Prototype of Chp System

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Design and Development of Prototype Micro CHP Unit

By

Ruairi McElligott, Yuanyuan Chen and Naif Mohammed

Keith Vaugh, Adviser

A thesis submitted in partial fulfilment

of the requirements for the

Degree of Bachelor of Engineering

In Mechanical & Renewable Engineering

ATHLONE INSTITUTE OF TECHNOLOGY

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DECLARATION

I declare that the dissertation submitted by me, in whole or in part, has not been submitted to any other university, institute or college as an exercise for a degree or any other qualification. I further declare that, except where reference is given in the text, it is entirely my own work.

Signed: _________________Date: _____________

Table of Contents

Declaration………………………………………………………………….……..2

Nomenclature………………………………………………………………….…..10

List of Figure……………………………………………………………………....8

List of Tables & Graphs……………………………………………………….…..9

Chapter 1- Introduction

1.0 -Introduction ....................................................................................................11

1.1-Project Aim ......................................................................................................12

1.2-Scope ................................................................................................................13

1.3-Methodology ....................................................................................................13

1.4- Project Outline ................................................................................................14

1.5-Safety ...............................................................................................................15

Chapter 2 – Literature Review

2.0- Literature Review............................................................................................16

2.1-Technologies & Fuels used in Small Scale CHP Plants...................................17

2.2-Piston Engines..................................................................................................18

2.2.1-Diesel engine.................................................................................................19

2.2.2-Spark Ignition Engines..................................................................................19

2.2.3-Advantages & Disadvantages of Piston Engine CHP .................................20

2.3-Micro- Turbines ..............................................................................................20

2.3.1-Advantages & Disadvantages of Micro-Turbines........................................21

2.4-Fuel Cells........................................................................................................22

2.5-Small scale CHP in Ireland.............................................................................23

2.5.1-Grid Connection .........................................................................................24

2.6-Influencing Factors in CHP Design...............................................................26

2.7- Combined Heat & Power Components.......................................................27

2.7.1-Heat-exchangers........................................................................................28

2.7.2-Methods of Heat transfer...........................................................................28

2.7.3-Direct contact- ..........................................................................................28

2.7.4-Transmural-...............................................................................................29

2.7.5-Shell & Tube.............................................................................................30

2.7.6-Plate- Heat Exchangers.............................................................................31

2.7.7-Selection of a Heat...
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