Lecture 34 Examples - inside of the wall is 15 °C and the...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Example 1: Consider the following real Brayton cycle that uses air as its working fluid. The cycle operates with a pressure ratio of r p = 4.2, the compressor inlet temperature is 300 K, and the turbine inlet temperature is 1325 K. The heating value of the fuel is 43 kJ/g-fuel. Assume the air standard model is valid where the air has mean effective specific heat ratio of 4/3. The compressor and the turbine operate with isentropic efficiencies of η C = 75 % and η T = 85 % respectively. Complete a thermodynamic analysis of the cycle.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Example 2: A concrete wall of a building is 6 m wide, 8 m high, and 0.25 m thick. The temperature of the
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: inside of the wall is 15 °C and the outside of the wall is 4 °C. Calculate the rate of heat loss through the wall and the amount of heat lost through the wall in 10 hours. Example 3: A 10-m long section of a steam pipe, with a diameter of 15 cm, passes through an open space at 25 °C. The average temperature of the outer surface of the pipe is 200 °C, and the average heat transfer coefficient on that surface is 40 W/m 2-K. Determine the rate of heat loss from the steam pipe....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern