Design And Operation Of A Shell And Tube Heat Exchanger

Project and Seminar Material for Chemical Engineering

Design And Operation Of A Shell And Tube Heat Exchanger


Table of Content


  • Title page
  • Certification page
  • Dedication
  • Acknowledgement
  • Abstract
  • Table of content

Chapter One

  • Introduction

Chapter Two

  • 2.0 Literature Review
  • 2.0.1 Classification of heat Exchanger
  • 2.0.2 Categories of heat exchangers
  • 2.0.3 Types of heat exchangers
  • 2.0.4 Material for constructions
  • 2.0.5 Tube shape and position
  • 2.0.6 Firing
  • 2.0.7 Heat source
  • 2.0.8 Design approval of a heat exchanger
  • 2.0.9 Designing a heat exchanger
  • 2.0.10 Essentials in the heat exchanger design
  • 2.0.11 Step by step approach to designing

Chapter Three

  • Design algorithm for a shell and tube heat exchanger

Chapter Four

  • Discussion of heat exchanger algorithm computer program

Chapter Five

  • Conclusion and recommendation
  • Nomenclatures
  • References

Chapter One


Introduction

The most common type of heat exchanger used in industry contains a number of parallel tubes enclosed in a shell and is thus called a shell and tube heat exchanger. These heat exchangers are employed when a process required large quantities of fluid to be heated or cooled. Due to their compact design, these heat exchangers contain a large amount of heat transfer area and also provide a high degree of heat transfer efficiency.

Over the years, many different types of shell and tube heat exchangers, have been designed to meet various process requirements. In the industry today, heat exchangers are most often designed with the aid of software program. Given the required specifications for a heat exchanger, these simulators perform the appropriate calculations.

In this project, we try to use a computer approach in designing a shell and tube heat exchanger. We started by designing an algorithm that covers the chemical engineering design such as the estimation of fluid and material properties, film and overall heat transfer coefficient, exchanger surface, tube layout and pressure drop. It also covers the mechanical engineering design of calculating the shell and channel thickness, shell cover thickness, channel cover thickness e.t.c.

These algorithm was translated unto a program using a micro soft visual basic 6.0, an object oriented computer programming language.

With this program, the computer takes over and automatically per for all the complex computations with little or no human effort and gives an output which is the design information needed.


Chapter Five


Conclusion and Recommendation

Conclusion

Having reviewed the importance of using a computer to design a program for a shell and tube heat exchanger over the old (manual) method. In the course of the project, it was able to design many algorithms and programs within a short period of time. It was equally discovered that there was high accuracy in the design of shell and tube heat exchanger whose program was designed with a computer. Also the time and strength required for an engineer to design algorithms for shell and tube heat exchangers manually was seriously reduced with the use of computer.

In conclusion, sine the objective function of shell and tube heat exchanger is for an integral operating economics and profit making, it is advisable to make use of computer in designing algorithms and writing programs for the design of shell and tube heat exchangers.


Recommendation

For an effective design programs for the design of shell and tube heat exchanger, the following recommendations are made:

  1. Since a problem well understood is half-solved, it is better to design a computer program using the simplest and well understood computer programming language as visual basic 6.0 or Q-Basic.
  2. Care should be taken in drawing computer flow charts needed for any task since the program emanates from them.
  3. The era of using human strength all above in solving engineering design problems had gone, the use of computer in solving design problems especially in designing a shell and tube heat exchanger should be encouraged for accuracy and profitability.

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