Increasing torque via propane injection

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SUMMARY

The discussion centers on calculating the amount of propane gas required to increase the torque of a Vauxhall Omega diesel engine by 60 Nm during a dyno run. The user, Liam, seeks guidance on incorporating the heating value of propane into torque calculations, specifically for a 6-cylinder engine where the increase can be distributed as 10 Nm per cylinder. Key factors include understanding propane gas injection and its impact on engine performance metrics.

PREREQUISITES
  • Understanding of torque calculations, including cylinder pressure, piston size, and swept volume.
  • Knowledge of propane's heating value and its implications for combustion efficiency.
  • Familiarity with diesel engine dynamics and performance tuning.
  • Experience with dyno testing and performance measurement techniques.
NEXT STEPS
  • Research the heating value of propane and its role in combustion equations.
  • Learn about the effects of propane injection on diesel engine performance.
  • Explore torque calculation methods specific to multi-cylinder engines.
  • Investigate tuning strategies for optimizing diesel engines with alternative fuels.
USEFUL FOR

Automotive engineers, performance tuners, and students studying engine dynamics who are interested in enhancing diesel engine performance through propane injection techniques.

purplehayyze
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Hi all,
My problem is a question from my coursework.
The question is;
We are to inject propane gas into the diesel engine of the Vauxhall Omega on a dyno run.
Calculate how much gas is required to give the engine 60nm more torque?

obviously i can appreciate some people may not want to answer the question for me and that's not what I am after, i know how to calculate torque from cylinder pressure using piston size, swept volume, clearance volume etc. BUT the problem i have is, i can't find any info on propane gas injection and the sort of numbers i will have to factor into my equations.

The car in question is also a 6 cylinder vehicle so calculations can be made for 10nm per cylinder.

Any help or guidance will be greatly appreciated
Many thanks,
Liam
 
Physics news on Phys.org
Step 1: Determine heating value of propane.
 
Thanks for the reply i have found the heating value of propane but how do i implement this into any kind of equation
 

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