Resources of energy for B-Tech (Mechanical)

1. ENERGY RESOURCES

2. Title and Content
• Introduction
• Primary And Secondary Energy
• Commercial And Non-commercial Energy
• Renewable And Nonrenewable Energy
• Conventional And Non-conventional Energy
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3. SOURCE EXTRACTION PROCESS STATION OUTPUT ENERGY SYSTEM
COAL Open/ deep mines Preparation
Power station Electricity
Nil
HYDRO ------------- Purification
Thermal steam
(Secondary Energy)
NUCLEAR Mining Enrichment
NATURAL GAS Gas well Treatment
PETROLUEM Oil well Cracking / Refining
Energy resources flow diagram
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6. INTRODUCTION
Energy is a key input in economic growth there is a close link between
the availability of energy and the future growth of a nation. However, in
a developing country like Pakistan greater the availability of energy the
more is its shortage.
Energy is consumed in a variety of forms in Pakistan. Fuelwood,
animal waste are traditional sources of energy that continue to meet
the energy requirements in Pakistan. These non-commercial fuels are
gradually getting replaced by commercial fuels such as coal, lignite,
petroleum products, natural gas and electricity.
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7. Classification Of Energy Resources
Energy can be classified into several types as follows;
 Primary and secondary energy
 Renewable and nonrenewable energy
 Commercial and non-commercial energy
 Conventional and non-conventional energy.
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8. Primary and secondary energy:
Primary energy sources are those that are either form or stored in
nature.
Common primary energy sources are
 Coal
 Oil
 Natural gas
 Wood
 Water
Primary energy sources are costly converted in industrial utilities
into secondary energy sources.
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9. Commercial and non-commercial energy:
Commercial energy;
The energy sources that are available in the market for definite prices are
known as commercial energy.
Example:
Electricity
Oil and Natural gas
Non-commercial energy:
The energy sources that are not available in the commercial market for a
price are known as non-commercial energy.
Example:
Fire wood
Agro west in rural area
Solar energy for water heating. 5/13/2017ROOH UL AMIN PIMSAT PAKISTAN 9

10. Commercial energy
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11. Non-commercial energy
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12. Renewable and nonrenewable energy:
Renewable energy:
Renewable sources of energy are those natural resources which are inexhaustible and can be used to
produce energy again and again.
Examples:
 Solar Energy
 Wind Energy
 Geothermal Energy
 Tidal Energy
 Water Energy
 Bio Energy.
Non-Renewable Resources of Energy: Those natural resources which are exhaustible and
cannot be replaced once they are used.
Examples:
Fossil fuels such as coal, oil and gas which together supply 98% of the total world energy demand today,
and likely deplete with the passage of time.
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15. Conventional and non-conventional energy:
Conventional:
The energy resources which are being traditionally used for many decades
and were in common used around oil crises of 1973 are called
conventional energy resources.
Non-conventional energy resources:
Which are considered for large scale in oil crises of 1973 are solar, wind &
bio mass.
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16. THANKS
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