Aircraft

Rolls-Royce tests 100% sustainable aviation fuel in small jet engine

Rolls-Royce tests 100% sustain...
The Pearl 700 engine used to test the 100 percent sustainable aviation fuel
The Pearl 700 engine used to test the 100 percent sustainable aviation fuel
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The test involved a fuel blend that had no conventional jet fuel in it
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The test involved a fuel blend that had no conventional jet fuel in it
The Pearl 700 engine used to test the 100 percent sustainable aviation fuel
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The Pearl 700 engine used to test the 100 percent sustainable aviation fuel

As part of its goal to reach net zero carbon dioxide emissions by 2050, Rolls-Royce has begun testing the viability of using 100-percent Sustainable Aviation Fuel (SAF) in small commercial business jets. The ground tests used the new Pearl 700 business jet engine in Dahlewitz, Germany, where the Rolls-Royce BR700 family of turbofan engines is manufactured, and follows on previous tests in the larger Trent 1000 engine in Derby, UK.

Sustainable Aviation Fuel is a name the aerospace industry prefers to biofuel because some biofuels are often relatively primitive or, like palm oil, cause too much environmental damage. Instead, SAFs are produced from a variety of sustainable sources, including municipal solid wastes; cellulose waste from the forestry industry; used cooking oil; energy crops, including comelina, jatropha, halophytes, and algae; and non-biological fuels like waste gases from steel works.

SAFs are attractive to the aerospace industry because they can address the problem of reducing carbon dioxide emissions immediately. Such fuels can be "dropped in" by simply being added to conventional fuels without the need for extensive changes to existing infrastructure.

The test involved a fuel blend that had no conventional jet fuel in it
The test involved a fuel blend that had no conventional jet fuel in it

The Rolls-Royce tests used an SAF produced by World Energy in Paramount, California, for Shell Aviation. According to Rolls-Royce, the new fuel has the potential to reduce life-cycle carbon dioxide emissions by over 75 percent, and potentially even more with later refinements.

Currently, the civil air authorities only allow blends of up to 50 percent SAFs to be used with conventional kerosene-based jet fuels so the present tests are intended to show that a 100-percent SAF can be used in conventional jet engines as a drop-in option.

"Sustainable aviation fuels have the potential to significantly reduce the carbon emissions of our engines and combining this potential with the extraordinary performance of our Pearl engine family brings us another important step closer to enabling our customers to achieve net zero carbon emissions," says Dr. Joerg Au, Chief Engineer – Business Aviation and Engineering Director Rolls-Royce Deutschland."

Source: Rolls-Royce

4 comments
4 comments
FB36
"SAFs are produced from a variety of sustainable sources, including municipal solid wastes; cellulose waste from the forestry industry; used cooking oil; energy crops, including comelina, jatropha, halophytes, and algae; and non-biological fuels like waste gases from steel works"

Sounds really great!

All countries need to start producing biodiesel fuel (from all possible sources) at large scales to make all heavy trucks, trains, ships, military/agriculture/mining/construction vehicles carbon neutral!
paleochocolate
Or we could use the kerosene byproduct in crude oil distillation. lmao
Expanded Viewpoint
Paleo,

While I'm NOT an expert in the history of the petroleum industry and all of its nuances, I had read that kerosene was one of the major fractions that was sought in crude oil, because it burns so brightly. It was very desirable as a fuel for lamps before Edison perfected the idea of the electric light bulb. Gasoline, on the other hand, was a waste product of the process and was thrown away, left to evaporate from ponds, as no one had much of a use for it. Until Otto perfected his internal combustion engine, that is. Otto experimented with coal dust and even gun powder as a fuel, but it was impossible to control the speed. His engines either refused to run or blew apart from too much fuel. Someone suggested to him that he should look for a liquid fuel, and gasoline was very plentiful.
Expanded Viewpoint
It's totally amazing to me, that even the management at RR gets hoodwinked in this "sustainable" and "carbon neutral" claptrap. RR has some of the most brilliant and talented engineering minds in the world working for them, and I would like to think that the ones who are running the company, are equally as adept in the management departments. Maybe the apple of political correctness and "wokeness", is just too delicious for them to decline the eating of it.