What is designing?
Designing is to formulate a plan for the satisfaction of a human need. The particular need to be satisfied may be quite well defined from the beginning. Here are two examples in which needs are well defined:
1) How can we obtain large quantities of power cleanly, safely and economically
without using fossil fuels and without damaging the surface of the earth?
2) If a gear shaft is giving trouble, then there may be some fault
in it which need to be rectified.
What is a Turbocompressor?
Compressor is simply a machine which is used to pressuirize the fluids.Turbo
means a Compressor which is driven by a Turbine..
Air Compressor, also air pump, machine that decreases the volume and
increases the pressure of a quantity of air by mechanical means. Air thus
compressed possesses great potential energy, because when the external
pressure is removed, the air expands rapidly. The controlled expansive
force of compressed air is used in many ways and provides the motive force
for air motors and tools, including pneumatic hammers, air drills, sandblasting
machines, and paint sprayers.
Air compressors are of two general types: reciprocating and rotating.
In a reciprocating, or displacement, compressor (see Fig.1),
which is used to produce high pressures, the air is compressed
by the action of a piston in a cylinder. When the piston moves to the right,
air flows into the cylinder through the intake valve; when the piston moves
to the left, the air is compressed and forced through an output-control
valve into a reservoir or storage tank.
A rotating air compressor (see Fig. 2),
used for low and medium pressures, usually consists of a bladed wheel
or impeller that spins inside a closed circular housing. Air is drawn in
at the centre of the wheel and accelerated by the centrifugal force of
the spinning blades. The energy of the moving air is then converted into
pressure in the diffuser, and the compressed air is forced out through
a narrow passage to the storage tank.
As air is compressed it is also heated. Air molecules tend to collide
more often with each other in a smaller space, and the energy produced
by these collisions is evident as heat. This heat is undesirable in the
compression process, so the air may be cooled on the way to the reservoir
by circulating air or water. For high-pressure compressed air, several
stages of compression may be employed, with the air being further compressed
in each cylinder and cooled before each stage.
What is Boosting?
In such a condition when the inlet pressure to
the compressor is greater than the ambient pressure then the process of
compresson is called as boosting.
What is Natural Gas?
Natural Gas is simply Marsh Gas (locally called
Sui Gas) which contains about 92% of Methane CH4.
