Energy

There are two kinds of energy-potential and kinetic. Potential energi is like a body of water controlled by adam. The water has a great petential for doing work; but, until the water flows though  water weel, no energy is produced. Kinetic energy is the energy of a moving body. The formula is KE = ½ MV² = foot Pounds.  M = Weight, divided by 32 (the acceleration due to gravity). V = Velocity in feet per second (fps).

a). Energy Equivalents – English

1 Btu                                = 778 ft.lb

                                         = 252 gram-calories

                                         = 1054 joules

1 Horsepower                = 33.000 ft.lb/min

                                         = 550 ft.lb/sec

                                         = 746 watt

                                         = 2545.6 btu/hr

                                         = 42.42 Btu/min

                                         = 1.014 hp (metric).

1 hosepower hour        = 1 horsepower for 1 hr

                                         = 1.980.000 ft.ib

                                         = 746 watt hours

                                         = .746 kilowatt hours

                                         = 2545 Btu

1 Kilowatt                        = 1000 watts

                                         = 1.34 horsepower

1kilowatt hour                = 1 kilowatt for hr

                                         = 1000 watt hours

b). Ice Melting Effect (IME)

1 ton of refrigeration     = 288.000 Btu/day

                                         = 12.000 Btu/hr

                                         = 200 Btu/min

                                         = 83.3 lb. Of ice/hr

c). Linear Mesuare Equivalents-English-Metric

           

1 inch                                          = 2.54 centimetres

                                                     = 25.4 millimetres

                                                     = 5.400 microns

1 food      = 12 inches              = .304 metres

                                                     = 30.48 cntimetres

1yard           = 3 feet                   = .914 metres

                                                     = 91.44 centimetres

1 micron                                      = .000.394 inches

1 millimetre = 1000 micron      = .0394 inches

1 centimetre= 10 millimtres     = .3937 inches

1 metre         = 100centimetre = 39.37 inches

1 kilometre   = 1000 metres     = 62137 miles

d). Energy Equivalents – Metric

Energy

1 dyne cm = 1 erg = .001 g cm = 7.38 x 10.8 ft ib

1 g cm = 980.6 ergs = 7.233 x 10.5 ft.lb

1 ft.lb = 13.557.300 ergs = 13.825.5 g cm

1 therm = 100.000 Btu

Rate of Energy

1 erg/sec = 1 dyne cm = 7.38 x 10.8 ft.lb/sec

1 g cm = 980.6 ergs/sec = 7.233 x 10.5 ft.lb/sec

1 ft.lb/sec = 13.557.300 ergs = 13.825.5 g cm/sec

e). Area Equivalents

1 q.in                               = .0065 sq. Metres

1 sq.ft      = 144 sq.in    = .093 sq metres

1 sq.yd    = 9 sq.ft          = .836 sq mtres

f). Volume Equivalents

1 cu.in                             = .016 litres

                                         = .16.39 centimetres

1 cu ft      = 1728 cu. In = 28.317 litres = .0283 metres

1 cu.yd    = 27 cu.ft

                 = 46.656 cu.in

1 gal        = .1337 cu.ft = 3.79 litres

                 = 231 cu.in    = 3785 centimetres

h). Heat equivalents

1 Btu                                = 258 calories

1 kilocalorie                    = 1000 calories

1 Btu/lb                           = .55 kcal/kg

1 Btu/lb                           = 2.326 kJ/kg

1 kcal/kg                                     = 1.8 Btu/lb

1 Btu/hr                           = .2931 watts