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eng The development of sound absorber material from green composites: The effect of volume fraction on noise reduction and thermal conductivity performances for ship engine room application
Manik, Parlindungan; Tuswan, Tuswan; Musarofah, Siti; Chrismianto, Deddy; Samuel, Samuel; Prabowo, Aditya Rio
Pomorstvo Vol. 36, No. 2, 2022
One of the most critical parts of ship structure is the sound absorber on the ship structure, particularly in the ship’s engine room, which is a dominant contributor to ship noise. The development of sound absorber materials from natural fibre composite is becoming more varied as material technology develops. This study investigated the sound absorber and thermal conductivity performances of developed sound absorber material. This study used the two-microphone impedance tube method to compare the effectiveness of composite sound absorbers made...
Hrčak ID: 287503
eng Representative application of LNG-fuelled ships: a critical overview on potential GHG emission reductions and economic benefits
Tuswan, Tuswan; Sari, Dian Purnama; Muttaqie, Teguh; Prabowo, Aditya Rio; Soetardjo, Meitha; Murwantono, Totok Tri Putrastyo; Utina, Ridwan; Yuniati, Yuniati
Brodogradnja Vol. 74, No. 1, 2023
The shipping industry is the primary and most significant mode of international cargo transportation. The ship must comply with strict rules regarding reducing greenhouse gas (GHG) emissions as a dominant transportation mode. Liquified Natural Gas (LNG) is the primary alternative fuel option for several shipping companies. In essence, many studies recommend LNG as a transitional and alternative fuel because its emission characteristics are cleaner than other fossil fuels. Several previous investigations have been carried out to develop an actio...
Hrčak ID: 289563
eng Influence of the canal width and depth on the resistance of 750 DWT Perintis ship using CFD simulation
Hadi, Eko Sasmito; Tuswan, Tuswan; Azizah, Ghina; Ali, Baharuddin; Samuel, Samuel; Hakim, Muhammad Luqman; Hadi, Muhammad Raaflie Caesar Putra; Iqbal, Muhammad; Sari, Dian Purnama; Satrio, Dendy
Brodogradnja Vol. 74, No. 1, 2023
Investigation of hydrodynamic interaction between the vessel and the seabed when entering shallow water is considered one of the most critical considerations of inland waterway transport. There are many investigations into the behavior of ships in restricted waters, such as ships traveling in different forms of canal cross-sections. The present study aims to evaluate the hydrodynamic interaction of the 750 DWT Perintis Ship moving through the different canal types to determine the relative effects of limiting the width and depth cross section o...
Hrčak ID: 292392
eng Identification of Damage Size Effect of Natural Frequency on Sandwich Material using Free Vibration Analysis
Ariesta, Rizky Chandra; Zubaydi, Achmad; Ismail, Abdi; Tuswan, Tuswan
NAŠE MORE Vol. 69, No. 1, 2022
One of the most innovative developments in the field of advanced materials is sandwich materials. Sandwich material applications need standard requirements to be applied to marine structures, especially on ship construction. Sandwich material research is conducted on a laboratory scale to obtain the appropriate material composition in its development. In the process of developing this material, the material can be damaged. Most damage occurs in the core material, which results in difficulties in the identification process. This study compares d...
Hrčak ID: 272849
eng Experimental Study on the Effect of Arm Design on the Performance of a Flap-Float Horizontal Ocean Wave Energy Converter
Madi, Madi; Mukhtasor, Mukhtasor; Walujo Prastianto, Rudi; Tuswan, Tuswan; Ismail, Abdi
NAŠE MORE Vol. 69, No. 2, 2022
Assessments on the configuration design of the ocean wave energy converter are fundamental to obtaining optimum performance under different environmental scenarios. In this study, the physical experimental test was conducted to investigate the suitable configuration of the proposed design of the Flap-Float Horizontal (FFH) energy converter device. A 1:20 scaled model was investigated in the laboratory tank subjected to normal wave conditions. Several parameters, including the arm length and angle of the buoy, were analyzed in different wave ste...
Hrčak ID: 278906