SpaceX plánuje dva štarty Starlink satelitov za štyri dni
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Re: Veľa spoldín.
Od: peeticek
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Pridané:
2020-10-19 07:59:06
Charlie Garcia, former Launch Operations Intern at SpaceX
The Falcon 9 uses two propellants, liquid oxygen (O2, no carbon here) and Kerosene a petrol chemical containing between 6 and 16 carbon atoms per molecule.
The Falcon 9 burns through 29,600 gallons of highly refined kerosene during its trip to orbit. The vehicle takes about 12 trips to orbit a year so that's about 360,000 gallons of kerosene a year burned in spaceflight. That converts to 2,460,600 pounds of kerosene burnt in a year of Falcon 9 launches. Since I enjoy the metric system, that is 1,116,000 kg of kerosene. Kerosene produces approximately 2.6kg of CO2 per kg of Kerosene burned. Basic arithmetic says that the rocket produces 2,902,000 kg of carbon dioxide during a year of SpaceX activities. Global Carbon Emissions 2014 3.23 x 10^13 total from SpaceX 2.902 x 10^6. This means that SpaceX is responsible for 9 one billionths of annual carbon emissions. This is not a significant amount.
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