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전과정평가에 의한 복합소재 선체구조 경량화 효과의 환경영향 분석

Environmental Impact Evaluation on Lightweight Structure Design of a Composite Ship by LCA (Life Cycle Assessment)

Journal of the Korean Society for Precision Engineering 2019;36(9):875-881.
Published online: September 1, 2019

1 목포해양대학교 조선해양공학과

2 목포해양대학교 대학원 해양시스템공학과

1 Department of Naval Architecture and Ocean Engineering, Mokpo National Maritime University

2 Department of Ocean System Engineering, Graduate School, Mokpo National Maritime University

#E-mail: jeongsookhyun@gmail.com, TEL: +82-61-240-7238, FAX: +82-61-240-7301
• Received: February 26, 2019   • Revised: April 18, 2019   • Accepted: April 30, 2019

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Environmental Impact Evaluation on Lightweight Structure Design of a Composite Ship by LCA (Life Cycle Assessment)
J. Korean Soc. Precis. Eng.. 2019;36(9):875-881.   Published online September 1, 2019
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Environmental Impact Evaluation on Lightweight Structure Design of a Composite Ship by LCA (Life Cycle Assessment)
J. Korean Soc. Precis. Eng.. 2019;36(9):875-881.   Published online September 1, 2019
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Environmental Impact Evaluation on Lightweight Structure Design of a Composite Ship by LCA (Life Cycle Assessment)
Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Optimum GC (Glass Content) by structure types
Fig. 2 Longitudinal strength estimation of MMU-G52
Fig. 3 Lightweight effect analysis by ship structures
Fig. 4 Weight variation with composite materials light-eight design
Fig. 5 Life cycle assessment procedure17-21 of case study
Fig. 6 Required horsepower estimation for lightweight design
Fig. 7 Fuel consumption of Volvo D6-330
Fig. 8 Environmental impact comparison of original and lightweight design in production phase
Fig. 9 Environmental impact comparison of original and lightweight design in use phase
Fig. 10 Variation for global warming category indicator with light-weighting for production phase
Fig. 11 Variation for ozone layer depletion category indicator with light-weighting for production phase
Fig. 12 Variation for global warming category indicator with light-weighting for use phase
Fig. 13 Variation for ozone layer depletion with light-weighting for use phase
Environmental Impact Evaluation on Lightweight Structure Design of a Composite Ship by LCA (Life Cycle Assessment)

Principle dimensions of MMU-G52

MMU-G52
Item Value Unit
LH 15.90 m
L 13.15 m
BMax 4.64 m
BWL 4.29 m
D 2.50 m
T 0.95 m
Δ 25.47 ton
CB 0.46

Composite materials of MMU-G52

Item Value Unit
Fabric Fiber material E-Glass
Density 2.56 g/cm3
Fabric type Chopped strand mat
Unit weight 450 g/m2
Resin Type Polyester resin
Density 1.2 g/cm3
Core Type End grain balsa
Density 104 kg/m3

Fuel consumption estimation

Displacement
(kg)
Draft
(m)
HP Fuel consumption
per hour (L/h)
Original case 25,480.00 0.945 449.25 102.33
Light weight case 24,767.28 0.935 433.20 98.43

Total fuel consumption for lifecycle

Fuel consumption
per hour (L/h)
Using time
(hour)
Fuel
consumption (L)
Original case 102.33 5,200 532,116.60
Light weight case 98.43 5,200 435,060.60

Environmental assessment in production phase

Impact category Original case Lightweight case Unit
Global warming 27,342.80 20,163.05 kg CO2 eq
Ozone layer depletion 0.1200 0.0687 kg CFC11 eq

Environmental impact analysis by composite materials and fuel oil

Impact category Original case Lightweight case Unit
Global warming 254,941.91 245,225.57 kg CO2 eq
Ozone layer depletion 0.4090 0.3940 kg CFC11 eq
Table 1 Principle dimensions of MMU-G52
Table 2 Composite materials of MMU-G52
Table 3 Fuel consumption estimation
Table 4 Total fuel consumption for lifecycle
Table 5 Environmental assessment in production phase
Table 6 Environmental impact analysis by composite materials and fuel oil