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All Journal Proceedings Conference on Marine Engineering and its Application
Shah Muhammad
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Engineering Mechanical Engineering

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Kajian Numerik Infiltrasi Flue Gas pada Komponen Lance Tube Soot Blower Tipe PS-SL Haidar Ali Yafie M; Shah Muhammad; Moballa Burniadi
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.711

Abstract

One failure that often occurs in the sootblower is that it breaks in the lance tube caused by corrosion. Based on the results of the root analysis the failure of the cause of corrosion in the component lance tube is caused by the occurrence of flue gas infiltration which results in blockage of the vent valve. This causes the remaining blowing medium cannot be pushed into the furnace and if left for too long will cause condensation in the lance tube. Condensation mixed with corrosive substances from flue gas can accelerate the corrosion rate on the lance tube. The simulation was carried out using the CFD (Computational Fluid Dynamics) method assisted by Fluent ANSYS 17.2 software. Corrosive substances in flue gas are modeled as inert particles of fly ash using DPM (Discrete Phase Model). To overcome the infiltration problem, angular variations were made in the converging section of the under-expanded nozzle on the lance tube. The concentration of DPM particles is compared to the cross section to find out how many corrosive particles enter the soot blower. Particle concentrations at angles of 10º 15º and 20º are 2,043 kg/m³, 0.515 kg/m³, 0475 kg/m³, respectively. While the mass fraction is 0.0069, 0.0017, 0.0016, respectively. The simulation results show a reduction in infiltration with the addition of an angle to the nozzle, with an angle of 20º showing the best results.
STUDI TEKNIS DAN EKONOMIS PENGGUNAAN MESIN DIESEL TRUK (LAND USE) SEBAGAI PENGGERAK KAPAL PANDU Firmansyah Syukron; Shah Muhammad; Santoso Emie
Proceedings Conference on Marine Engineering and its Application Vol 1 No 1 (2018): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v1i1.713

Abstract

Based on the operating data Pelindo III Surabaya province in 2017 there were 9,120 ships entering the port, indicating the total of ship visits in the port of tanjung perak surabaya has density. But, the reality of these conditions can not be separated from the lack of facilities and infrastructure on pilot boat. One of the factors is the age of the pilot engine which operates continuously so it needs to be replaced new engine. As a solution to improve the performance of pilot engines is to use truck diesel engine as the prime mover. References in using truck diesel engine as the prime mover are the rules & guidelines from BKI with conditions on the ship have horsepower under 500 hp. This final project aims to analyze the technical study of the use of truck diesel engine that includes how much power the engine, size dimension of engine, the supporting system of the engine, total weight of the engine and calculation of economic costs as needed. Stage of the planning process is calculation of the power engine, selection of the engine that will be used, drawing of the supporting system, calculation of cost. Results of this study show that technical point the use of a truck diesel engine as a prime mover on pilot boat still feasible with engine power of 222 hp, dimensions of the engine in accordance with the foundation, adjustment of support system, weight of engine equal to 818 kg and economical value of benefit cost ratio equal to 1.99 so that truck engine feasible to be used.
Co-Authors Burniadi Moballa Firmansyah Syukron Haidar Ali Yafie M Santoso, Emie