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All Journal Dinasti International Journal of Education Management and Social Science International Journal of Advanced Multidisciplinary
Sursina, Sursina
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Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences

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Performance Analysis of Sea Water Cooling Pumps on The Smoothness of The Main Engine Cooling System on The Mt. Fail Arda Billy, Mohammad; Kurniawan, Didik Sulistyo; Sursina, Sursina; Mudakir, Mudakir
International Journal of Advanced Multidisciplinary Vol. 2 No. 2 (2023): International Journal of Advanced Multidisciplinary (July-September 2023)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v2i2.308

Abstract

The main engine sea water cooling pump is a type of centrifugal pump as one of the pumps that is often found in the ship machinery industry working on the principle of impeller rotation as a fluid transfer element driven by a propulsion engine. The liquid inside will rotate due to the impetus of the blades and cause a centrifugal force which causes the liquid to flow from the middle of the impeller and out through between the blades and leave the impeller at high speed. The sea water cooling pump has a very important role in supporting the cooling system process on the main engine. If the coolant pump does not work properly, it will result in a less than optimal cooling system. Like the problems the author experienced when carrying out sea practice on the MT ship. This causes problems with the lack of maximum performance from the pump impeller and pump vibrations that are too high. which resulted in affecting the performance of the main engine and disrupting the operation of the ship. The purpose of this research is to find out the cause of the less than optimal performance of the impeller on the pump and find a solution. and to find out the cause of too high vibration in the pump and find a solution. While this research method is a qualitative descriptive research method. The results of this study are expected to be useful in science as a contribution to ideas related to the analysis of the performance of seawater cooling pumps to support ship operations.
THE EFFECT OF LATE DELIVERY OF PARTS AGAINST SHIP OPERATIONS AT PT. SUMBERBUMI GLOBAL NIAGA Selasdini, Vidya; Sursina, Sursina; Fariz, Hasna
Dinasti International Journal of Education Management And Social Science Vol. 2 No. 5 (2021): Dinasti International Journal of Education Management and Social Science (June
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31933/dijemss.v2i5.914

Abstract

The sea transportation system plays a very important role in a country's economy. but there are still a number of issues that are of concern to commercial companies such as late delivery of spare parts and ship operations that occur at PT. Sumberbumi Global Niaga. Based on these problems the authors also conducted an analysis to determine whether there is an effect of the late delivery of spare parts to the ship's operations. The author uses quantitative research methods. With a total sample of 12 items. In searching for the calculation results the authors conducted several data analyzes with the results of the correlation test of 0.897 (rxy = 0.897) which proved that a positive correlation exists. And while tcount = 6,812 (6,812> 1,812) and fcount = 17.14 (17.14> 4.96), where if tcount> ttable and fcount> ftabel Linear regression equation is Y = A + bX, then there is a significant relationship between variable late delivery of spare parts against ship operations. Therefore, the results of the study showed that the late delivery of spare parts proved to be significant for ship operations at PT. Sumberbumi Global Niaga. The author also explained several solutions, namely by applying additional spare parts or backup. The goal is as an anticipation if there is a lack of supply of ship parts, so that ship operations are not disrupted if there is a lead time on spare parts.
Co-Authors Arda Billy, Mohammad Fariz, Hasna Kurniawan, Didik Sulistyo Mudakir Mudakir Selasdini, Vidya