Life-Cycle Cost Assessment of Seismically Base-Isolated Large Tanks in LNG Plants

2013 ◽  
Author(s):  
Hao Wang ◽  
Dagen Weng
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Seismic Intensity ◽  
Damage Cost ◽  
Maximum Displacement ◽  
Earthquake Force ◽  
Lead Rubber Bearings ◽  
Rubber Bearings ◽  
The Cost ◽  
The Relationship

A new methodology is being introduced to address the life-cycle cost (LCC) of base-isolated large liquefied natural gas (LNG) tanks. The relationship between LCC and seismic fortification intensity is established to evaluate how much reduction of earthquake force can minimize the LCC. Each composition of LCC is analyzed including the initial cost, the isolators cost and the excepted damage cost. The isolators cost consists of the cost of lead rubber bearings and dampers. The cost of lead rubber bearings is proposed proportional to its volume and the cost of dampers is not only related to its maximum displacement but also to its tonnage. The concept of seismic intensity is being used to estimate the expected damage cost, greatly simplifying the calculation. Moreover, a tank in a LNG receiving terminal in China is employed as an example to assess its LCC in isolated and non-isolated situation respectively. The results show that the proposed method is efficient and the expected damage cost is enormously reduced because of the application of isolators, which leads to the reduction of the LCC of the tank.

Life-Cycle Cost Assessment of Seismically Base-Isolated Large Tanks in Liquefied Natural Gas Plants

2014 ◽  
Vol 137 (1) ◽  
Author(s):  
Hao Wang ◽  
Dagen Weng
Keyword(s):  
Life Cycle ◽  
Natural Gas ◽  
Life Cycle Cost ◽  
Seismic Intensity ◽  
Liquefied Natural Gas ◽  
Damage Cost ◽  
Maximum Displacement ◽  
Earthquake Force ◽  
Supplemental Dampers ◽  
The Cost

A new methodology is being introduced to address the life-cycle cost (LCC) of base-isolated large liquefied natural gas (LNG) tanks. The relationship between LCC and seismic fortification intensity was established to evaluate how much earthquake force being isolated can minimize LCC. Each composition of LCC was analyzed including the initial cost, the isolators' cost, and the excepted damage cost. The isolators' cost consists of the cost of laminated lead rubber bearings (LLRB) and supplemental dampers. The cost of LLRB was proposed proportional to its volume and the proposed cost of supplemental dampers was not only related to its maximum displacement but also to its tonnage. The concept of seismic intensity was being used to estimate the expected damage cost, greatly simplifying the calculation. Moreover, a tank in a LNG receiving terminal in China was employed as an example, the LCC of which was assessed in isolated and nonisolated situation, respectively. The results showed that the proposed method was efficient and the expected damage cost was enormously reduced because of the application of isolation, which leaded to the reduction of the LCC of the tank.

Life Cycle Cost Analysis for Substation

2014 ◽  
Vol 638-640 ◽  
pp. 2370-2376
Author(s):  
Yan Zheng ◽  
Di Su ◽  
Xu Wang ◽  
Yu Cai
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Maintenance Cost ◽  
Cost Estimating ◽  
Engineering Project ◽  
Construction Engineering ◽  
Engineering Project Management ◽  
The Cost ◽  
The Relationship ◽  
Cost Of Construction

Life Cycle Cost of Construction engineering project management is a combination of modern management theory—system theory, cybernetics and information theory combined with the construction project. In this paper, a model of substation life cycle cost is built comprehensively, by making a model for the cost estimating of substation design and construction cost. Meanwhile, the operation loss, operation maintenance cost are analyzed and calculated, the estimate of the retirement costs is carried on. On these basics, analyzes the relationship between the cost, then the numerical example is given ultimately. Eventually, optimal reliability and economical efficiency is achieved.

scholarly journals Optimal Renovation Strategies through Life-Cycle Analysis in a Pilot Building Located in a Mild Mediterranean Climate

2021 ◽  
Vol 11 (4) ◽  
pp. 1423
Author(s):  
José Manuel Salmerón Lissen ◽  
Cristina Isabel Jareño Escudero ◽  
Francisco José Sánchez de la Flor ◽  
Miriam Navarro Escudero ◽  
Theoni Karlessi ◽  
...  
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Mediterranean Climate ◽  
Building Envelope ◽  
Economic Life ◽  
Hot Water ◽  
Optimal Solutions ◽  
Building Stock ◽  
Existing Building ◽  
The Cost

The 2030 climate and energy framework includes EU-wide targets and policy objectives for the period 2021–2030 of (1) at least 55% cuts in greenhouse gas emissions (from 1990 levels); (2) at least 32% share for renewable energy; and (3) at least 32.5% improvement in energy efficiency. In this context, the methodology of the cost-optimal level from the life-cycle cost approach has been applied to calculate the cost of renovating the existing building stock in Europe. The aim of this research is to analyze a pilot building using the cost-optimal methodology to determine the renovation measures that lead to the lowest life-cycle cost during the estimated economic life of the building. The case under study is an apartment building located in a mild Mediterranean climate (Castellon, SP). A package of 12 optimal solutions has been obtained to show the importance of the choice of the elements and systems for renovating building envelopes and how energy and economic aspects influence this choice. Simulations have shown that these packages of optimal solutions (different configurations for the building envelope, thermal bridges, airtightness and ventilation, and domestic hot water production systems) can provide savings in the primary energy consumption of up to 60%.

Design for Product Variety: Key to Product Line Structuring

1995 ◽  
Author(s):  
Kosuke Ishii ◽  
Cheryl Juengel ◽  
C. Fritz Eubanks
Keyword(s):  
Supply Chain ◽  
Life Cycle ◽  
Manufacturing Process ◽  
Life Cycle Cost ◽  
Manufacturing System ◽  
Product Variety ◽  
Product Line ◽  
Customer Preference ◽  
The Cost ◽  
Structure Graph

Abstract This study develops a method to capture the broadest customer preference in a product line while minimizing the life-cycle cost of providing variety. The paper begins with an overview of product variety and its importance in overhead costs: supply chain, equipment and tooling, service, and recycling. After defining the product structure graph as a representation of variety, the paper introduces an approximate measure for the customer importance and life-cycle cost of product variety The cost measure utilizes the concept of late point identification which urges standardization early in the manufacturing process and differentiation at the end of the process. The variety importance-cost map allows engineers to identify cost drivers in the design of the product or the manufacturing system and seek improvements. The refrigerator door example illustrates the concept. On-going work seeks to validate and enhance the method with several companies from different industries.

A Study of Life Cycle Costing in the Perspectives of Research and Commercial Applications in the 21st Century

2007 ◽  
Author(s):  
Wai M. Cheung ◽  
Linda B. Newnes ◽  
Antony R. Mileham ◽  
Robert Marsh ◽  
John D. Lanham
Keyword(s):  
Life Cycle ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Academic Research ◽  
Life Cycle Costing ◽  
Electronic Products ◽  
Commercial Applications ◽  
The Uk ◽  
The Cost ◽  
Traditional Approaches

This paper presents a review of research in the area of life cycle costing and offers a critique of current commercial cost estimation systems. The focus of the review is on relevant academic research on life cycle cost from 2000 onwards. In addition to this a comparison of the current cost estimation systems is presented. Using the review findings and industrial investigations as a base, a set of mathematical representations for design and manufacturing costs and the introduction of the critical factors is proposed. These are considered in terms of the operational, maintenance and disposal costs to create a method for ascertaining the life cycle cost estimate for complex products. This is presented using as an exemplar, research currently being undertaken in the area of low volume and long life electronic products in the UK defence sector. The benefit of the method proposed is that it aims to avoid the inflexibility of traditional approaches which usually require historical and legacy data to support the cost estimation processes.

scholarly journals Engineered Resilient System Life Cycle Costing Model

2016 ◽  
Vol 4 (2) ◽  
pp. 149-155
Author(s):  
Allen Blash ◽  
William Butler ◽  
Lindy Clark ◽  
Kyle Fleming ◽  
LTC Jennifer Kasker
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Defense Spending ◽  
Analysis Tool ◽  
Defense Acquisition ◽  
Cost Estimating ◽  
Tracked Vehicles ◽  
Test And Evaluation ◽  
System Life ◽  
The Cost

In order to make the best use of the defense spending budget, it is critical that the Department of Defense (DoD) accurately predict the Research, Development, Test and Evaluation (RDT&E), Procurement, and Operation and Support (O&S) costs down to the third level of the Work Breakdown Structure for Major Defense Acquisition Project (MDAP) wheeled or tracked vehicles. This research utilizes historical data, extracted from government databases, to develop cost estimating relationships (CERs) that predict the life cycle cost of wheeled and tracked vehicles based on attributes. This research can also be leveraged for defense acquisition programs across the DoD portfolio. The model will be integrated into a tradespace analysis tool, ERS & CREATE-GV, which was developed by ERDC to predict the cost of each alternative created in the tradespace.

Integration of a Maintenance Management Model (MMM) Into an Asset Management Process

2022 ◽  
pp. 1-29
Author(s):  
Carlos A. Parra ◽  
Adolfo Crespo Márquez ◽  
Vicente González-Prida ◽  
Antonio Sola Rosique ◽  
Juan F. Gómez ◽  
...  
Keyword(s):  
Life Cycle ◽  
Continuous Improvement ◽  
Asset Management ◽  
Maintenance Management ◽  
Management Model ◽  
Management Process ◽  
Planning And Scheduling ◽  
The Cost ◽  
And Control ◽  
The Relationship

The chapter explains in detail the maintenance management model (MMM) taken as a reference for the development of the book. The chapter is based on the eight phases of the MMM. The first three blocks determine the effectiveness of the management; the following blocks assure the same efficiency and continuous improvement in the following way: Blocks 4 and 5 include actions for the planning and scheduling of maintenance, including, of course, the capacity of planning of department of maintenance. Blocks 6 and 7 are dedicated to the evaluation and control of the maintenance and the cost of assets throughout their life cycle. This chapter of introduction briefly summarizes the process and the reference frame necessary for the implementation of the MMM. This chapter also presents the relationship between the eight phases of the maintenance management model proposed and the general requirements of the asset management standard ISO 55000 to show how the gradual implementation of the MMM largely covers the requirements of the standard ISO 55000.

scholarly journals Economic Analysis for Setting Appropriate Repair Cycles on the Fixed Materials and Facilities in the Public Rental Housing

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Sung-Min Choi ◽  
Yeon-Sil Lee
Keyword(s):  
Life Cycle ◽  
Economic Analysis ◽  
Life Cycle Cost ◽  
Rental Housing ◽  
The Public ◽  
Public Rental Housing ◽  
Maintenance Cycle ◽  
Minimum Age ◽  
Optimal Maintenance ◽  
The Cost

Currently, repair and maintenance cycles that follow the completion of construction facilities lead to the necessitation of subsequent data on the analysis of study and plan for maintenance. As such, an index of evaluation was drafted and a plan of maintenance cycle was computed using the investigation data derived from surveying target housing units in permanent rental environmental conditions, with a minimum age of 20 years, and their maintenance history. Optimal maintenance and replacement methods were proposed based on this data. Economic analysis was conducted through the Risk-Weighted Life Cycle Cost (RWLCC) method in order to determine the cost analysis of maintenance life cycle methods used for repair. Current maintenance cycle methods that have been used for 20 years were also compared with alternative maintenance cycles.

Life Cycle Costing of Simulated vs Actual Equipment for Intermediate Maintenance Training

1978 ◽  
Vol 22 (1) ◽  
pp. 267-271
Author(s):  
F. Thomas Eggemeier ◽  
Gary A. Klein
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Initial Phase ◽  
Life Cycle Costing ◽  
Intermediate Level ◽  
Training Device ◽  
Major Purpose ◽  
Maintenance Costs ◽  
Actual Equipment ◽  
The Cost

Life cycle cost estimates of training equipment for F-16 Avionics Intermediate Station personnel were developed. The major purpose was to compare the cost of intermediate level maintenance training when conducted on simulated vs actual avionics test equipment. This was the initial phase of a planned two-part effort. The analysis was therefore limited to estimates of training device acquisition and maintenance costs. Total estimated fifteen year costs for simulated equipment trainers were approximately 50% less than comparable estimates for actual equipment trainers.

Life Cycle Cost Modeling of Pumps Using an Activity Based Costing Methodology

2010 ◽  
Author(s):  
Laxman Yadu Waghmode ◽  
Anil Dattatraya Sahasrabudhe
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Product Life Cycle ◽  
Business Environment ◽  
Life Cycle Costing ◽  
Activity Based Costing ◽  
Global Business ◽  
Product Life ◽  
Traditional Costing ◽  
The Cost

In order to survive in today’s competitive global business environment, implementation of life cycle costing methodology with a greater emphasis on cost control could be one of the convincing approaches for the manufacturing firms. The product life cycle costing approach can help track and analyse the cost implications associated with each phase of product life cycle. Life cycle costing (LCC) practices with traditional costing methods may provide results that have a severe deviation from the real product LCC as it focuses on the cost of materials, labor and a low portion of overheads apportioned by the absorption rate to the product. Activity based costing (ABC) has emerged as one of the several innovative and more accurate costing methods in recent years. It is based on the principle that products or services consume activities and activities consume resources that generate costs. Thus, the ABC system focuses on calculating the costs incurred on performing the activities to manufacture a product. This paper presents a LCC modeling approach for estimating life cycle cost of pumps using activity based costing method. The study was conducted in a large pump manufacturing company from India that has significant global standing within its industry. Firstly, all the activities and cost drivers associated with the life cycle of a pump have been identified. A methodology for LCC analysis using ABC is then developed and it is applied to two different pumps manufactured by the same industry and the results obtained are presented.

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