9. Liquefying natural gas is one way to increase energy density for transport. A Samsung ship...
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9. Liquefying natural gas is one way to increase energy density for transport. A Samsung ship fleet with an LNG capacity of 221,000 m³ transports LNG from Australia to China (~ 8000 km) under full-speed 19.5 knots (36 km/h). The total power of the fleet is 57050 horsepower (1 horsepower = 746 W). The LNG tank temperature is -163.5°C and density of LNG at this condition is 468 kg/m³. a. If on board LNG is used to power the fleet engines, with an efficiency of 40%, estimate how much LNG is required in transport? [in J] b. What percentage of LNG on board would be used up in transport? Comment on the efficiency of this LNG transport strategy 10. An Australian billionaire and clean-energy enthusiast (Mike Cannon-Brookes) wishes to buy Australian coal-powered electricity plants in order to shut them down. a. If - with a $15 billion USD investment - he gained control of 50% of Australia's coal- powered electricity generation capacity, and closed those plants 20 years earlier than they would have been closed otherwise, what cost has he paid to abate this CO2 [$USD/T_CO2]? b. How does that compare to the standard carbon prices, or carbon taxes? c. What could go wrong with Mike's strategy? 9. Liquefying natural gas is one way to increase energy density for transport. A Samsung ship fleet with an LNG capacity of 221,000 m³ transports LNG from Australia to China (~ 8000 km) under full-speed 19.5 knots (36 km/h). The total power of the fleet is 57050 horsepower (1 horsepower = 746 W). The LNG tank temperature is -163.5°C and density of LNG at this condition is 468 kg/m³. a. If on board LNG is used to power the fleet engines, with an efficiency of 40%, estimate how much LNG is required in transport? [in J] b. What percentage of LNG on board would be used up in transport? Comment on the efficiency of this LNG transport strategy 10. An Australian billionaire and clean-energy enthusiast (Mike Cannon-Brookes) wishes to buy Australian coal-powered electricity plants in order to shut them down. a. If - with a $15 billion USD investment - he gained control of 50% of Australia's coal- powered electricity generation capacity, and closed those plants 20 years earlier than they would have been closed otherwise, what cost has he paid to abate this CO2 [$USD/T_CO2]? b. How does that compare to the standard carbon prices, or carbon taxes? c. What could go wrong with Mike's strategy?
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Answer rating: 100% (QA)
a To estimate the amount of LNG required for transport we need to calculate the energy consumption of the fleet engines and convert it to the amount of LNG based on its energy content Given LNG capaci... View the full answer
Related Book For
Managerial accounting
ISBN: 978-0471467854
1st edition
Authors: ramji balakrishnan, k. s i varamakrishnan, Geoffrey b. sprin
Posted Date:
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