Powering jet engines with a 50-50 blend of biofuel and aviation fuel reduces particle emissions in their exhaust by as much as 50 to 70 percent, according to a NASA-led study recently published in the journal Nature.
NASA Confirms Biofuels Reduce Jet Emissions
Key Takeaways:
- A NASA-led study found that a 50-50 blend of biofuel and aviation fuel reduces particle emissions in jet engine exhaust by 50-70%.
- This reduction in particle emissions is crucial as contrails, which are driven by soot emissions, have a greater impact on Earth’s atmosphere than all carbon dioxide emissions from aircraft.
- The Alternative Fuel Effects on Contrails and Cruise Emissions Study (ACCESS) involved flight tests with a DC-8 burning the biofuel blend and trailing aircraft measuring emissions and contrail formation at high altitudes.
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