MODIFIKASI ALAT PERCOBAAN KAVITASI PADA VENTURE DENGAN POMPA JENIS TURBIN UNTUK FLUIDA AIR SISTEM TERBUKA ( MODIFICATION OF CAVITATION TEST INSTRUMENT ON THE VENTURE WITH TURBIN TYPE PUMP FOR OPEN FLUID CIRCUIT )

Abstract

”Cavitation is the water hammer emergence in the fluid flow because of the decrease, so the pressure is below its saturated vapor pressure. Cavitation causes noise and vibration which heard in a pump operation. If me keep operation the pump, cavitation will cause the decline of the pump work and in the next level, it will damage the instalation and the pump it self. The rearrangement of the experiment tool have been modified in order to compare between the use of cylindrical venture and cubic venture. The experiment is aimed to get the characteristic data and how far the cavitation influence to ward the head, flow rate, rotation and friction coefisient with varios temperature and it also rules water fluid and kerosine. By using two instalation system, opened and closed, hopefully this experiment could reveal the difference, both in the vacuum in the atmosphere pressure condition. From the result of the expriment and the data analysis, it could be known the caracteristic of the cavitation influence with total head 4,438 m, maximum flow rate 19 in 20oC of temperature and minimum flow rate in 15 m in 60 oC of temperature, mean while the maximum temperature. From the result of experiment conclusioncould be drawn that characteristic of cavitation happened in the different temperature.”