CHAPTER ONE

INTRODUCTION

1.1   BACKGROUND OF STUDY

Liquefied petroleum gas (LPG) detection is very important because gas is not only an explosive but also acts as asphyxiant. It can therefore cause serious harm to your health, your family health and homes. Liquefied petroleum gas detection was pioneered in the twentieth century by coal miners who used canary birds that would pass out if there were any spike in the amount of methane in the atmosphere. Thankfully, methods of LPG gas detection have moved on from this primitive means of highlighting its presence in the air. There are now a number of methods and devices you can use for LPG gas detection. Let us briefly look at why the gas poses such a threat to human health. The use of liquefied petroleum gas and natural gas in energy sector is rapidly increasing day by day because of its properties like high calorific value, low smoke and less soot. These days LPG is most widely used in automobiles, homes and industries.

The LPG or Natural gas is flammable mixture of hydrocarbon gases like propane, butane. Due to these properties of LPG or Natural gas the leakage of these gases is a serious concern, as it results into serious threats to living beings. The worldwide natural gas or LPG transportation is done by the cylinders and high pressurized gas pipe lines. In the course of transportation, storage or usage, unwanted leaks arise due to mishandling, ageing, accidents, vandalism. LPG can lead to explosions in coal shafts, the gas trapped in the rock can be released as a result of mining and also fires in landfill sites as a result of a process known as methanogenesis. In the home, LPG is used for cooking. In advanced countries where gas tunnels pass close to sewer pipes, there is also a risk of LPG leaking into your home from sewer pipes.

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