IDENTIFIKASI KEGAGALAN SISTEM KERJA KONDENSOR TERHADAP KONSUMSI AIR TAWAR AUXILIARY BOILER DI MV. KARTINI SAMUDRA

GABRIEL, DAMASUS BINTANG PRAKARSA (2018) IDENTIFIKASI KEGAGALAN SISTEM KERJA KONDENSOR TERHADAP KONSUMSI AIR TAWAR AUXILIARY BOILER DI MV. KARTINI SAMUDRA. Diploma thesis, POLITEKNIK ILMU PELAYARAN SEMARANG.

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Abstract

Gabriel Damasus Bintang Prakarsa, NIT.51145316.T, 2018, “Identification of Condenser System Failure to Fresh Water Consumption of Auxiliary Boiler in MV. Kartini Samudra”, Diploma IV, Engineering, Semarang Merchant Marine Polytechnic, Academic Adviser: (I) F.Pambudi Widiatmaka, ST, MT., M.Mar.E., (II) Capt. Hadi Supriyono MM, M.Mar. Condenser is one kind of auxiliary engines on the ship that serves to convert a substance in the form of steam into water. While the cascade tank is a storage equipment to contain the water condensed from the steam. Both of them are auxiliary engines that have important functions in machining processes that produce hot steam on the ship. The method used in this study is a qualitative method with Fishbone Analysis approach, which aims to find the main causes of failure of the condenser working system and its impact on freshwater auxiliary boiler consumption. Then the method is combined with the Fault Tree Analysis method to determine the solutions of the most fundamental problems (Basic Event) obtained. This study found that the main causes of the failure of the condenser working system are 1) the permeability between the cooling chamber and the cooled substance on the condenser due to inappropriate gaskets; 2) a blockage on the tube side in the condenser due to the lack of treatment on the sea chest, and 3) the damage to the inlet valve caused by the lack of maintenance and control. Those have an impact on increased freshwater consumption of auxiliary boiler internally. The Plan Maintenance System (PMS) is one of the most effective ways of performing machining maintenance. Good coordination between the company and the ship’s crew is required to obtain a response to the availability of spare parts required in the maintenance of machinery on the ship. Water kettle examination also needs to be done regularly so that the water quality of the kettle is maintained and the utility of the machine can last longer. Keywords : Plan Maintenance System (PMS), condenser, auxiliary boiler.

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