ANALISA PENGARUH PANJANG PIPA GALVANIS DAN DIAMETER BUKAAN KATUP TERHADAP HEAD POMPA PADA POMPA HIDRAM

Abstract

Hamlet Ketos and hamlets Cabe is 2 (two) of 7 (seven) hamlet in Wonodadi Kulon, Ngadirojo Pacitan, the problems faced by the community, especially for Hamlet Ketos and hamlets pepper the area of hills and rocks are prone / difficulty getting water net. The approach offered to solve the problem is by making a catchment basin, hydraulic ram and tank water divider. Hydraulic ram works on the principle of water hammer. When the fluid flow is stopped suddenly it changes the momentum of the fluid future will increase the pressure suddenly. Increased pressure is used to lift some of the water to higher ground. Then designed hydraulic ram which uses the potential energy of the water as a vehicle. In designing the authors use the pump inlet pipe length variation of 18 meters, 24 meters and 30 meters and a diameter of the valve opening is full (0.1 meters), 0.08 meters and 0.065 meters. Tests carried out in the river, precisely in Hamlet and Hamlet Ketos Cabe, Pacitan. It can be concluded at this test that by using a long inlet pipe diameter of 30 meters and full valve opening is 0.1 meters and the discharge pump head has more leverage than other tests, namely the pump head 173 m and water discharge (output) generated amounted to 6.68 L / min. So the longer the pipe entrance (L), the higher the pressure dihasilakan, as well as thelarger the diameter of the valve opening, the greater the pressure acting on the hydraulic ram, because the greater the time and speed, the momentum was also greater, so the impulse weight the exhaust valve is closed suddenly make a greater boost the flow exceeds the static pressure inlet pipe, and it affects the pump head on the hydraulic ram Keywords: hydraulic ram, a long inlet pipe, the diameter of the valve opening