Energy Technology
Introduction
Introduction
Their are only two major form of energy:
Kinetic energy
Potential energy
Various types of energy are:
Thermal energy
Chemical energy
Nuclear energy
Electrical energy
Motion energy
Radiant energy
Sound energy
Elastic energy
Gravitational energy, etc.
Energy Chain
Definition
It is defined as energy paths from source to energy
consumption to final end use energy benefit.
One form of the energy is transformed into another form via
any suitable medium.
Energy transformation can be divided three different stages:
Primary Intermediate Final/ Ternary
energy energy energy
Example
Heat
Naturally Intermediate
Final electrical
obtained mechanical
form of energy
primary form form of energy
Steam
Types of energy
Two major types of energy:
Conventional source of energy
Non-conventional source of energy
Conventional energy
the energy source which is obtained from fixed reserves in
nature like oil, gas and coal.
In other words conventional energy is also termed as non-
renewable energy sources, or fossil fuels
Non-conventional energy
Non-conventional sources of energy are the energy
sources which are continuously replenished by natural
processes. These cannot be exhausted easily, can be
generated constantly so can be used again and again.
List of sources of energy
Conventional form of energy:
Coal
Petroleum
Natural Gas
Fuel Woods
Thermal Power Plant..
Nuclear energy
Non-conventional form of energy
Solar energy,
Wind energy,
Tidal energy,
Biomass energy
Geothermal energy etc.
Conventional energy sources
Coal
As a fossil fuel burned for heat, coal supplies about a quarter of
the world's primary energy and two-fifths of its electricity.
Some iron and steel making and other industrial processes burn
coal.
Petroleum
it consists of naturally occurring hydrocarbons of various
molecular weights and may contain miscellaneous organic
compounds.
The name petroleum covers both naturally occurring
unprocessed crude oil and petroleum products that are made
up of refined crude oil.
Natural gas
Natural gas (also called fossil gas), is a naturally
occurring hydrocarbon gas mixture consisting primarily
of methane, but commonly including varying amounts of other
higher alkanes, and sometimes a small percentage of carbon
dioxide, nitrogen, hydrogen sulfide, or helium.
Cont...
Fuel wood
Wood fuel (or fuelwood) is a fuel such as firewood, charcoal,
chips, sheets, pellets, and sawdust. The particular form used
depends upon factors such as source, quantity, quality and
application.
Thermal power plant
A thermal power station is a power station in which heat
energy is converted to electric power. In most, a steam-driven
turbine converts heat to mechanical power as an
intermediate to electrical power. Water is heated, turns into
steam and drives a steam turbine which drives an electrical
generator.
Nuclear energy
Nuclear power is the use of nuclear reactions that release
nuclear energy to generate heat, which most frequently is
then used in steam turbines to produce electricity in a nuclear
power plant. Nuclear power can be obtained from nuclear
fission, nuclear decay and nuclear fusion reactions.
Non conventional energy
sources
Solar energy
Solar energy comes from the sun and can be captured with
various technologies, primarily solar panels
The “photovoltaic effect” is the mechanism by which silicon solar
panels harness the sun’s energy and generate electricity
Wind energy
Wind power is one of the fastest-growing renewable energy
technologies.
Wind is used to produce electricity using the kinetic energy
created by air in motion. This is transformed into electrical energy
using wind turbines or wind energy conversion systems. through
electromagnetism.
Cont...
Tidal energy
Tidal energy is produced by the surge of ocean waters during
the rise and fall of tides. Tidal energy is a renewable source
of energy.
Tidal energy production is still in its infancy. The amount of power
produced so far has been small. There are very
few commercial-sized tidal power plants operating in the world.
The first was located in La Rance, France.
Biomass energy
Biomass is fuel that is developed from organic materials, a
renewable and sustainable source of energy used to create
electricity or other forms of power.
Biomass power is carbon neutral electricity generated from
renewable organic waste that would otherwise be dumped in
landfills, openly burned, or left as fodder for forest fires.
In biomass power plants, wood waste or other waste is burned
to produce steam that runs a turbine to make electricity, or that
provides heat to industries and homes.
Cont...
Geothermal energy
Geothermal energy is heat derived within the sub-surface of
the earth.
Water and/or steam carry the geothermal energy to the
Earth’s surface.
Depending on its characteristics, geothermal energy can be
used for heating and cooling purposes or be harnessed to
generate clean electricity.
