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In 2018, CO₂ emissions totalled 747 million tonnes for passenger transport, for 8.5 trillion revenue passenger kilometres (RPK), giving an average of 88 grams CO₂ per RPK; [2] this represents 28 g of fuel per kilometre, or a 3.5 L/100 km (67 mpg ‑US) fuel consumption per passenger, on average. The worst-performing flights are short trips ...
Different types of transport range from some hundred kilojoules per kilometre (kJ/km) for a bicycle to tens of megajoules per kilometre (MJ/km) for a helicopter. Via type of fuel used and rate of fuel consumption, energy efficiency is also often related to operating cost ($/km) and environmental emissions (e.g. CO 2 /km).
kilometre (km) or kilometer is a metric unit used, outside the US, to measure the length of a journey; the international statute mile (mi) is used in the US; 1 mi = 1.609344 km; nautical mile is rarely used to derive units of transportation quantity.
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Passenger RASM (or PRASM) is passenger (or scheduled ticket) revenue per ASM. Operating RASM or Total RASM is the airline's total operating revenue per ASM. So, for instance, in the second quarter of 2011, Southwest had scheduled revenue of $3.876 bn and total operating revenue of $4.136 bn. [ 3 ] Southwest's system Passenger RASM and Operating ...
According to the Center for Disease Control (CDC), a missed day of work due to illness or injury costs an employer around $1,685 per employee, which could account for $278 billion in the U.S. economy.
= 10 parts per million by volume = 10 ppmv = 10 volumes/10 6 volumes NO x molar mass = 46 kg/kmol = 46 g/mol Flow rate of flue gas = 20 cubic metres per minute = 20 m 3 /min The flue gas exits the furnace at 0 °C temperature and 101.325 kPa absolute pressure. The molar volume of a gas at 0 °C temperature and 101.325 kPa is 22.414 m 3 /kmol.
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