Hi Guys ive been trying to work out the fuel consumption for a car. i worked it out as below can you confirm if its correct or incorrect asap. ive been told by someone that they thinks its not possible to work out fuel consumption over a distance in KWh and has to be done in only KW, but i think you can. lemme know if im right or wrong please. range is 488 miles 4.2L of petrol consumed every 100km, equivelant to 0.042L in 1km therefore i found 1.6km in a mile so i worked out 0.0672L petrol consumed in a mile . converted this value into British Thermal Units. 27533 BTU in one litre of petrol therefore in 1 mile this is 0.672L x 27535=1850 BTU. coverting to watt-hours, i found 0.293Wh in one BTU therfore, 0.293x1850 = 0.54205KWh in one mile changing for 20 miles 0.54205 x 20=264.5204KWh i then adjusted this value for 70% efficiency losses at got a final answer of around 80KWh for 488 miles is this correct, can i have my final answer in KWh or does in have to be in watts. Thanks |