Consider 85 lb/s of air entering a turbine operating at steady state with a pressure of 75 lbf/in², a temperature of 800°R, and a velocityof 400 ft/s. At the turbine exit, the conditions are 15 lbf/in2, 600°R, and 100 ft/s. Heat transfer from the turbine to its surroundingstakes place at an average surface temperature of 620°R. The rate of heat transfer from the turbine is 100 Btu/s.Let T₁ = 40°F, po = 15 lbf/in².Step 1Determine the work developed by the turbine, in Btu/s.W =HintStep 2Your answer is correct.4263.374764* Your answer is incorrect.Ed =Determine the rate of exergy destruction, in Btu/s.Btu/si -1815.62Btu/sAttempts: 1 of 4 used

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Determine the rate of exergy destruction, in Btu/s.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.

Question

Consider 85 lb/s of air entering a turbine operating at steady state with a pressure of 75 lbf/in², a temperature of 800°R, and a velocity
of 400 ft/s. At the turbine exit, the conditions are 15 lbf/in2, 600°R, and 100 ft/s. Heat transfer from the turbine to its surroundings
takes place at an average surface temperature of 620°R. The rate of heat transfer from the turbine is 100 Btu/s.
Let T₁ = 40°F, po = 15 lbf/in².
Step 1
Determine the work developed by the turbine, in Btu/s.
W =
Hint
Step 2
Your answer is correct.
4263.374764
* Your answer is incorrect.
Ed =
Determine the rate of exergy destruction, in Btu/s.
Btu/s
i -1815.62
Btu/s
Attempts: 1 of 4 used

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