NASHVILLE
JEFFERSONVILLE
 |
 |
OTHER FORMULAS FOR SIZING A COOLING UNIT CONT. BTU=WEIGHT X DELTA T X SPECIFIC HEAT OF FLUID DIVIDED BY TIME IN HOURS EXAMPLE: 500 GALLON RESERVOIR OF WATER AT 90 DEG F. DESIRED TANK TEMP IS 60 DEG F. TO BE COOLED IN 2 HOURS 500 GALLONS X 8.3 POUNDS PER GALLON (FOR WATER) X 30 X SPECIFIC HEAT OF 1 (FOR WATER) = 124,500 BTU / TIME IN HOURS (2) = 62,250 BTU/HR EXAMPLE: 150 GALLON RESERVOIR OF DTE24 HYDRAULIC OIL AT 120 DEG F. DESIRED TANK TEMP IS 100 DEG F. TO BE COOLED IN 30 MINUTES. 150 GALLONS X 7.2 POUNDS PER GALLON (FOR DTE24) X 20 X SPECIFIC HEAT OF .486 (FOR DTE24 = 10,497.6 BTU / TIME IN HOURS (.5) = 20,995.2 BTU/HR
BELOW IS A CHILLER SELECTION CHART WHEN ACTUAL BTU HEAT LOAD IS KNOWN BTU/HR CHILLER MODEL TONNAGE 9,000 RC-0.75 0.75 12,000 RC-1 1.00 18,000 RC-1.5 1.50 24,000 RC-2 2.00 36,000 RC-3 3.00 48,000 RC-4 4.00 60,000 RC-5 5.00 90,000 RC-7.5 7.50 120,000 RC-10 10.00 144,000 RC-12 12.00 HOW TO USE THIS CHART: CHOOSE THE BTU (IN RED) FROM THE CHART THAT IS EQUAL TO OR GREATER THAN YOUR CALCULATED BTU HEAT LOAD. FOLLOW THE CHART TO THE RIGHT TO DETERMINE THE PROPER CHILLER MODEL AND TONNAGE YOUR SYSTEM REQUIRES. NOTE: MAXIMUM ENTERING FLUID TEMPERATURE IS 140 DEG F. IF YOU HAVE ANY QUESTIONS OR TROUBLE CHOOSING A CHILLER UNIT, FILL OUT A CHILLER MFG. QUOTE FORM WITH AS MUCH DATA AS POSSIBLE AND FAX TO 812-285-5508 OR CALL 800-334-2665 TO REACH RYAN AT EXT 209 OR CARTER AT EXT 206
Copyright Chiller mfg. 2004