Conversions Of Centigrade And Fahrenheit; Fuel Consumption Formulas; Electrical Motor Horsepower; Piston Travel - FG Wilson Generating Set Installation Manual

Conversions of Centigrade and Fahrenheit

Water freezes at 0 ºC (32ºF)
ºF= ( 1.8 x ºC ) + 32

Fuel Consumption Formulas

Fuel Consumption(lb / hr) Specific FuelCons.( lb / BHP / hr) xBHP
Fuel Consumption(US gal / hr )
FuelSpec.Weight( lb / US gal) FuelSpecific Gravity x 8.34 lb
Specific FuelConsumption(lb / BHP / hr )
Specific Fuel Consumption( kg / BHP / hr)

Electrical Motor Horsepower

Electrical Motor Horsepower =
Engine Horsepower Required =

Piston Travel

Feet Per Minute ( FPM) = 2 x L x N
Where L = Length of Stroke in Feet
N = Rotational Speed of Crankshaft in RPM
BREAK MEAN EFFECTIVE PRESSURE (BMEP) (4 Cycle)
792 , 000 x BHP
BMEP =
Total Displacement x RPM
Water boils at 100 ºC (212ºF)
Spec. Fuel Cons. (lb / BHP / hr) x BHP
FuelSpecific Weight(lb / US gal )
FuelCons.( US gal / hr) x FuelSpec. Wt (lb / US gal)
Spec.Fuel Cons.(lb / BHP / hr)
kW Input x Motor Efficiency
0.746 x Generator Efficiency
kW Output Required
0.746 x Generator Efficiency
25
ºC = 0.5555 ( ºF - 32 )
BHP
BHP