scholarly journals An Eco-Efficiency Assessment of Bio-Based Diesel Substitutes: A Case Study in Thailand

2021 ◽  
Vol 13 (2) ◽  
pp. 576
Author(s):  
Napapat Permpool ◽  
Awais Mahmood ◽  
Hafiz Usman Ghani ◽  
Shabbir H. Gheewala
Keyword(s):  
Life Cycle ◽  
Human Health ◽  
Resource Availability ◽  
Acid Methyl Ester ◽  
Economic Indicator ◽  
Life Cycle Costing ◽  
Ecosystem Quality ◽  
Efficiency Assessment ◽  
Acid Methyl

The development of new bio-based diesel substitutes can improve their compatibility with diesel engines. Nevertheless, for actual implementation, their environmental and economic performance needs to be studied. This study quantified the eco-efficiency of three bio-based diesels, viz., fatty acid methyl ester (FAME), partially hydrogenated FAME (H-FAME), and bio-hydrogenated diesel (BHD), to address the perspective of producers as well as policymakers for implementing the advanced diesel alternatives. The eco-efficiency was assessed as a ratio of life cycle costing as the economic indicator and three different environmental damages—human health, ecosystem quality, and resource availability. The eco-efficiency of FAME was the most favorable among all the potential substitutes with regard to human health and ecosystem quality, but the least favorable for resource availability impact. Even though BHD was beneficial in terms of life cycle costing, it was the least preferable when considering human health and ecosystem quality, though it performed the best for resource availability. H-FAME was also promising, in line with FAME. It is suggested that the technologies for BHD production should be improved, especially the catalyst used, which contributed greatly to environmental impacts and costs.

scholarly journals Life Cycle Costing: Understanding How It Is Practised and Its Relationship to Life Cycle Management—A Case Study

2020 ◽  
Vol 12 (8) ◽  
pp. 3252 ◽  
Author(s):  
Marianna Lena Kambanou
Keyword(s):  
Life Cycle ◽  
Life Cycle Management ◽  
Life Cycle Costing ◽  
Methodological Choices ◽  
Manufacturing Company

Despite the existence of many life cycle costing (LCC) methods, LCC is not widely adopted and LCC methods are usually further tailored by practitioners. Moreover, little is known about how practising LCC improves life cycle management (LCM) especially if LCM is considered emergent and constantly developing. In a manufacturing company, LCC is prescriptively introduced to improve LCM. In the first part, this study describes how various methodological choices and other aspects of practising LCC were the outcome of contestation and conformity with extant practices and not only the best way to fulfil the LCC’s objective. This contestation can even influence if LCC is adopted. In the second part of the research, the implications of practising LCC on LCM are explored. LCC is found to positively propel LCM in many ways e.g., by spreading the life cycle idea, but may lead to a narrower understanding of the term life cycle resulting in the sustainability focus of LCM being overridden. The article also discusses how the findings can be taken into consideration when researchers develop LCC methods and when industry practises LCC.

scholarly journals Sensitivity Analysis of Fuzzy Activity-Based Life Cycle Costing

2018 ◽  
Vol 225 ◽  
pp. 05002
Author(s):  
Freselam Mulubrhan ◽  
Ainul Akmar Mokhtar ◽  
Masdi Muhammad
Keyword(s):  
Sensitivity Analysis ◽  
Life Cycle ◽  
Interest Rate ◽  
Life Cycle Costing ◽  
High Impact ◽  
Final Output ◽  
Left And Right ◽  
The Interest Rate ◽  
Operation Cost

A sensitivity analysis is typically conducted to identify how sensitive the output is to changes in the input. In this paper, the use of sensitivity analysis in the fuzzy activity based life cycle costing (LCC) is shown. LCC is the most frequently used economic model for decision making that considers all costs in the life of a system or equipment. The sensitivity analysis is done by varying the interest rate and time 15% and 45%, respectively, to the left and right, and varying 25% of the maintenance and operation cost. It is found that the operation cost and the interest rate give a high impact on the final output of the LCC. A case study of pumps is used in this study.

scholarly journals Life Cycle Costing in Sustainability Assessment—A Case Study of Remanufactured Alternators

2011 ◽  
Vol 3 (11) ◽  
pp. 2268-2288 ◽  
Author(s):  
Erwin M. Schau ◽  
Marzia Traverso ◽  
Annekatrin Lehmann ◽  
Matthias Finkbeiner
Keyword(s):  
Life Cycle ◽  
Sustainability Assessment ◽  
Life Cycle Costing

scholarly journals Life Cycle Costing and Eco-Efficiency Assessment of Fuel Production by Coprocessing Biomass in Crude Oil Refineries

Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4664
Author(s):  
Pedro L. Cruz ◽  
Diego Iribarren ◽  
Javier Dufour
Keyword(s):  
Life Cycle ◽  
Crude Oil ◽  
Raw Materials ◽  
Efficiency Score ◽  
Life Cycle Costing ◽  
Attractive Alternative ◽  
Life Cycle Approach ◽  
Long Distance ◽  
Oil Refineries ◽  
Efficiency Assessment

Biobased liquid fuels are becoming an attractive alternative to replace, totally or partially, fossil ones in the medium term, mainly in aviation and long-distance transportation. In this regard, coprocessing biomass-derived feedstocks in conventional oil refineries might facilitate the transition from the current fossil-based transport to a biobased one. This article addresses the economic and environmental feasibility of such a coprocessing strategy. The biomass-based feedstocks considered include bio-oil and char from the fast pyrolysis of lignocellulosic biomass, which are coprocessed in fluid catalytic cracking (FCC), hydrocracking, and/or cogasification units. The assessment was based on the standardized concept of eco-efficiency, which relates the environmental and economic performances of a system following a life-cycle approach. Data from a complete simulation of the refinery process, from raw materials to products, were used to perform a life cycle costing and eco-efficiency assessment of alternative configurations of the coprocessing strategy, which were benchmarked against the conventional fossil refinery system. Among other relevant results, the eco-efficiency related to the system’s carbon footprint was found to improve when considering coprocessing in the hydrocracking unit, while coprocessing in FCC generally worsens the eco-efficiency score. Overall, it is concluded that coprocessing biomass-based feedstock in conventional crude oil refineries could be an eco-efficient energy solution, which requires a careful choice of the units where biofeedstock is fed.

Material life cycle costing of buildings: A case study

2018 ◽  
Author(s):  
Vojtěch Biolek ◽  
Tomáš Hanák
Keyword(s):  
Life Cycle ◽  
Life Cycle Costing ◽  
Material Life

scholarly journals Incorporating an Asset Health Index into a Life Cycle Costing: A Proposition and Study Case

Mathematics ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1787
Author(s):  
Orlando Durán ◽  
Fabián Orellana ◽  
Pablo Perez ◽  
Tamara Hidalgo
Keyword(s):  
Life Cycle ◽  
Life Cycle Costing ◽  
Life Cycle Costs ◽  
Health Index ◽  
Central Chile ◽  
Proposal A ◽  
Sensitivity Studies ◽  
Useful Life ◽  
Physical Assets

A physical asset’s health is the consequence of a series of factors, ranging from the characteristics of the location where it operates to the care it is submitted to. These characteristics can influence the durability or the horizon of the useful life of any equipment, as well as determine its operational performance and its failure rates in the future. Therefore, the assessment of the influence of asset health on Life Cycle Costs is a compelling need. This paper proposes the incorporation of a factor that reflects the projected behavior of an asset’s health index into its corresponding Life Cycle Costing (LCC) model. This allows cost estimates to be made more realistic and LCC models to be operated more accurately. As a way of validating this proposal, a case study is shown. The methodology proposed in this case study was applied in a real case, considering an LNG facility located in central Chile. In addition, sensitivity studies and comparisons with the results obtained by a traditional Life Cycle Costing model are included. The results show the usefulness of incorporating asset health aspects into the Life Cycle Costing of physical assets.

scholarly journals Modeling human health characterization factors for indoor nanomaterial emissions in life cycle assessment: a case-study of titanium dioxide

2017 ◽  
Vol 4 (8) ◽  
pp. 1705-1721 ◽  
Author(s):  
Michael P. Tsang ◽  
Dingsheng Li ◽  
Kendra L. Garner ◽  
Arturo A. Keller ◽  
Sangwon Suh ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Impact Assessment ◽  
Human Health ◽  
Life Cycle Impact Assessment ◽  
Assessment Model ◽  
Characterization Factors ◽  
Intake Fraction

A dynamic life cycle impact assessment model demonstrates a non-constant intake fraction of inhaled nano-TiO2 as total emissions changes.

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