POWERLESS FAN
We know that now-a-days electricity
is a scarce resource
and the source
for current is
becoming meager...
Here we presented an idea about how
electricity can be
saved in a
large scale...
Our
powerless fan works
on the principle of
Stirling Engine Cycle...
The
major parts associated
with the construction
of fan are STIRLING ENGINE,COMPRESSING UNIT,STORAGE
UNIT and VALVES.
The
air entering the valves(remote-controlled) gets compressed
while entering into the
compression unit and thus
becomes it hot, due to which
we can
make the Stirling engine to
operate. The piston attached
to both engine and
the connecting rod
of the fan, makes it to
rotate thereby a sufficient supply of air
inside the room is possible. The speed of the wings can be
controlled easily by using a
regulator .This is the principle..
Principle of
working
Stirling cycle
is a regenerative cycle
that works on hot air
only...
Stirling cycle
has theoretical efficiency
equal to Carnot
cycle due to
the inclusion of
re-generator...
Efficiency = w/Qs = Qs-Qr/Qs = R log
e (Rc).(T2– T1)/R T2 loge (Rc) +(1-nr). Cv (T2 – T1)
Valves
The first
unit of this
powerless fan is
the valves…
The
working of valve
in the powerless
fan is to
allow the atmospheric
air(oxygen) to the
storage unit.
This 3 valves
resembles the same
as the fins in
the air-conditioning system…
This controls
the amount of
air that enters
inside the unit…
The second
important unit is
the atmospheric air
storage unit in
which AIR is
been stored…
The
storage unit is
mainly because to
supply air if
there is any
shortage in the
air flow to
the compressor or
to suck the
air if there
any over flow
of air which
decreases the efficiency
of Stirling engine...
Storage unit
is an additional
attachment for this
powerless fan…
Compression unit
As we
all know , in
general , compression unit compresses
the air entering
through it…
When the
pressure and temperature
of the air
increases , the compression takes
place…
Compressor is
a machine which
takes air during
suction stroke at
low pressure and
then compresses it
to high pressure
in a piston
cylinder arrangement...
Rotary compressor is used
because they are
suitable for high
discharge at very
low discharge pressure...
Discharge is
as high as 3000
m3/min...
Piston and
Connecting Rod
A piston
is attached to
the connection rod
of the fan
and also to
the compression unit , and
it makes reciprocating
motion between the
two…
This
reciprocating motion of the piston
is converted into rotary
motion by the
connecting rod...
At the
instant the compression
begins , the piston
starts to exhibit
the motion and makes
the connecting rod
of the fan
to rotate…
Working of Stirling
Engine
When hot compressed air comes to the
inlet of Stirling engine the engine starts working...
The working of Stirling engine is
based on the Stirling cycle(Regenerative cycle)...
The compression and expansion of the
Stirling cycle are considered reversible isothermal processes...
After the compression of the intake
hot compressed air the expansion of hot air starts...
Working of Fan
The valves
are made opened
by a remote-controlling system…
The atmospheric
air goes into
the valve, to the
compressing unit…
The piston
which is attached,
starts to promote
reciprocating motion, due to
the process of air compression…
And in
turn, the connecting rod of the
fan rotates and
hence the rotation
of wings takes
place…
By using
a regulator, the speed
of the fan
can be controlled…
Advantages
The first
and the foremost
advantage of this
powerless fan is
the SAVING OF
POWER…
Less maintenance and low-costing equipment…
Highly
EFFICIENT…
