To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Ton of refrigeration

From Wikipedia, the free encyclopedia

ton of refrigeration
Unit ofPower
SymbolTR
Conversions
1 TR in ...... is equal to ...
   SI units   3.51685 kW
   Non-SI metric   3,025.97 kcal/h
   US Customary and Imperial   12,000.00 BtuIT/h
2,593.90 ft⋅lbf/s

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 was originally 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]

The modern definition is exactly 12,000 BtuIT/h (3.516853 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.

YouTube Encyclopedic

  • 1/3
    Views:
    36 350
    2 237
    8 280
  • What is a Refrigeration Ton + CALCULATIONS chiller hvac btu kw
  • What is 1 Ton of Refrigeration TOR (GATE) | Refrigeration & Air Conditioning | Thermodynamics |
  • Tons of Refrigeration In Hindi II TR

Transcription

History

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 steam power[3] 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 included growing percentages of 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.[4] In 1904 these efforts led to the founding of the American Society of Refrigerating Engineers (ASRE),[4] which was one of the predecessors of ASHRAE.

See also

References

  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. ^ "Horsepower", Encyclopædia Britannica Online. Retrieved 4 July 2022.
  4. ^ a b Rodengen 1997, pp. 18–36

Bibliography

This page was last edited on 19 August 2023, at 13:56
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.