A ton of refrigeration ( eng. Ton of refrigeration [1] [2] ) is a historical, off-system unit of power used in North America to measure the cooling capacity of industrial refrigeration units and air conditioning systems. One ton of cooling is equal to the thermal power required for melting in 24 hours of one short ton of pure ice at an initial temperature of 0 ° C (32 ° F). The American cooling ton is 3320 kcal / h, the British - 3024 kcal / h [1] .
The unit appeared during the transition from storage in glaciers with regularly updated ice to refrigeration machines. A machine with a cooling capacity of one ton of cooling is equivalent to a glacier, in which one short ton of ice is completely consumed per day.
See also
- Specific heat of fusion
- British thermal unit
Notes
- ↑ 1 2 M. B. Rosenberg, I. M. Gindlin. English-Russian refrigeration dictionary. - Ripol Classic, 2013 .-- ISBN 9785458488631 .
- ↑ NIST Guide to the SI, Appendix B.9