Spark or Squeeze: Why Petrol and Diesel Engines Burn Differently
In short: Why a petrol engine lights its fuel with a spark while a diesel relies on hot compressed air, how knock and pre-ignition limit compression, what each design trades away, and what engineers still don't fully understand.
A 2:08 short film in the series “Why Did…?”, narrated by intellect_voice_01.
Sources used in this film: U.S. Energy Information Administration (EIA), “Gasoline explained - octane in depth - U.S. Energy Information Administration (EIA)”; PubMed Central (US National Library of Medicine, NIH), hosting an author manuscript of a peer-reviewed study on the cardiovascular effects of inhaled diesel exhaust in rats. It covers diesel emission…, “Biological effects of diesel exhaust inhalation. III cardiovascular function”; U.S. Energy Information Administration (EIA), “Gasoline and the environment - U.S. Energy Information Administration (EIA)”; U.S. Department of Energy (Transportation Technologies Office), “Advanced Combustion Strategies”; Encyclopaedia Britannica, “Diesel engine | Definition, Development, Types, & Facts | Britannica”; Argonne National Laboratory (US Department of Energy), “Insights into Engine Knock: Comparisons of Knock Metrics across Ranges of Intake Temperature and Pressure in the CFR Engine”; PubMed Central (US National Library of Medicine), hosting a peer-reviewed research article on spark-ignition engine knock, “Numerical investigation for optimization of spark-ignition internal combustion engine knock by Taguchi-Grey method”.
Sources used in this film
- U.S. Energy Information Administration (EIA) — Gasoline explained - octane in depth - U.S. Energy Information Administration (EIA) · View →
- PubMed Central (US National Library of Medicine, NIH), hosting an author manuscript of a peer-reviewed study on the cardiovascular effects of inhaled diesel exhaust in rats. It covers diesel emission… — Biological effects of diesel exhaust inhalation. III cardiovascular function · View →
- U.S. Energy Information Administration (EIA) — Gasoline and the environment - U.S. Energy Information Administration (EIA) · View →
- U.S. Department of Energy (Transportation Technologies Office) — Advanced Combustion Strategies · View →
- Encyclopaedia Britannica — Diesel engine | Definition, Development, Types, & Facts | Britannica · View →
- Argonne National Laboratory (US Department of Energy) — Insights into Engine Knock: Comparisons of Knock Metrics across Ranges of Intake Temperature and Pressure in the CFR Engine · View →
- PubMed Central (US National Library of Medicine), hosting a peer-reviewed research article on spark-ignition engine knock — Numerical investigation for optimization of spark-ignition internal combustion engine knock by Taguchi-Grey method · View →
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Sources
- Summary by Intellect · source: U.S. Energy Information Administration (EIA): Gasoline explained - octane in depth - U.S. Energy Information Administration (EIA)
- Also: PubMed Central (US National Library of Medicine, NIH), hosting an author manuscript of a peer-reviewed study on the card: Biological effects of diesel exhaust inhalation. III cardiovascular function
- Also: U.S. Energy Information Administration (EIA): Gasoline and the environment - U.S. Energy Information Administration (EIA)
- Also: U.S. Department of Energy, Transportation Technologies Office: Advanced Combustion Strategies
- Also: Diesel engine | Definition, Development, Types, & Facts | Britannica
- Also: Argonne National Laboratory (US Department of Energy): Insights into Engine Knock: Comparisons of Knock Metrics across Ranges of Intake Temperature and Pressure in the CFR Engine
- Also: PubMed Central (US National Library of Medicine), hosting a peer-reviewed research article on spark-ignition engine knoc: Numerical investigation for optimization of spark-ignition internal combustion engine knock by Taguchi-Grey method
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