CFM successfully tests 30% biofuel in jet engine
Another major milestone for aviation biofuels has been announced by CFM International. The company has successfully carried out an initial test of a CFM56-7B engine using an ester-type biofuel at Snecma's Villaroche facility near Paris.
The CFM56-7B turbofan is the exclusive engine for the Boeing Next-Generation Single-aisle airliner. Over 4000 of them are already in service in airplanes such as the Boeing 737-600/700/800, the 737-900, the P-8A, the Boeing Business Jet and numerous other (military) aircraft. Boeing is very active in developing biofuels for aviation, and recently announced it aims for a target of blending 50% biofuel with jet fuels (earlier post). CFM56 engines are produced by CFM International (CFM), a 50/50 joint company of Snecma (Safran Group) and General Electric Company.
The biofuel used for this test is 30 percent vegetable oil methyl ester blended with 70 percent conventional Jet-A1 fuel. This test was designed to check the operation of a jet engine using a fuel made from biomass, without making any technical changes to the engine. With this type of biofuel, the target is a net reduction of 20 percent in carbon dioxide (CO2) emissions compared with current fuels.
For alternative fuels to be used in the aviation industry, there are a number of major technology challenges that must be met, including energy density, thermal stability (avoiding coking at high temperature), use at very low temperatures (freezing) or high temperatures, lubricating effect with materials used, and the availability of mass production facilities worldwide:
biofuels :: energy :: sustainability :: climate change :: Peak Oil :: methyl ester :: vegetable oil :: synthetic biofuel :: aviation :: turbofan ::
"CFM International is satisfied with this first CFM56 engine test using a biofuel, another major step towards an ecologically friendly Jet engine delete economy," said Eric Bachelet, president and CEO of CFM.
The engine
The CFM56-7B turbofan is the exclusive engine for the Boeing Next-Generation Single-aisle airliner. Over 4000 of them are already in service in airplanes such as the Boeing 737-600/700/800, the 737-900, the P-8A, the Boeing Business Jet and numerous other (military) aircraft. Boeing is very active in developing biofuels for aviation, and recently announced it aims for a target of blending 50% biofuel with jet fuels (earlier post). CFM56 engines are produced by CFM International (CFM), a 50/50 joint company of Snecma (Safran Group) and General Electric Company.
The biofuel used for this test is 30 percent vegetable oil methyl ester blended with 70 percent conventional Jet-A1 fuel. This test was designed to check the operation of a jet engine using a fuel made from biomass, without making any technical changes to the engine. With this type of biofuel, the target is a net reduction of 20 percent in carbon dioxide (CO2) emissions compared with current fuels.
Our goal is to support the industry in identifying replacements for traditional hydrocarbon-based fuels, including synthetic fuels that use a mixture of biofuels and jet fuel. - Pierre Thouraud, Snecma Vice-president engineering.CFM is running engine tests to develop solutions based on mixtures of jet fuel and second-generation biofuels. For instance, it is currently focusing on the evaluation of alternative fuels made using biomass (offering properties closer to those of jet fuel), which also offer better environmental performance. Along with its parent companies, CFM International is participating in a number of emissions-focused initiatives, including the U.S. CAP (Climate Action Partnership), French Calin, and European Alpha-Bird programs.
For alternative fuels to be used in the aviation industry, there are a number of major technology challenges that must be met, including energy density, thermal stability (avoiding coking at high temperature), use at very low temperatures (freezing) or high temperatures, lubricating effect with materials used, and the availability of mass production facilities worldwide:
biofuels :: energy :: sustainability :: climate change :: Peak Oil :: methyl ester :: vegetable oil :: synthetic biofuel :: aviation :: turbofan ::
"CFM International is satisfied with this first CFM56 engine test using a biofuel, another major step towards an ecologically friendly Jet engine delete economy," said Eric Bachelet, president and CEO of CFM.
The engine
The CFM56-7B is the exclusive engine for the Boeing Next-Generation Single-aisle airliner: 737-600/-700/-800/-900. Thrust ranges from 18,500 to 27,300 lbs.CFM has long been a leader in working to reduce fuel consumption, greenhouse gases, polluting emissions and noise and pioneered new technologies to reduce emissions of carbon dioxide (CO2), nitrogen oxides (NOx), hydrocarbons and visible smoke.
Over 4,000 CFM56-7B engines are in service as part of the most popular engine/aircraft team in commercial aviation. The -7, with it's swept fan and advanced compressor is among the most modern, efficient and reliable turbofans ever. More than 500 airlines fly CFM56-7B-powered 737s and, since entering service in the mid-90s, they have accumlated over 50 Million flight hours. All CFM56-7B engines delivered beginning in mid 2007 will be compliant with future CAEP/6 environmental requirements.
The CFM56-7B also powers the Boeing/GE BBJ (Boeing Business Jet) and 737 military variants including transports special mission aircraft.
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