Problem 2 An Air Force Research Lab engineer is asked to evaluate the maximum theoretical work that could be produced by the first stage turbine section of an experimental jet engine. Test stand measurements provide the following information: a. Entering air conditions: 1400 K, 8 bar b. Exiting air conditions: .8 bar Part 1: Since you don't have a mass flow rate measurement, what will be the units will you report maximum theoretical work in? Part 2: Write the first law equation for your control volume showing all terms. What assumptions will you make to simplify the equation. Part 3: Pin down the outlet state on a notional T-s diagram for air (just show the two isobars). Why did

Problem 2 An Air Force Research Lab engineer is asked to evaluate the maximum theoretical work that could be produced by the first stage turbine section of an experimental jet engine. Test stand measurements provide the following information: a. Entering air conditions: 1400 K, 8 bar b. Exiting air conditions: .8 bar Part 1: Since you don't have a mass flow rate measurement, what will be the units will you report maximum theoretical work in? Part 2: Write the first law equation for your control volume showing all terms. What assumptions will you make to simplify the equation. Part 3: Pin down the outlet state on a notional T-s diagram for air (just show the two isobars). Why did

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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Question

**Problem 2**

An Air Force Research Lab engineer is asked to evaluate the maximum theoretical work that could be produced by the first stage turbine section of an experimental jet engine. Test stand measurements provide the following information:

a. Entering air conditions: 1400 K, 8 bar
b. Exiting air conditions: 0.8 bar

**Part 1:** Since you don’t have a mass flow rate measurement, what will be the units will you report maximum theoretical work in?

**Part 2:** Write the first law equation for your control volume showing all terms. What assumptions will you make to simplify the equation.

**Part 3:** Pin down the outlet state on a notional T-s diagram for air (just show the two isobars). Why did you select this point?

**Part 4:** What assumption about the properties of air will you make in order to solve this problem?

**Part 5:** Use the appropriate form of the ‘Tds’ equation and the air tables to solve for the exit state.

**Part 6:** Calculate the max theoretical work.

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