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21-06-2017, 11:10 PM

pedal powered water pump project report pdf available here

jaseela123d · 27-06-2017, 03:57 PM

A water system includes an alternating pump operated by pedaling. The pump and includes a housing in which a pedal and pedal rotate a drive shaft an eccentric pin which rotates with the drive shaft moves a connecting rod which in turn causes the plunger to move linearly. The push rod extends into a pressure-tight chamber formed above the lift pipe. A pump rod connected to the piston extends to the conventional piston through a verified movement. Pumps are a common means of raising water from a clean drinking water source to a useful access point, but all pumps have moving parts and are therefore designed to break the proper selection of a pump to reduce downtime Undesirable and will enable the local community to manage their water source. Here we use the pedal pump, powered by our legs instead of arms to raise the water from a depth of seven meters. Throughout human history, energy has generally been applied through the use of arms, hands, and back. With few exceptions, only with the invention of the sliding seat trailer cover, and particularly of the bicycle, the legs also began to be considered as a normal means to develop the power of human muscles. A person can generate four times more (1/4 horsepower (hp)) per pedal than by hand-cranking. At a speed of 1 / 4hp, continuous pedaling can only be done for short periods, approximately 10 minutes. However, pedaling at half of this power (1/8 hp) can be maintained for about 60 minutes. The main use of pedal power today is still for bicycling at least in the range of high power (75 watts and above mechanical power). In the lower power range there is a number of pedal power usage for agriculture, construction, water pumping and power generation that appear to be potentially advantages, at least when the power of the electric motor or internal combustion engine is not available or is very Expensive

Alternate pump Operating principle The alternating pump is a positive displacement pump, which causes a fluid to move by trapping a fixed amount of it, thereby displacing that trapped volume in the discharge pipe. The fluid enters a pumping chamber through an inlet valve and is expelled through an outlet valve by the action of the piston or diaphragm. They are simple action; Independent suction and discharge strokes or double effect; Aspiration and discharge in both directions. During the suction stroke the piston moves to the left thus creating vacuum in the cylinder. This vacuum causes the suction valve to open and water to enter the cylinder. During the delivery stroke the piston moves to the right. This increasing pressure in the cylinder causes the suction valve to close and the supply open and the water is forced into the delivery tube. The air container is used to obtain a uniform discharge. Alternating pumps are self-priming and are suitable for very high heads at low flow rates. They provide reliable discharge flows and are often used for measurements because of flow constancy. The flow rate is changed only by adjusting the rpm of the driver. Operating Principle of the Alternating Pump These pumps provide highly pulsed flow. If a gentle flow is required, then the discharge flow system should include additional features such as accumulators. A relief valve with a safe pressure is used on the discharge side of all positive displacement pumps. The performance of a pump is characterized by its net head h, which is defined as the change in the Bernoulli head between the suction side and the pump supply side. H is expressed in equivalent column height of water.

It can be understood in the following video:

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