2) Steam turbine at steady state with a throttling valve to adjust its power will be analyzed. Neglect kinetic and potential energy changes and heat transfer to the surroundings to determine the temperature at the turbine inlet and the power developed by the turbine per kg of steam. Valve Power out Turbine P1 1.5 MPa T = 320°C P2 I MPa 3 P3 = 0.08 bar X= 90%

2) Steam turbine at steady state with a throttling valve to adjust its power will be analyzed. Neglect kinetic and potential energy changes and heat transfer to the surroundings to determine the temperature at the turbine inlet and the power developed by the turbine per kg of steam. Valve Power out Turbine P1 1.5 MPa T = 320°C P2 I MPa 3 P3 = 0.08 bar X= 90%

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

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

2) Steam turbine at steady state with a throttling valve to adjust its power will be analyzed. Neglect
kinetic and potential energy changes and heat transfer to the surroundings to determine the
temperature at the turbine inlet and the power developed by the turbine per kg of steam.
Valve
Power out
Turbine
P = 1.5 MPa
T = 320°C
P2 =I MPa
3
P3 = 0.08 bar
Vx = 90%

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For the direct shear example shown below, if F = 33 kN, AAB = ACD = 2146 mm2, the average shear stress in the internal vertical surface AB (or CD), = ______ MPa. Calculate your answer to 1 decimal place.
QUESTION 1 PART A AND B
Assume o, = 500, o, = 300, TTy = 250, orield = 350. Answer the following questions. Click here for equations. Oy Txy Ox Part A Determine the maximum normal stress along a plane where there is no shear stress. О 131 МPа O 669 MPa O 368 MPa O 234 MPa O 569 MPa Submit Request Answer
this question is not for a grade. it is only a study question. submitting it is not a violation of the honor code
20 ksi 40 ksi 60 ksi The differential element above represents the state of plane stress at a point in a steel beam. Which of the following best represents the magnitude of shear stress on a differential element at the same point but oriented 40 degrees clockwise from the element shown? O52.5 ksi O46.3 ksi 12.5 ksi
Determine the resulting maximum value of the normal stress. Specify the orientation of the plane on which these maximum values occur. **The answer is tensile stress is 0 ksi at 90 degrees. **The answer is compressive stress is 7 ksi at 0 degrees. Can you explain how that is? This was my thought process: I know that tensile would be zero because the force P is actually going inwards and not outwards. I know that means that there would be a compressive force. I am confused on the angles, how is a tensile force going 90 degress if there technically is no force in the tensile direction. And how is there a compressive force at 90 degrees if there is a stress? thank you!