subsea Posted February 23, 2009 Share Posted February 23, 2009 The evaporation of 1 pound of water transfers 1000 BTU's of cooling to the water. One gallon evaporation per hour transfers 8400 BTU and is equivalent to 2/3 HP chiller running non stop. One ton or refrigeration is equal to 12,000 BTU/HR, which is equal to about 1 HP. Most hoobiest chillers are rated for a 50% duty cycle. It would take a 1 HP chiller or bigger to equal the heat removal of 1 gallon per hour of evaporation. In a previous system, which I ran outdoors in SW Louisiana, I was able to maintain all temperatures below 79 degrees. On a 500 gallon system, I required about 5 gallons of make up water per day. Pat Link to comment Share on other sites More sharing options...
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