Energie

OUTLINE  

INTRODUCTION……………………………………………………..2

1. DEFINITIONS………………………………………………………2

1. Energy……………………………………………………………………2
2. Renewable energies……………………………………………2-3
3. Non-renewable energies……………………………………….3

1. DIFFERENTS TYPES AND FORMS OF ENERGY…….4

     A-Types of Energy…………………………………………4-5

     B- Forms of Energy………………………………………..5-7

1. DIFFERENTS SOURCES OF ENERGY…………………….7

1. Renewable sources of Energy……………………..7-10
2. Non-renewable sources of Energy…………………11

1. ADVANTAGES AND DISADVANTAGES OF ENERGY…11

1. Advantages of Energy…………………………………11-12
2. Disadvantages of energy…………………………….13-14

1. IMPORTANCE OF ENERGY…………………………………14

• Utility of energy…………………………………………………14-15
•  what can the Beninese authorities do for the production of energy and boost the country's energy efficiency?...........................................................15-16

CONCLUSION……………………………………..17

        INTRODUCTION

  In the world, there are different sources of usable energy in order to meet the many demands of the world's population, which increases day by day. These energy demands concern transport, heating, as well as the use of the telephone or even television. This use of energy has improved the standard of living of people in developed countries. We can therefore ask what the types, forms and sources of energy are, not to mention the advantages and disadvantages of global energy consumption. In the first place we will present the types and forms of energy and secondly the sources of energy and finally the benefits and consequences of energy.

1. DEFINITIONS

1. Energy

In the common-sense energy refers to everything that makes it possible to do a job, to make heat, to produce light, to create a movement. According to the English Dictionary, Energy is a force, a force in action. According to our copybook, energy is a power that causes somebody or something to more or to do anything.

1. Renewable energies

Renewable Energies are energy sources whose natural renewal is fast enough that they can be considered inexhaustible on a human time scale. They come from natural cyclic or constant phenomena induced by the stars: the sun above all, for the heat and light, but also the moon (tides) and the Earth (geothermal). Their renewable nature depends on the one hand of the speed at which the source is consumed, and on the other hand the speed at which it regenerates. Solar energy, wind energy and biomass are three types of renewable energy.

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1. Non-renewable energies

Non-renewable energy is a source of energy that does not renew itself quickly enough to be considered inexhaustible on a human scale, or even that is not renewed at all, as opposed to renewable energies. The main sources of non-renewable energies are derived from hydrocarbons, such as oil, natural gas and oils.

Non-renewable energies can be classified into two large families:

• Fossil energy: They are called fossils because they come from the very slow decay of organic elements (derived from the decomposition of animals or plants) several million years ago. One example is coal, natural gas and oil.

Their generation rate is extremely slow on a human scale, and intensive consumption, hence the current risk of depletion.

• Nuclear energy, with limited uranium deposits. However, there are supporters of the renewable nature of nuclear energy, although the theory has not yet reached practical) reality.

II-  DIFFERENTS TYPES AND FORMS OF ENERGY

1. TYPES OF ENERGY

There are two types of energy that which are both useful for a country development: primary and secondary energy.

1. Primary energy

A primary energy source is a form of energy available in nature before any transformation. If it is not usable directly, it must be turned into a secondary energy source to be usable and transportable easily. In the energy industry, primary energy production is distinguished from its storage and transport in the form of energy vectors and final energy consumption.

• Some forms of primary energy

Primary energy can be manifested by transformations of matter:

Physical transformations in a gravitational field: mechanical work associated with the movement of a mass of material subjected to gravity; Acoustic wave by elastic strain of a fluid;

Transformations by electromagnetic interactions: displacement of ionized particles and orientation of the magnetic moment of materials; Mean kinetic energy variation of molecular and atomic microscopic agitation; Enthalpy of chemical state change; Thermal transfer by electromagnetic radiation associated with a chemical reaction to modify the bonds between the atoms forming molecules, propagation of photons;

Transformations of matter into the physics of subatomic particles by strong or weak nuclear interactions: radioactive decay, fission or nuclear fusion; Electromagnetic radiation associated with atomic nucleus modification, corpuscular radiation of high energy subatomic particles.

1. Secondary energy

Secondary energy is a transformation-derived energy, unlike primary energy, which refers to energy available in the environment and without transformation. This energy is often easier to store, transport and use than primary energy sources. It is for this reason that the forms of secondary energy are called "energy vectors". This is particularly true of electricity, refined petroleum fuels (petrol, diesel fuel) or, in the future, hydrogen.

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