Air with a mass flow rate of 3 kg/s enters a horizontal nozzle operating at steady state at 400 K, 300 kPa, and velocity of 2.5 m/s. At the exit, the temperature is 250 K and the velocity is 400 m/s. Using the ideal gas model for air with constant cp = 1.011 kJ/kg · K, determine a. the area at the inlet, in m2. b. the heat transfer between the nozzle at its surroundings, in kW. Specify whether the heat transfer is to or from the air.
Air with a mass flow rate of 3 kg/s enters a horizontal nozzle operating at steady state at 400 K, 300 kPa, and velocity of 2.5 m/s. At the exit, the temperature is 250 K and the velocity is 400 m/s. Using the ideal gas model for air with constant cp = 1.011 kJ/kg · K, determine a. the area at the inlet, in m2. b. the heat transfer between the nozzle at its surroundings, in kW. Specify whether the heat transfer is to or from the air.
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 with a mass flow rate of 3 kg/s enters a horizontal nozzle operating at steady state at 400 K, 300 kPa, and velocity of 2.5 m/s. At the exit, the temperature is 250 K and the velocity is 400 m/s. Using the ideal gas model for air with constant cp = 1.011 kJ/kg · K, determine
a. the area at the inlet, in m2.
b. the heat transfer between the nozzle at its surroundings, in kW. Specify whether the
heat transfer is to or from the air.
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