Problem 1. Air flows steadily in a duct from Section (1) to Section (2). At Section (1), the absolute pressure is P1 = 300 kPa, the temperature is T1 = 80 °C, and the velocity is V1 = 100 m/s. At Section (2), the absolute pressure is p2 = 290 kPa and the temperature is T, = 180 °C. Calculate between Section (1) and Section (2) the change in the following: (a) specific internal energy, (b) specific enthalpy, (c) density, (d) specific entropy. (e) Calculate the mass flowrate for a heat addition of Q12 = 50 W from Section (1) to Section (2).

Problem 1. Air flows steadily in a duct from Section (1) to Section (2). At Section (1), the absolute pressure is P1 = 300 kPa, the temperature is T1 = 80 °C, and the velocity is V1 = 100 m/s. At Section (2), the absolute pressure is p2 = 290 kPa and the temperature is T, = 180 °C. Calculate between Section (1) and Section (2) the change in the following: (a) specific internal energy, (b) specific enthalpy, (c) density, (d) specific entropy. (e) Calculate the mass flowrate for a heat addition of Q12 = 50 W from Section (1) to Section (2).

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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Concept explainers

Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.

Question

Problem 1. Air flows steadily in a duct from Section (1) to Section (2). At Section (1), the absolute pressure is
P1 = 300 kPa, the temperature is T1 = 80 °C, and the velocity is V1 = 100 m/s. At Section (2), the absolute
pressure is p, = 290 kPa and the temperature is T, = 180 °C. Calculate between Section (1) and Section (2) the
change in the following: (a) specific internal energy, (b) specific enthalpy, (c) density, (d) specific entropy. (e) Calculate the
mass flowrate for a heat addition of Q12 = 50 W from Section (1) to Section (2).

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