Document 5DB2pz7vpb4MQekDezzYdLx1e

American Society of Heating and Ventilating Engineers Guide, 1937 Power, Heat, and Work 1 ton refrigeration Latent heat of ice 1 Btu 1 watthour 1 mean calorie 1 kilowatt (1000 watts) 1 horsepower 1 boiler horsepower -{12,000 Btu per hour 200 Btu per minute = 143.33 Btu per pound 777.5 ft-lb 0.293 watthours 252.02 mean calories ( 2,655.2 ft-lb I 3.415 Btu J 3600 joules 1 860.648 mean calories ! 0.003968 Btu \ 3.085 ft-lb l 0.0011619 watthours 1.3405 horsepower = 56.92 Btu per minute 44,252.7 ft-lb per minute 0.746 kilowatt 142.44 Btu per minute 33,000 ft-lb per minute 550 ft-lb per second = 33,471.9 Btu per hour Weight and Volume 1 gal (U. S.) 1 British or Imperial gallon 1 cu ft 1 cu ft water at 60 F 1 cu ft water at 212 F 1 gal water at 60. F 1 gal water at 212 F 1 lb (avdp) 1 bushel 1 short ton. 1 long ton Pressure 1 lb per square inch 1 oz per square inch 1 atmosphere ( 231 cu in. = 1 0:13368 cu ft = 277.274 cu in. f 7.4805 gal _ \ 1728 cu in. = 62.37 lb = 59.76 lb = 8.341b = 7.99 lb / 16 oz _ \ 7000 grains = 1.244 cu ft = 2000 lb = 2240 lb 144 lb per square foot 12.0416 in. mercury at 62 F 2.309 ft water at 62 F 27.71 in. water at 62 F I 0.1276 in. mercury at 62 F \ 1.732 in. water at 62 F 14.7 lb per square inch 2116.3 lb per square foot 33.974 ft water at 62 F 30 in. mercury at 62 F 29.921 in. mercury at 32 F 802 Chapter 44--Terminology j in. water at 62 F 0.03609 lb per square inch 0.5774 oz per square inch 5.196 lb per square foot j ft water at 62 F ! in. mercury at 62 F Metric Units 1 cm 1 in. 1m lft 1 sq cm 1 sq in. 1 sq m 1 sq ft 1 cu cm 1 cu in.. 1 cu m 1 cu ft 1 liter 1 kg lib 1 metric ton 1 gram 1 kilometer per hour 1 gram per square centimeter f 0.433 lb per square inch \ 62.355 lb per square foot 0.491 lb per square inch 17.86 oz per square inch 1.131 ft water at 62 F 13.57 in. water at 62 F = 0.3937 in. = 2.54 cm = 3.281 ft = 0.3048 m = 0.155 sq in. = 6.45 sq cm = 10.765 sq ft = 0.0929 sq m = 0.061 cu in. = 16.39 cu cm = 35.32 cu ft = 0.0283 cu m = 1000 cu cm = 0.264 gal = 2.2046 lb = 0.4536 kg = 2205 lb (avdp) = 980.59 dynes = 0.002205 lb = 0.6214 mph _ / 0.0290 in. mercury, at 0 deg C \ 0.394 in. water, at 15 C 1 kg per square centimeter (metric atmosphere) 1 gram per cubic centimeter = 14.22 lb per square inch _ / 0.03614 lb per cubic inch \ 62.43 lb per cubic foot 1 dyne 1 joule 1 metric horsepower 1 kilogram-calorie (large calorie) = 0.00007233 poundals _ / 10,000,000 ergs ~ \ 0.73767 ft-lb _ / 75 kg-m per second ~ \ 0.986 hp (U. S.) f 1000 gram-calories (small = < calorie) [ 3.97 Btu 1 kilogram-calorie per kilogram 1 gram-calorie per square centimeter = 1.8 Btu per pound ' = 3.687 Btu per square foot 1 metTr^'0"6 ^ s9uare centimeter Per centi-= (l.4pl Btu persquare foot perinch 1 gram-calorie per . second per square centimeter (2903 Btu per hour per square foot for a temperature graduation of 1 deg C per = i for a temperature graduation of centimeter. (1 deg F per inch of thickness. 803