EP-13-2-Solution-1 - LEARNING MODULE 13 EXAMPLE PROBLEM 2...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
LEARNING MODULE 13 EXAMPLE PROBLEM 2 Scaling Arguments in Heat Transfer – proving it with numbers For the scenario given in Example Problem 1, assume that for equal flow rates of hot and cold streams, say 500 m 3 /hr, the individual heat transfer coefficients for water are 3000W/m 2 - o C on both the shell and tube side. Now assume you double the flow rate in the cooling water stream. Let the tubes have an inside diameter of 13mm and an outside diameter of 16mm. Prove that the overall heat transfer coefficient is greater if the cooling water is placed on the inside of the tubes and the process water is placed on the outside of the tubes. SOLUTION 1. Calculate “U” for the base case at 500 m 3 /hr: i i o o o h D D h U 1 1 1 ignoring the barrier as negligible and constant for all scenarios. Then: C m W h D D h U o i i o o o 
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
This is the end of the preview. Sign up to access the rest of the 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