천연가스 운반선의 재액화 장치가 운항비용에 미치는 영향에 관한 연구: 연료비용 및 증발 가스 연소비용 관점에서

다국어 초록 (Multilingual Abstract)

Ship owners had pursued higher benefits by demanding the new design and construction of ships with higher operational efficiency. There was a necessity for shipyards to suggest a more economical design and advanced operation concept in order to meet the demands. Especially, since BOG combustion and activation of the re-liquefaction unit had to be taken into account in ship design in addition to fuel oil and gas consumption, the evaluation of the operating efficiency considering the technological trends was necessary. In this paper, it was aimed to study the design philosophy and operation strategy by considering the effect of fuel oil and gas consumption, BOG combustion, and activation of the re-liquefaction unit on the operating cost for laden voyage according to ship speed, BOR, and activation of the re-liquefaction unit. For this purpose, the costs were acquired by conducting the sailing simulation of an LNGC based on a mathematical model including the maneuvering equations of motion. The design philosophy and operation strategy was reviewed in terms of the operating cost.

참고문헌 (Reference)

1 유영준, "쌍축 추진 LNG선의 단독 추진기 고장 상태에서의 조종성능에 대한 수치적 연구" 대한조선학회 54 (54): 204-214, 2017

2 Wärtisilä, "Wärtisilä 34DF product guide"

3 DSME, "Wind tunnel tests LNG Carrier 173K"

4 Ahn, J., "Strategy for selecting an optimal propulsion system of a liquefied hydrogen tankers" 42 : 5366-5380, 2017

5 Wiesmann, A., "Slow steaming – a viable long-term option?"

6 Young, I. R., "Seasonal variability of the global ocean wind and wave climate" 19 : 931-950, 1999

7 You, Y., "Prediction of the efficient speed of an LNGC with design condition from a direct cost evaluation considering the hydrodynamic characteristics and equipment operation" 168 : 23-40, 2018

8 You, Y., "Prediction of an actual RPM and engine power of an LNGC based on full-scale measurement data" 147 : 496-516, 2018

9 Kijima, K., "Prediction method of ship manoeuvrability in deep and shallow water" 311-319, 1990

10 Bialystocki, N., "On the estimation of ship’s fuel consumption and speed curve : A statistical approach" 1 : 157-166, 2016

11 MAN Diesel & Turbo, "MAN B&W G70ME-C9.5-GI-TII Project Guide Electronically Controlled Dual Fuel Two-stroke Engines Edition 1.0"

12 Degiuli, N., "Increase of Ship Fuel consumption due to the added resistance in Waves" 5 (5): 1-14, 2017

13 Schinas, O., "Feasibility and commercial considerations of LNG-fueled ships" 122 : 84-96, 2016

14 Fujii, J., "Experimental researchs on rudder performance(2)" 110 : 31-42, 1961

15 Fujii, J., "Experimental researches on rudder performance(3)" 111 : 51-58, 1962

16 Luo, S., "Evaluation of resistance increase and speed loss of a ship in wind and waves" 1 : 212-218, 2016

17 Kim, M., "Estimation of added resistance and ship speed loss in a sea way" 141 : 465-476, 2017

18 DSME, "Electric load analysis report of 173K LNG Carrier"

19 Youngjun You, "Development of a framework to estimate the sea margin of an LNGC considering the hydrodynamic characteristics and voyage" 대한조선학회 12 : 184-198, 2020

20 Ball, M. Basile, A., "Compendium of hydrogen energy – volume 4 : hydrogen use, safety and the hydrogen economy" Woodhead Publishing 2015

21 Behrendt, C., "Comparison of model test with ship sea trial results for a given vessel serie" 24 : 277-284, 1997

22 You, Y., "A study on the maneuverability of a twin-screw LNGC under machinery failure" 155 : 324-350, 2018

23 유영준, "3자유도 조종운동방정식을 이용한 실선성능 추정 방법에 관한 연구: 속도, 분당회전수, 또는 엔진동력을 기준으로" 대한조선학회 56 (56): 427-438, 2019