The aircraft industry has a target that is not easy. In addition to the increase in air traffic, they also have gas emission reduction targets.
In 2050, the aircraft industry is expected to increase air traffic as much as seven-fold. They also targeted must reduce greenhouse gas emissions by 4-fold.
Launched by Space.com, Monday, November 11, 2014, the most important step to make the industry more 'green' is making a commercial plane that has electrical power. Power like that is free of CO2 and NOx emissions. Unfortunately, it took a lot of time and effort to be able to find a suitable electric batteries and capable.
CEO of Tesla, Elon Musk said the aviation industry would be very interesting if it is found the battery with a production capacity of 400 watt-hours per kilogram. This is the ratio of the power of the cell to the overall mass of between 0.7 to 0.8.
In 1994 then, a new lithium-ion battery is able to achieve an energy density of 113Wh / kg. Then increase to 202Wh / kg in 2004. At present, its strength hampit gets 300Wh / kg. It is estimated that within the next few decades, reaching its strength 400Wh / kg.
To bring low-cost and environmentally friendly, the industry can also use solar panels. This is the lowest energy solution expected. In fact, it costs 70 percent less than the cost of lithium-ion batteries in 2025.
The use of biofuels is also a concern. Unfortunately, the life cycle of an aircraft is estimated that only about 21 to 33 years. Therefore, it takes a long time to be able to make the transition from the use of fossil fuel energy to electricity. It usually requires two to three decades. On the other hand, the energy of biofuels to reduce carbon emissions between 36 to 85 percent.
United States Space Agency (NASA) has made the concept of commercial aviation aircraft are expected to be successful in the future. Here's the look of a future NASA aircraft.
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