2018 RETA Breeze Jul-Aug

refrigeration is the rate of transfer of 288,000 BTUs over a 24-hour period.

can chill 1 case per hour. How many hours ahead of the party must be put the beer in the cooler? 2.6 Bob’s refrigeration system is rated for 17 tons/day. Unfortunately, all of his cooling must be done in an 8-hour window. How many tons of practical refrigeration does Bob have? 2.7 Jimmy’s refrigeration system can chill 75 carcasses in a day. How many can he chill in 14 days? 2.8 Chris’s refrigeration system is rated for 3 tons/day. How many tons is it capable of in 8 hours? 2.9 Jackie’s refrigeration system is rated for .017 tons of refrigeration per minute.

If ran for 24 hours, how many tons of refrigeration per day would it be rated for? 2.10 If we decided to lower the temperature of 14,000 pounds of water by 15 degrees in 4 hours, how many TR would be required? If you are still having trouble with these calculations, please continue to practice. Next time, we’ll look at sensible and latent heat equations. See page 18 for answers. Should you have any corrections or additional information pertaining to this article please forward them to sara@reta.com

When calculating refrigeration not all tons are created equal, while a ton of refrigeration is 288,000 BTU/24 hours, it is also 12,000 BTU/hr. e time element is essential. If the time element is ignored the refrigeration e ciency will su er. Let’s look at some examples. 2.5 Jay is holding a super bowl party. He has decided to pick up 4 cases of beer. His calculation shows that his beer cooler

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