"Life Cycle Cost of Maintaining the Effectiveness of a Ship’s Structure And Environmental Impact Of Ship Design Parameters: An Update"

2009 ◽  
Author(s):  
G A Gratsos ◽  
◽  
H N Psaraftis ◽  
P Zachariadis ◽  
◽  
...  
Keyword(s):  
Life Cycle ◽  
Environmental Impact ◽  
Life Cycle Cost ◽  
Ship Design ◽  
Design Parameters

scholarly journals Life Cycle Assessment dan Life Cycle Cost untuk Serat Kenaf

2020 ◽  
Vol 9 (3) ◽  
pp. 213-224
Author(s):  
Desrina Yusi Irawati ◽  
Melati Kurniawati
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Life Cycle Cost ◽  
Impact Category ◽  
Kenaf Fiber ◽  
A Value ◽  
Treatment Stage ◽  
The Impact

Kenaf fiber from the kenaf plant is the excellent raw material for industry because of the various diversified products it produces. To develop sustainable kenaf fiber, information is needed on the strengths and weaknesses of kenaf cultivation systems with respect to productivity and environmental impact. Therefore, a comprehensive environmental and economic impact assessment was conducted from cultivating kenaf to kenaf fiber. The environmental impact assessment uses the Life Cycle Assessment (LCA) method and economic calculations from the life cycle of kenaf to kenaf fiber to collectors use the Life Cycle Cost (LCC) method. The calculation of environmental impacts is in accordance with the stages of ISO 14040, using a single score assessment. The LCA results show that the treatment stage is the highest contributor of the three groups of impact categories. The highest to the lowest in the impact category group that was influenced by the treatment stage were resources with a value of 21.4 mPt, human health with a value of 8.76 mPt, and ecosystem quality with a value of 1.91 mPt. The cost identified through the LCC is Rp. 6,088,468,333, NVP and B/Cnet are positive. The results of the sensitivity analysis if there is a reduction in production> 6%, the business is still profitable and can be run.

scholarly journals Natural Dyes Product Design Using Green Quality Function Deployment II Method To Support Batik Sustainable Production

2018 ◽  
Vol 73 ◽  
pp. 04014
Author(s):  
Dyah Ika Rinawati ◽  
Diana Puspita Sari ◽  
Darminto Pujotomo ◽  
Puji Handayani Kasih
Keyword(s):  
Life Cycle ◽  
Environmental Impact ◽  
Life Cycle Cost ◽  
Quality Function Deployment ◽  
Natural Dyes ◽  
Morinda Citrifolia ◽  
Synthetic Dyes ◽  
Quality Function ◽  
The Matrix ◽  
Voice Of Customer

Using synthetic dyes causes bad impact on the environment. But using natural dyes has several problems such as fade, slight colour variations and takes longer time. In order to solve that problems, it is needed to develop instant natural dyes. This study aims to design instant natural dyes to fulfill needs of batik artisans that having minimal environmental impact as well as having minimal cost. This study use green quality function deployment II method. This study involve voice of customer identification, calculation gap, the determination of characteristic of technical, making the house of quality (HOQ), life cycle assessment (formulation of green house & green the matrix), life cycle cost (formulation of cost house, the preparation of cost the matrix) and concept comparison house (CCH). Based on voice of customer, natural dyes that will be developed is red colour. Red natural dyes extracted from root of Morinda citrifolia and Ceriops candolleana. In this research, there are two alternatives of natural dyes namely powders and liquid natural dyes. The result of this study is powder natural dyes selected because of lower environmental impact and user operational cost.

Designing sustainable footbridges: comparing steel, concrete and FRP.

2019 ◽  
Author(s):  
Liesbeth Tromp ◽  
Kees Van Ijselmuijden ◽  
Jorrit Zuidema
Keyword(s):  
Life Cycle ◽  
Environmental Impact ◽  
Design Parameters ◽  
Comparison Study ◽  
Industry Association ◽  
The Public ◽  
Reinforced Polymer ◽  
Ecoinvent Database ◽  
Design Property ◽  
Fibre Reinforced Polymer

<p>More and more clients and the public are asking for sustainable and circular solutions for infrastructure. Many opinions and often prejudice exist on the sustainability of each material. However, sustainability is just as much a design property as a material property. To illustrate how choices made by the designer affect the environmental impact of the structure, this study compares solutions in steel, concrete and Fibre Reinforced Polymer (FRP) for footbridges of 15m and 25m span as they exist today. Boundary conditions have been set in advance and the designs have been prepared to the same level of depth by senior engineers with comparable expertise in the respective materials. The concepts have been compared on CO₂-emissions over the life cycle, including maintenance. End-of-life (EoL) scenarios are described qualitatively but it is debated how to include these in the CO₂-emissions, as in a 100 years’ time technologies for recycling will be substantially different from today’s. Including the EoL in this comparison study therefore means that a uncertain parameter is made part of the equation. Use has been made of the EcoInvent database and the EuCIA Eco Impact Calculator, an environmental impact tool developed by the FRP industry association using the latest data available on FRP. This paper identifies the challenges in the assessment of sustainability of the designs, the relevance of certain design parameters and discusses how to deal with future EoL aspects in today’s assessment.</p>

Evaluation of Energy, Environmental, and Economic Characteristics of Fuel Cell Combined Heat and Power Systems for Residential Applications

2003 ◽  
Vol 125 (3) ◽  
pp. 208-220 ◽  
Author(s):  
M. Burak Gunes ◽  
Michael W. Ellis
Keyword(s):  
Life Cycle ◽  
Fuel Cell ◽  
Thermal Energy ◽  
Life Cycle Cost ◽  
Energy Use ◽  
Combined Heat And Power ◽  
Environmental Benefits ◽  
Design Parameters ◽  
Single Family ◽  
Chp System

Residential combined heat and power (CHP) systems using fuel cell technology can provide both electricity and heat and can substantially reduce the energy and environmental impact associated with residential applications. The energy, environmental, and economic characteristics of fuel cell CHP systems are investigated for single-family residential applications. Hourly energy use profiles for electricity and thermal energy are determined for typical residential applications. A mathematical model of a residential fuel cell based CHP system is developed. The CHP system incorporates a fuel cell system to supply electricity and thermal energy, a vapor compression heat pump to provide cooling in the summer and heating in the winter, and a thermal storage tank to help match the available thermal energy to the thermal energy needs. The performance of the system is evaluated for different climates. Results from the study include an evaluation of the major design parameters of the system, load duration curves, an evaluation of the effect of climate on energy use characteristics, an assessment of the reduction in emissions, and a comparison of the life cycle cost of the fuel cell based CHP system to the life cycle costs of conventional residential energy systems. The results suggest that the fuel cell CHP system provides substantial energy and environmental benefits but that the cost of the fuel cell sub-system must be reduced to roughly $500/kWe before the system can be economically justified.

scholarly journals Integrating Environmental Impact and Ecosystem Services in the Process of Land Resource Capitalization—A Case Study of Land Transfer in Fuping, Hebei

2021 ◽  
Vol 13 (5) ◽  
pp. 2837
Author(s):  
Weiguo Fan ◽  
Nan Chen ◽  
Wei Yao ◽  
Mengmeng Meng ◽  
Xuechao Wang
Keyword(s):  
Life Cycle ◽  
Ecosystem Services ◽  
Environmental Impact ◽  
Life Cycle Cost ◽  
Environmental Indicators ◽  
Land Resource ◽  
Value Evaluation ◽  
Whole Process ◽  
Land Transfer ◽  
Management Concept

The contradiction between human and land has always been a problem in the process of development and utilization of land resources. Under such circumstances, relevant government agencies put forward the management concept of land resource capitalization. As an effective policy to implement the conception of land resource capitalization, land transfer is of great significance to reforming rural land systems and liberating productivity in poor areas of Tai-hang Mountain in Hebei. However, how to integrate environmental impact and value evaluation of ecosystem services of land transfer in the process of resource capitalization deserves our attention. This paper takes the land transfer of Fuping, Hebei in Tai-hang Mountain as an example, combined with life cycle assessment (LCA), life cycle cost assessment (LCC), and the methods of value evaluation of ecosystem services to quantify the changes of environmental loads, economic costs, and ecosystem services in the whole process and different stages of land resource capitalization. Moreover, through the sensitivity analysis of key environmental indicators, the possibility of restricting environmental costs is explored. This paper studies land transfer from the direction of the cross-discipline and provides a new idea for land resource management.

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