Chapter 4 Heat Exchanger (1).pptx

Chapter 4 Heat Exchanger (1).pptx - BKF2422 HEAT TRANSFER...

Info icon This preview shows pages 1–15. Sign up to view the full content.

View Full Document Right Arrow Icon
BKF2422 HEAT TRANSFER CHAPTER 4 HEAT EXCHANGER CO2 Utilize the design equations for heat exchanger to solve problems related to heat exchanger. PO1 Engineering Knowledge - Apply knowledge of mathematics, science, engineering fundamentals and an engineering specialisation to the solution of complex engineering problems. PO2 Problem Analysis - Identify, formulate, research literature and analyse complex engineering problems reaching substantiated conclusions using first principles of mathematics, natural sciences and engineering sciences. PO3 Design/Development of Solutions - Design solutions for complex engineering problems and design systems, components or processes that meet specified needs with appropriate consideration for public health and safety, cultural, societal, and environmental considerations.
Image of page 1

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

View Full Document Right Arrow Icon
Types of Heat exchanger Fouling Factors and Typical Overall U values The Heat Exchanger Analysis: Log Mean Temperature Difference (LMTD) Correction Factors The Heat Exchanger Analysis: The Effectiveness-NTU Method CONTENTS
Image of page 2
It is expected that students will be able: to classify different types of heat exchangers to determine fouling factor and set up the thermal resistance network for the overall heat transfer coefficient to determine LMTD correction factor for multi-passes heat exchanger and utilize the LMTD method to solve problems related to single and multiple-passes heat exchangers to determine heat exchanger effectiveness and to evaluate the thermal performance by the NTU method TOPIC OUTCOMES
Image of page 3

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

View Full Document Right Arrow Icon
TYPES OF HEAT EXCHANGER
Image of page 4
Type of Heat Exchan ger Double-pipe heat exchanger Shell and tube heat exchanger Cross flow heat exchanger
Image of page 5

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

View Full Document Right Arrow Icon
Double-pipe heat exchanger
Image of page 6
Shell and Tube Heat Exchanger 1 shell pass I tube pass (1-1 exchanger) 1 shell pass 2 tube passes (1-2 exchanger)
Image of page 7

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

View Full Document Right Arrow Icon
Shell and tube exchanger Shell inlet Shell outlet Tube inlet Tube outlet Shell inlet Tube inlet Tube outlet Shell outlet
Image of page 8
Cross-Flow Heat exchangers One fluid mixed, one fluid unmixed Both fluids unmixed Gas flow Gas flow
Image of page 9

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

View Full Document Right Arrow Icon
Image of page 10
Types of Heat exchanger Fouling Factors and Typical Overall U values The Heat Exchanger Analysis: Log Mean Temperature Difference (LMTD) Correction Factors The Heat Exchanger Analysis: The Effectiveness-NTU Method CONTENTS
Image of page 11

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

View Full Document Right Arrow Icon
Energy Balances and Heat Transfer Rate Energy balance on hot fluid: Energy balance on cool fluid: Heat transfer rate: o h hi h p T T c m q ci co c p T T c m q m T UA q
Image of page 12
Distance Countercurrent Distance Co-current T 1 T’ 2 T 2 T’ 1 T 1 T’ 2 T 2 T’ 1 LOG MEAN TEMPERATURE DIFFERENCE (LMTD) 1 ' T 2 ' T 1 T 2 T T 1 2 T 1 T 1 ' T 2 T 2 ' T T 2 T 1
Image of page 13

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

View Full Document Right Arrow Icon
T m = T lm this holds for a
Image of page 14
Image of page 15
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