To enhance efficiency
of lift irrigation pumpset system
7 simple ways from PCRA
Which type of foot-valve saves more
diesel?
The foot –valve
shown in fig. A is fuel-efficient because it has a wider mouth and larger
area of opening.The bigger valve helps save diesel because less fuel and
less power is needed to draw water from the well due to reduced friction
& resistance…
Farmers in Gujarat save 10% diesel.
PCRA demonstrated
to the farmers in Gujarat that they can save about 10% diesel by simply
using a foot-valve with larger area of opening than the one with narrow
area of opening. An efficient, low friction ISI mark foot-valve, though
slightly costlier, pays back fast the extra cost by saving a lot of diesel.
Which type of pipeline helps save
diesel?
The rigid PVC pipeline,
with bigger diameter shown in Fig. A helps in saving diesel.
More diesel is require to pump water
through small diameter pipes because it offers higher friction. If the
pipe is bigger than the pump flange size, a reducer (see Fig. A) must be
used.
A20 mm decrease in diameter increases
the friction 3 times. If, in place of 100mm (4”) pipe, an 80 mm (3”) pipe
is used, the loss due to friction for drawing the same quantity of water
will be three times more, which will cause higher fuel consumption.Also
pipes made of rigid PVC cause lower frictional loss as compared to pipes
made of conventional galvanized iron. Such pipes thus help save fuel.
Which type of pipeline arrangement
helps save diesel?
The one shown in Fig. A helps save
diesel.
The pipeline arrangement
shown in Fig. B has many bends and unnecessary fittings, which causes higher
consumption.Each bend in a 80mm (3”) dia. pipeline leads to as much friction
loss as an additional pipe length of 3 meters.Therefore, fewer the number
of bends and fittings in a pipe, more the saving of diesel.
Which type of bend should be used
in the pipeline?
The type of bend shown in Fig. A
should be used.
Sharp bends and L-joints in the
pipe lead to 70% more frictional loss than standard bends.
Which type of installation is
better?
The one shown in Fig. A is better.
The pump works most efficiently
when it is not more than 10 feet above the water level.
If the well is deep, the pump should
be installed on a platform at the right height.
Which length of pipe helps save
diesel?
The pipe of short
length shown in Fig. A helps save diesel.
The pipe shown in Fig. B is unnecessarily
high and would require more fuel for pumping water.
Studies reveal that a farmer can
save 15 liters of diesel every month simply by reducing the pipe height
by 2 meters.
Which transmission is better?
The transmission shown in Fig. A
is better.
The belt in the
second picture is old and worn out. It can slip or snap anytime, causing
loss in the transmission of power and hence increased fuel consumption.
Checkpoints for efficient transmission
-
Reduce the number of joints in the belt.
-
Check and adjust belt tension frequently.
-
Check alignment of the pump with the
engine.
How to select the right type
of pumpset?
The various pump
sets available in the market require different quantities of diesel for
pumping water. Therefore it is important to choose an ISI mark pump. But
that’s not all.
The pump you select should be suitable
for your well and your water requirements. It is not necessary that the
pump that is good for your neighbouring farm is good for you too. If you
give the following information to an expert, he will be able to help you
choose the right pump.
1) The depth of your well.
2) The area of your field.
You should also
select the right engine, which makes the pump run at the right speed. For
this, consult an expert. The engine you choose should have sufficient horsepower
(H.P.) to operate the pump. The expert can calculate the amount of power
needed for your engine. It is always better and beneficial to go in for
a well-known and good quality engine. Look for the ISI mark of quality
on the engine.
To ensure a high
level of operational efficiency of your diesel-powered engine, ensure the
following:
-
Engine should not emit too much smoke.
-
Use correct grade of lubricant recommended
by the manufacturer.
-
Engine should be fitted with an oil
filter.
-
Engine should have an air filter, which
should be cleaned regularly.
-
Engine jacket cooling water should be
warm.
TEN COMMANDMENTS OF SAVING DIESEL
IN TRACTORS
1) Know your tractor
Refer tractor manual to know about
the maintenance and operation of your tractor.
Research shows that a badly maintained
tractor wastes upto 25% of precious diesel.
Remember:
-
When in doubt, check with an authorized
garage or your dealer.
2) Stop diesel leaks
Check your tractor daily for any
leakages. A leak of one drop per second can cost you 2000 liters of diesel
per year.
Remember:
Inspect joints in
-
Fuel tank
-
Fuel pump
-
Fuel injector and
-
Fuel lines.
3) Turn your engine off when you stop
An idling engine wastes more than
1 liter of diesel every hour.
Remember:
-
Keep your battery, dynamo and self-starter
in top running condition. If they are faulty they can force you to idle.
4) Drive in the correct gear…always
If your tractor struggles to pull
a load with the throttle at maximum, shift to a lower gear. If it accelerates,
shift to a higher gear.
Wrong gear selection can increase
fuel consumption by 30% and reduce field output by 50%.
Remember:
-
Smoke from a tractor indicates overloading.
5) Does your tractor smoke too?
A tractor that smokes excessively
wastes precious diesel.
Oversized implements
or using the wrong gear, cause tractor smoke.
If your tractor continues to emit
smoke, have it overhauled at a reputed authorized garage. Test nozzles
and recalibrate the fuel injection pump. Faulty fuel injection can increase
fuel consumption by 25%.
Remember:
-
Don’t use oversized implements.
-
Service the engine regularly.
6) Dirt – your engine’s worst enemy
Good air filtration
is important since tractors often operate in dusty conditions. Research
has proved that unfiltered air wears out cylinder bores 45 times faster
and piston rings 115 times faster than normal.Good fuel filtration is important.
Dirty fuel will endanger the engine. Use quality fuel filters and replace
them as recommended.
Remember:
-
Do not replace both fuel filters simultaneously.
-
Clean air filters regularly.
7) Wheels that slip waste diesel
Keep tractor wheels from slipping
by adding water ballasts and/or cast iron weights. Add just the right amount
of weight to keep wheel slippage to the minimum.
Remember:
-
Remove ballasts after field operations
are over.
8) Worn out tyres reduce pulling power
Relug your tyres on time. While
refitting tyres, make sure the ‘V’ treads point downwards when viewed from
the front.
Remember:
-
Maintain correct tyre pressure. Different
tyre pressures are recommended for road and field work. Check your manual
or ask dealer.
9) Match hauling capacity with
load
Choose implement
size and tractor operating speed to match your engine’s full horsepower.
Run in the highest gear possible at which your tractor doesn’t emit smoke.
If your tractor on full throttle accelerates even in the top gear, your
implement is too small. A bigger implement or a multiple arrangement of
implements may help you get the maximum benefit out of the tractor power
and avoid diesel waste.You may consume upto 30% more fuel if you use undersized
implements or operate at low speeds.
Remember:
-
Consult an expert when selecting implements.
10) Plan your field run
Plough according
to a planned layout reduces idle running, backtracking and awkward turns.
You will save diesel if you plough long furrows instead of short ones.
Remember:
-
Your first openings must be straight
and parallel.
-
Side lands and headlands should be ploughed
around the field continuously without reploughing the field.
Source : P C R A , New Delhi
|