Preparaed byNitish Kumar Singh

Hydrogen Energy

INTRODUCTION

1.Hydrogen is a colourless $ odourless gas. It is highly combustible $a source of energy. 2.In normal state hydrogen is lightest of all gas.

Hydrogen is very stable in normal condition , it is

undergoes various reaction at elevated temperature . When it mixed with Oxygen it gives 29,000 calories per gram ,but in coal gives 7800 calorie per gram energy.

Sources of Hydrogen Energy

Breaking down the hydrocarbon (mainly methane)

Electrolysis from water. By reacting water of metals.

Bio-photolysis – The production of hydrogen from water with the help of sunlight .

Advantage of Hydrogen Energy

Hydrogen is colourless & odourless and non polluting , yielding pure water vapour as exhaust when combusted in air .

Hydrogen is the lightest chemical element and has the best energy to weight ratio of any fuel.

Hydrogen can be produced anywhere , it can be produced domestically from the decomposition of water .

Disadvantage

Hydrogen is difficult to handle , store , and transport .it requires heavy , cumbersome tanks when stored the gas .

It is impossible to obtain hydrogen gas without expanding energy in the process.

Other than some volcanic emanations , hydrogen does not exist in it pure form in environment .