Design and implementation of gas detection system
Table Of Contents
- <p> </p><div><p>Figure 1.8: Project Organizations Block Diagram- – – – 8 </p><p>Figure 2.3: Ventilator Automatic Gas Detector [8] – – – 13 </p><p>Figure
- 3.2Block Diagram Design of the System– – – 23 </p><p>Figure 3.
- 3.1 Mq-6 Gas Sensor [9] – – – – – 25</p><p>Figure 3.5: Transistor Buffer– – – – – – 27</p><p>Figure 3.7: Dc Regulator [10]– – – – – – 28</p><p> Figure 3.8: Buzzer [11]- – – – – – – – 30</p><p>Figure 3.9: Light Emitting Diode [12]- – – – – 31 </p><p>Figure 3.10: Four Types of Diodes [13]- – – – – 32</p><p> Figure 3.11: Electrolytic Capacitor [14]- – – – – 33</p><p> Figure 3.12: Fix Resistor [15]- – – – – – 35</p><p>Figure 3.13: A Toggle Switch [16]- – – – – – 36</p><p>Figure 3.14: Four Types of Transistor [17] – – – – 36</p><p>Figure 4.1: systematic Circuit diagram of the project – – – 40</p><p>Figure 4.1:1 Circuit diagram of the project- – – – – 41</p><p>Figure 4.2: PVC wire [18]- – – – – – – 42</p><p>Figure 5.4:1 The picture of the porject- – – – – 48</p><p>T<strong>ABLE OF CONTENTS</strong></p><p>Title page — – – – – – – – – – i</p><p>Certification – – – – – – – – – – ii</p><p>Approval page – – – – – – – – – – iii</p><p>Dedication – – – – – – – – – – – iv</p><p>Acknowledgement – – – – – – – – – v</p><p>Abstract – – – – – – – – – – – vi</p><p>List of figure – – – – – – – – – – vii</p><p>Table of contents – – – – – – – – – – viii</p><p><strong>
Chapter ONE
INTRODUCTION
- </strong></p><p>Introduction </p><p>
- 1.1 Background of Study- – – – – – – – 1</p><p>1.2Problem Statement– – – – – – – – 3</p><p>
- 1.3 Aim and Objectives – – – – – – – – 5</p><p>
- 1.4Significant of the project – – – – – – – 6</p><p>
- 1.5Scope of Study – – – – – – – – – 6</p><p>
- 1.5Justification of the Project – – – – – – – 6</p><p>
- 1.7limitations – – – – – – – – – 7</p><p>
- 1.8project report organization – – – – – – – 8</p><p><strong>
Chapter TWO
LITERATURE REVIEW
- </strong></p><p>Literature Review</p><p>
- 2.1History of Gas Detection system – – – – – – 10</p><p>
- 2.2History on Gas Detector Development- – – – – 11</p><p>
- 2.3How Gas Detectors Work- – – – – – – 12</p><p>
- 2.4Methods of Gas Detection- – – – – – – 13</p><p><strong>
Chapter THREE
SYSTEM DESIGN AND IMPLEMENTATION
- </strong></p><p>
- 3.1Design Methodology – – – – – – – – 21 </p><p>
- 3.2System Design Method – – – – – – – 23</p><p>
- 3.3System Analysis – – – – – – – – 24</p><p>
- 3.4Circuit working – – – – – – – – 26</p><p>
- 3.5microcontroller unit – – – – – – – – – 26</p><p>
- 3.6power supply unit — – – – – – – – 27</p><p>
- 3.7DC regulator – – – – – – – – – – 28</p><p>
- 3.8Other components used in the project – – – – – – 29 </p><p>
- 3.9LED – – – – – – – – – – – 31</p><p>
- 3.10Diode – – – – – – – – – – – 31</p><p>
- 3.11Capacitor- – – – – – – – – – 32</p><p>
- 3.12Resistors – – – – – – – – – – 33</p><p>
- 3.13Switch- – – – – – – – – – – 35</p><p>
- 3.4Transistor – – – – – – – – – – 36</p><p><strong>
Chapter FOUR
SYSTEM TESTING AND EVALUATION
- </strong></p><p>System Implementation</p><p>
- 4.1Construction procedures – – – – – – – 38</p><p>
- 4.2Interconnection of components – – – – – – 41</p><p>
- 4.3Software implementation – – – – – – – – 42</p><p>
- 4.4Program hex file- – – – – – – – – 43</p><p>
- 4.5Project costing – – – – – – – – – 44</p><p><strong>
Chapter FIVE
SUMMARY, CONCLUSION AND RECOMMENDATIONS
- </strong></p><p>System Testing and Packaging</p><p>
- 5.1System Test – – – – – – – – – 46</p><p>
- 5.2Test Plan and Test Data – – – – – – – 46</p><p>
- 5.3Components Test – – – – – – – – 47</p><p>
- 5.4Packaging – – – – – –</p><p></p></div><h3></h3><br> <br><p></p>
Project Abstract
<p> Gas is supplied in pressurized steel cylinders. As this gas is heavier than air, when it leaks from the cylinder it flows along floor and tends to settle in low spots such as a basement to cause fire or suffocation if not dealt with. To handle gas leak situations, this project presents the design and construction of a Gas detection system. A gas detection system is an electronic device that detects leakage of liquefied petroleum gas and alerts the user through acoustic indication. The system consists of microcontroller, drivers, regulated power supply, alarm circuit and an MQ-6 gas sensor. The MQ-6 gas sensor has a high sensitivity to propane, butane, isobutene, natural gas and can also be used to detect combustible gases, especially methane. The project is designed to detect LPG from concentration of 200 PPM (parts per million) to 10,000 PPM in an area, then the out pin of the sensor goes low to drive a microcontroller which is programmed to produce a high frequency alarm. A buzzer is used to produce the high frequency audible alert signal while a 9v battery powers the system. This project can be used to detect gas leakages at home, in a car, storage tank environment or in a service station. It can be easily implemented to industrial level by upgrading its ranges. The implementation of the project is so important in every home, office and industries because there are many gases that can be harmful to organic life, such as humans or animals. <br></p>
Project Overview