How to Calculate Mass or Volume of Fuel from Energy Generated

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SUMMARY

The discussion focuses on calculating the mass or volume of diesel fuel required to generate a specific energy output from an engine operating at 1200 rpm. Given an energy output of 10 kJ and a specific fuel consumption of 200 g/kWh, the conversion from kWh to kJ is essential for accurate calculations. The conversion factor is 1 kWh = 3600 kJ, allowing for the determination of fuel mass based on energy output and consumption rates.

PREREQUISITES
  • Understanding of energy units (kJ and kWh)
  • Knowledge of specific fuel consumption metrics
  • Basic principles of thermodynamics related to fuel energy
  • Familiarity with engine performance parameters (e.g., rpm)
NEXT STEPS
  • Learn how to convert energy units between kWh and kJ
  • Research specific fuel consumption calculations for diesel engines
  • Explore thermodynamic efficiency in internal combustion engines
  • Study the impact of engine speed on fuel consumption rates
USEFUL FOR

Engineers, automotive technicians, and anyone involved in fuel efficiency analysis or engine performance optimization.

montydc
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I have a value for energy output from the engine, like e.g. 10 kJ. I now need to calculate the mass/volume of fuel (diesel is used as fuel) to generate the above energy output from the engine if the engine is running at a speed of 1200 rpm and the specific fuel consumption (if needed at all) is 200 g/kWh.

Can someone provide me with the equations/calculation to do the above?
 
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Can't you convert kWh to kJ?
 

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