Air at -40 °C enters a jet combustion chamber with a velocity equal to 150 m/s. The exhaust velocity is 200 m/s, with 297 °C as outlet temperature. The mass flow rate of the gas (air-exhaust) through the engine is 7.6 kg/s. The heating value of the fuel is 45.9 MJ/kg and the combustion (to be considered as an external source) has an efficiency equal to 100%. Assume the gas specific heat at constant pressure (c,) to be 1.25 kJ/(kg K). Determine the kg of fuel required during a 4.8 hours flight to one decimal value.
Air at -40 °C enters a jet combustion chamber with a velocity equal to 150 m/s. The exhaust velocity is 200 m/s, with 297 °C as outlet temperature. The mass flow rate of the gas (air-exhaust) through the engine is 7.6 kg/s. The heating value of the fuel is 45.9 MJ/kg and the combustion (to be considered as an external source) has an efficiency equal to 100%. Assume the gas specific heat at constant pressure (c,) to be 1.25 kJ/(kg K). Determine the kg of fuel required during a 4.8 hours flight to one decimal value.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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![Air at -40 °C enters a jet combustion chamber with a velocity equal to 150 m/s. The
exhaust velocity is 200 m/s, with 297 °C as outlet temperature. The mass flow rate of
the gas (air-exhaust) through the engine is 7.6 kg/s. The heating value of the fuel is
45.9 MJ/kg and the combustion (to be considered as an external source) has an
efficiency equal to 100%. Assume the gas specific heat at constant pressure (c,) to be
1.25 kJ/(kg K). Determine the kg of fuel required during a 4.8 hours flight to one
decimal value.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe358f355-8433-405c-a9d7-ade09145c770%2F84c829fe-5115-4ce1-bfdf-85d59f3c558f%2Fi0f6rvt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Air at -40 °C enters a jet combustion chamber with a velocity equal to 150 m/s. The
exhaust velocity is 200 m/s, with 297 °C as outlet temperature. The mass flow rate of
the gas (air-exhaust) through the engine is 7.6 kg/s. The heating value of the fuel is
45.9 MJ/kg and the combustion (to be considered as an external source) has an
efficiency equal to 100%. Assume the gas specific heat at constant pressure (c,) to be
1.25 kJ/(kg K). Determine the kg of fuel required during a 4.8 hours flight to one
decimal value.
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