated during the transition from stored natural ice to mechanical refrigeration. Just as horsepower and candlepower were intuitive units of measure for people living through the transition from horse to motorized transport and from flame-based to electric lighting, so was the ton of refrigeration an intuitive unit of measure during a technological change, as the ice trade gradually adopted over more artificial ice (ice from ice-making plant) in addition to its natural ice supplies. The TR unit was developed during the 1880s. Its definition was set at the level of an industry standard in 1903, when Thomas Shipley of the York Manufacturing Company led the formation of an industry association (the Ice Machine Builders Association of the United States) along with standardization of several equipment specifications.^[3] In 1904 these efforts led to the founding of the American Society of Refrigerating Engineers (ASRE),^[3] which was one of the predecessors of ASHRAE.

See also[edit]

References[edit]

1. ^Marks' Standard handbook for Mechanical Engineers, 8th Ed., McGraw Hill, p. 19–3
2. ^'NIST Guide to the SI'. National Institute of Standards and Technology. Retrieved 2007-05-18.
3. ^ ^abRodengen 1997, pp. 18-36

Bibliography[edit]

• Rodengen, Jeffrey L (1997), The Legend of York International, Write Stuff Syndicate Inc, ISBN9780945903178, LCCN95062225, OCLC37507402.