Safety Enhancement of Portable Oil Spill Skimmer (POSS) via Computational Fluid Dynamics for Liquid Sloshing Analysis
DOI:
https://doi.org/10.31436/iiumej.v26i3.3253Keywords:
liquid sloshing, portable oil spill skimmer, baffles, Oil Spill Response and RecoveryAbstract
The Portable Oil Spill Skimmer (POSS) was designed and developed due to several disadvantages of the current methods of Oil Spill Response and Recovery (OSRR). The POSS was designed as a complementary method to aid the OSRR tasks. However, during the POSS maneuverability testing, the POSS experiences instability when moving in different directions. The imbalance occurs when there is the presence of oil in the oil tank. Based on the literature study, the liquid sloshing effect was the reason why the POSS experiences instability. Thus, this research aims to analyse the impact of liquid sloshing in an oil tank and the implementation of baffles to reduce the effect. The analysis was conducted using SolidWorks Flow Simulation to simulate the liquid sloshing in the oil tank. The simulation was conducted in two situations, with and without baffles, to compare the results. According to the obtained results, with the implementation of 3 baffles, the sloshing effect was reduced to 392 N of torque force from 1195.43 N without baffles. The reduction was significant as the sloshing effect cannot be eliminated, thus the torque force of 392 N was enough to minimise the stability issue of the POSS.
ABSTRAK: Penapis Tumpahan Minyak Mudah Alih (POSS) telah direka bentuk dan difabrikasi kerana terdapat beberapa kelemahan kaedah semasa iaitu Tindak Balas dan Pemulihan Tumpahan Minyak (OSRR). POSS direka bentuk sebagai kaedah pelengkap bagi membantu operasi OSRR. Walau bagaimanapun, semasa ujian kebolehgerakan POSS, ia mengalami ketidakstabilan gerakan arah berbeza. Ketidakseimbangan ini berlaku apabila terdapat minyak dalam tangki minyak. Berdasarkan kajian, POSS mengalami ketidakstabilan disebabkan oleh kesan percikan cecair (liquid sloshing). Oleh itu, kajian ini bertujuan bagi menganalisis kesan percikan minyak (oil sloshing) dalam tangki minyak dan mengkaji keberkesanan pelaksanaan penyekat dalaman (baffles) bagi mengurangkan kesan percikan. Analisis dijalankan dengan menggunakan Perisian Simulasi Aliran SolidWorks bagi mensimulasikan percikan cecair dalam tangki minyak. Simulasi dijalankan dalam dua keadaan, dengan dan tanpa penyekat dalaman bagi membandingkan keputusan. Dapatan kajian mendapati melalui pelaksanaan 3 penyekat dalaman (baffles), kesan percikan telah berjaya dikurangkan kepada 392 N daya kilas (torque force) berbanding 1195.43 N tanpa menggunakan penyekat dalaman. Pengurangan ini adalah ketara kerana kesan percikan tidak dapat dihapuskan sepenuhnya. Oleh itu, daya kilas 392 N adalah cukup bagi meminimumkan isu kestabilan POSS.
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