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--- hvac:swamp_cooler [2019/05/27 15:46]
frater_secessus [evaporative coolers]
+++ hvac:swamp_cooler [2019/05/27 15:54]
frater_secessus [evaporative coolers]
@@ Line 2: / Line 2: @@
 [[http://amzn.to/2Diz4nm|{{ https://images-na.ssl-images-amazon.com/images/I/41V5c1TuNkL._AC_US218_.jpg?200}}]]
-Evaporative coolers, sometimes called //swamp coolers//, are an option in areas with low humidity.  They do not cool by a certain number of degrees, but rather [[https://en.wikipedia.org/wiki/Evaporative_cooler#Applications|output air ~5-7F]] above [[https://phoenixmanufacturing.com/calculators/evaporative-cooling-sizing-calculator/|wet bulb thermometer]] reading.  Standard sizing is cooler cfm = cubic feet of area / 2.((https://phoenixmanufacturing.com/calculators/evaporative-cooling-sizing-calculator/))
+Evaporative coolers, sometimes called //swamp coolers//, are an option in areas with low humidity.  They do not cool by a certain number of degrees, but rather [[https://en.wikipedia.org/wiki/Evaporative_cooler#Applications|output air ~5-7F]] above [[https://phoenixmanufacturing.com/calculators/evaporative-cooling-sizing-calculator/|wet bulb thermometer]] reading.
+Standard sizing is cooler cfm = cubic feet of area / 2.
+((https://phoenixmanufacturing.com/calculators/evaporative-cooling-sizing-calculator/))
+Example: a long wheelbase, high roof transit is 411 cubic feet.  Theoretically that would be 205.5cfm, but additional challenges of vanlife (direct sun, less insulation) make 411cfm a safer bet.
-Working backwards from residential numbers, it takes about 7gals/hour for 1500sq ft house.  For a 50sq ft van like an American low-roof, that would be .23gal/hour.  So ~2 gallons y for 8hrs of cooling, ~4 gallons for 16 hours, and ~6 gallons every 24 hours.((http://www.cheaprvliving.com/forums/showthread.php?tid=28601&pid=360091#pid360091))
+Concerning water consumption (Working backwards from residential numbers), it takes about 7gals/hour for 1500sq ft house.  For a 50sq ft van like an American low-roof, that would be .23gal/hour.  So ~2 gallons for 8hrs of cooling, ~4 gallons for 16 hours, and ~6 gallons every 24 hours.((http://www.cheaprvliving.com/forums/showthread.php?tid=28601&pid=360091#pid360091))  Our Transit example might consume 1.5x those amounts.
 The main manufacturer of RV swamp coolers is [[https://turbokool.com/|Turbokool]].

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