Study on the fabrication of a two-phase flow waste heat recovery unit for Organic Rankine Cycle in marine applications

Dae Jung Hwang, Tae Woo Lim, Jae Hoon Jee, Eun Shin Bang, Cheol Oh

Unlike conventional heat exchangers, Waste Heat Recovery Units (WHRU) and condensers for Organic Rankine Cycle (ORC) power generation undergo phase changes. WHU...

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DOI: https://doi.org/10.5916/jamet.2023.47.4.154

Fuel-related emission estimation from the navigation profile of the ROKN combat vessel

Hyun Min Baek, Hyung Min Lee

While the Departments of Defense are not obliged to reduce its emissions, according to global emission reduction efforts, some countries are changing this trend...

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DOI: https://doi.org/10.5916/jamet.2023.47.4.162

Performance analysis in water-gas shift reactor for hydrogen yield improvement

Da-Hye Hwang, Yong-Seok Choi, Tae-Woo Lim

This study aimed to produce hydrogen using unused natural gas generated from the fuel storage tank of a liquefied natural gas-powered ship. As natural gas and s...

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DOI: https://doi.org/10.5916/jamet.2023.47.4.168

Anti-corrosion and wear performance of Al-Si coating deposited by wire arc spray for marine applications

Minhye Kang, Hansol Kwon, Eungsun Byon, Eunkyung Lee

Pure Al, Al-6Si, and Al-12Si coatings were deposited on HSLA-100 low-carbon steel substrates using wire arc spraying. The corrosion and wear behaviors of the Al...

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DOI: https://doi.org/10.5916/jamet.2023.47.4.175

A study on carbon dioxide emissions reduction in marine diesel engines using a chemical carbon absorber

Kyung-Seok Ko, Yeong-Gyun An, Yung-Deug Son

The shipping industry is responsible for a considerable portion of global carbon dioxide (CO) emissions, and reducing these emissions is crucial to mitigate the...

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DOI: https://doi.org/10.5916/jamet.2023.47.4.187

Effect of grain size on residual stress in AlSi₁₀MnMg alloy

Minjeong Jeon, Eunkyung Lee

The effect of varying the grain size on the residual stress in AlSiMnMg alloys prepared at various cooling rates was examined. The specimens with different init...

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DOI: https://doi.org/10.5916/jamet.2023.47.4.195

Finite element analysis of multi-pass dry wire drawing process of steel cord for tire reinforcement considering Al₂O₃ inclusion

In-Kyu Lee, Sang-Kon Lee, Kyung-Hun Lee

This study aimed to evaluate the effect of non-metallic inclusions on ductile damage during the multi-pass dry wire drawing process for manufacturing steel cord...

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DOI: https://doi.org/10.5916/jamet.2023.47.4.202

Analysis of energy consumption on deferred transmission of LoRaWAN down-link frame for IoT in a ship

Yang-Ick Joo

As the data-driven management of ships is required, the demand for Internet of Things (IoT) technology to acquire and stably exchange in-ship data is increasing...

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DOI: https://doi.org/10.5916/jamet.2023.47.4.208