scholarly journals What’s the Role Of Corn Ethanol Fuel in China: From the Life Cycle Cost View

2021 ◽  
Vol 701 (1) ◽  
pp. 012077
Author(s):  
Y M Sun ◽  
K H Chung
2015 ◽  
Vol 74 (2) ◽  
Author(s):  
Ooi Chu Hui ◽  
Abdul Hakim Mohammed

This paper highlights the basic process of developing a life cycle cost model and the role of cost breakdown structure for water distribution pipeline networks. A life cycle cost is the total cost of owning an asset during its predicted useful life, while a cost breakdown structure illustrates all the costs emerged in each single phase of the asset’s life cycle cost. Its purpose is to identify, define and organize all cost elements to be taken into account in a life cycle cost. Each cost element included in developing a cost breakdown structure will also be discussed in this paper.


2013 ◽  
Vol 117 (1196) ◽  
pp. 1053-1070
Author(s):  
A. Gad-Briggs ◽  
A. Haslam ◽  
P. Laskaridis

Abstract New aircraft require years of development from concept to realisation and can be prone to delays. Consequently, military operators take existing fleets and operate them in a different role. The objective of this study is to examine the effect of operating a typical low bypass military fast jet engine, originally designed for a European theatre, in a hot and harsh climate. The specific purpose is to determine the effect on the high-pressure turbine blade life and the life- cycle cost of the engine. A mission profile and respective performance conditions were analysed and modelled using an in-house performance tool. The flow conditions were simulated using ANSYS® FLUENT. A conjugated heat transfer solution was adopted to determine the blade metal temperature. The blade was modelled physically in 3D using SIMULIA® ABAQUS FEA software. The stresses were derived and used to calculate the temperature coupled low cycle fatigue and creep life. A deterioration case was also studied to evaluate the effect of sand and dust ingestion. There was a significant life reduction of approximately 50% due to creep. The reduction in life was inversely proportional to the life cycle cost of the engine depending on the operating conditions. The results were compared with similar engines and summarised in the context of airworthiness regulations and component integrity.


2021 ◽  
Vol 11 (3) ◽  
pp. 437-451
Author(s):  
Dirar Abdulhameed Altoum Alotaibi ◽  
Salah Mahdi Jawad Al-Kawaz ◽  
Basem Abdul-Hussein Al-Qassab

The purpose of this study is to direct interest in using the sound methodology in cost management and to choose a more effective approach to managing costs from a series of alternatives in order to obtain more accurate data on the cost of the product. Competition in the market, Clarifying the role of the time-based product life cycle costing technique in providing integrated information on resources and their costs and for each stage of the product life cycle, which would contribute to managing costs throughout the product life cycle. To achieve this goal, the time-based product life cycle costing technique was applied on data obtained from the laboratory records, the research sample, as well as the field experience. The research reached several conclusions, the most important of which is that the failure of traditional cost systems to meet the requirements and objectives of management as they are no longer able to provide accurate data that help the administration in making decisions as a result of changes and developments in the business environment, most notably the intense competition, which resulted in the emergence of modern techniques in the field of management Cost that is able to keep pace with these changes and developments. The most important of which is the time-based product life-cycle cost technique.


1994 ◽  
Vol 11 (1) ◽  
pp. 47-56
Author(s):  
Virginia C. Day ◽  
Zachary F. Lansdowne ◽  
Richard A Moynihan ◽  
John A. Vitkevich

2011 ◽  
Vol 4 (5) ◽  
pp. 158-161 ◽  
Author(s):  
A. Morfonios A. Morfonios ◽  
◽  
D. Kaitelidou D. Kaitelidou ◽  
G. Filntisis G. Filntisis ◽  
G. Baltopoulos G. Baltopoulos ◽  
...  

Author(s):  
Petar Halachev ◽  
Victoria Radeva ◽  
Albena Nikiforova ◽  
Miglena Veneva

This report is dedicated to the role of the web site as an important tool for presenting business on the Internet. Classification of site types has been made in terms of their application in the business and the types of structures in their construction. The Models of the Life Cycle for designing business websites are analyzed and are outlined their strengths and weaknesses. The stages in the design, construction, commissioning, and maintenance of a business website are distinguished and the activities and requirements of each stage are specified.


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