Life Cycle Costs as a Benchmark

2005 ◽  
Keyword(s):  
Life Cycle ◽  
Life Cycle Costs

Life-Cycle Costs of Selected Uniformed Health Professions (Phase II: The Impact of Constraints and Policies on the Optimal-Mix-of-Accession Model)

2003 ◽  
Author(s):  
Shayne Brannman ◽  
Eric W. Christensen ◽  
Ronald H. Nickel ◽  
Cori Rattelman ◽  
Richard D. Miller
Keyword(s):  
Life Cycle ◽  
Phase Ii ◽  
Health Professions ◽  
Life Cycle Costs ◽  
Optimal Mix ◽  
The Impact

Impacts of Various Maintenance Tasks on Life-cycle Costs of a Power Grid Project

2020 ◽  
Author(s):  
Shuyan Zhang ◽  
Shuyin Duan ◽  
Fushuan Wen ◽  
Farhad Shahnia ◽  
Qingfang Chen ◽  
...  
Keyword(s):  
Life Cycle ◽  
Power Grid ◽  
Life Cycle Costs

scholarly journals Impact of Cycle Time and Payload of an Industrial Robot on Resource Efficiency

Robotics ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 33
Author(s):  
Florian Stuhlenmiller ◽  
Steffi Weyand ◽  
Jens Jungblut ◽  
Liselotte Schebek ◽  
Debora Clever ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Resource Efficiency ◽  
Life Cycle Costs ◽  
Gas Emissions ◽  
Cycle Times ◽  
The Individual

Modern industry benefits from the automation capabilities and flexibility of robots. Consequently, the performance depends on the individual task, robot and trajectory, while application periods of several years lead to a significant impact of the use phase on the resource efficiency. In this work, simulation models predicting a robot’s energy consumption are extended by an estimation of the reliability, enabling the consideration of maintenance to enhance the assessment of the application’s life cycle costs. Furthermore, a life cycle assessment yields the greenhouse gas emissions for the individual application. Potential benefits of the combination of motion simulation and cost analysis are highlighted by the application to an exemplary system. For the selected application, the consumed energy has a distinct impact on greenhouse gas emissions, while acquisition costs govern life cycle costs. Low cycle times result in reduced costs per workpiece, however, for short cycle times and higher payloads, the probability of required spare parts distinctly increases for two critical robotic joints. Hence, the analysis of energy consumption and reliability, in combination with maintenance, life cycle costing and life cycle assessment, can provide additional information to improve the resource efficiency.

Life Cycle Costs

World Pumps ◽  
2001 ◽  
Vol 2001 (419) ◽  
pp. 28 ◽  
Author(s):  
Kjell Alfredsson
Keyword(s):  
Life Cycle ◽  
Life Cycle Costs

Minimizing Life Cycle Costs of Wastewater Pumps

2003 ◽  
Vol 3 (5) ◽  
pp. 233-236 ◽  
Author(s):  
K. Ackermann
Keyword(s):  
Life Cycle ◽  
Life Cycle Costs

scholarly journals Expandable Houses: An Explorative Life Cycle Cost Analysis

2021 ◽  
Vol 13 (12) ◽  
pp. 6974
Author(s):  
Charlotte Cambier ◽  
Waldo Galle ◽  
Niels De De Temmerman
Keyword(s):  
Life Cycle ◽  
Circular Economy ◽  
Life Cycle Cost ◽  
Lower Cost ◽  
Social Economic ◽  
Life Cycle Costs ◽  
Life Cycle Cost Analysis ◽  
Specific Design ◽  
Dynamic Perspective ◽  
Housing Needs

In addition to the environmental burden of its construction and demolition activities, the Flemish housing market faces a structural affordability challenge. As one possible answer, this research explores the potential of so-called expandable houses, being built increasingly often. Through specific design choices that enable the disassembly and future reuse of individual components and so align with the idea of a circular economy, expandable houses promise to provide ever-changing homes with a smaller impact on the environment and at a lower cost for clients. In this paper, an expandable house suitable for various housing needs is conceived through a scenario-based research-by-design approach and compared to a reference house for Flanders. Subsequently, for both houses the life cycle costs are calculated and compared. The results of this exploration support the proposition that designing expandable houses can be a catalyst for sustainable, circular housing development and that households could benefit from its social, economic and ecological qualities. It requires, however, a dynamic perspective on evaluating their life-cycle impact.

Coordination of User and Agency Costs Using Two-Level Approach for Pavement Management Optimization

2017 ◽  
Vol 2639 (1) ◽  
pp. 110-118 ◽  
Author(s):  
André V. Moreira ◽  
Tien F. Fwa ◽  
Joel R. M. Oliveira ◽  
Lino Costa
Keyword(s):  
Life Cycle ◽  
Agency Costs ◽  
Optimization Problems ◽  
Pavement Management ◽  
Life Cycle Costs ◽  
Optimal Solutions ◽  
User Costs ◽  
Conflicting Objectives ◽  
Optimization Methodology ◽  
Management Optimization

Pavement maintenance and rehabilitation programming requires the consideration of conflicting objectives to optimize its life-cycle costs. While there are several approaches to solve multiobjective problems for pavement management systems, when user costs or environmental impacts are considered the optimal solutions are often impractical to be accepted by road agencies, given the dominating share of user costs in the total life-cycle costs. This paper presents a two-stage optimization methodology that considers maximization of pavement quality and minimization of agency costs as the objectives to be optimized at the pavement section level, while at the network level, the objectives are to minimize agency and user costs. The main goal of this approach is to provide decision makers with a range of optimal solutions from which a practically implementable one could be selected by the agency. A sensitivity analysis and some trade-off graphics illustrate the importance in balancing all the objectives to obtain reasonable solutions for highway agencies. Multiobjective optimization problems at both levels are solved using genetic algorithms. The results of a case study indicate the applicability of the methodology.

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