Blar i NTNU Open på forfatter "Lim, Youngsub"
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Economic Analysis of a Hydrogen Liquefaction Process Based on Techno-Economic and Energy Optimization
Son, Heechang; Austbø, Bjørn; Gundersen, Truls; Hwang, Jihyun; Lim, Youngsub (Peer reviewed; Journal article, 2022)Efforts to be eco-friendly are becoming essential, and hydrogen is attracting attention as an eco-friendly fuel. As the hydrogen demand increases, the interest in liquid hydrogen is increasing because it is safer and more ... -
A feasibility study of HFO refrigerants for onboard BOG liquefaction processes
Yu, Taejong; Kim, Donghoi; Gundersen, Truls; Lim, Youngsub (Peer reviewed; Journal article, 2023)As the global demand for natural gas continues to increase, the production of liquefied natural gas (LNG) and the demand for LNG carriers are also on the rise. Following the advent of LNG propulsion engines, there has been ... -
Process design and economic optimization of boil-off-gas re-liquefaction systems for LNG carriers
Kim, Donghoi; Hwang, Chulmin; Gundersen, Truls; Lim, Youngsub (Peer reviewed; Journal article, 2019)Recent LNG carriers are equipped with high pressure gas injection engines. However, there has been a lack of research on liquefaction processes for boil-off gas (BOG) on LNG ships driven by high pressure fuel. Thus, this ... -
The study on feasibility of HFO refrigerants in BOG re-liquefaction process
Taejong, Yu; Kim, Donghoi; Gundersen, Truls; Lim, Youngsub (Peer reviewed; Journal article, 2022)As regulation of ship emission established, using liquefied natural gas (LNG) as ship fuel is one of the method to reduce ship emission. For LNG carrier, boil-off gas (BOG) generated from the storage tank can be used as ... -
Techno-economic versus energy optimization of natural gas liquefaction processes with different heat exchanger technologies
Son, Heechang; Austbø, Bjørn; Gundersen, Truls; Hwang, Jihyun; Lim, Youngsub (Peer reviewed; Journal article, 2022)The energy intensity of the natural gas liquefaction process in LNG value chains is considerable, and therefore a number of energy optimization studies have been conducted to obtain optimal operating conditions and maximize ...