An approach for an educational building stock energy retrofits through life-cycle cost optimization

2018 ◽  
Vol 61 (3) ◽  
pp. 122-132 ◽  
Author(s):  
Yiğit Yılmaz ◽  
Gül Koçlar Oral
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Cost Optimization ◽  
Building Stock

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%.

Life cycle cost optimization of biofuel supply chains under uncertainties based on interval linear programming

2015 ◽  
Vol 187 ◽  
pp. 6-13 ◽  
Author(s):  
Jingzheng Ren ◽  
Liang Dong ◽  
Lu Sun ◽  
Michael Evan Goodsite ◽  
Shiyu Tan ◽  
...  
Keyword(s):  
Linear Programming ◽  
Life Cycle ◽  
Supply Chains ◽  
Life Cycle Cost ◽  
Cost Optimization ◽  
Interval Linear Programming ◽  
Interval Linear

An innovative Information System for Life Cycle Cost Optimization

2004 ◽  
Author(s):  
Giuseppe F. De Luca ◽  
Marco Giannetti ◽  
Ennio Guarino ◽  
Roberto Ibba
Keyword(s):  
Information System ◽  
Life Cycle ◽  
Life Cycle Cost ◽  
Cost Optimization

Reliability based life cycle cost optimization for underground pipeline networks

2014 ◽  
Vol 43 ◽  
pp. 32-40 ◽  
Author(s):  
Kong Fah Tee ◽  
Lutfor Rahman Khan ◽  
Hua Peng Chen ◽  
Amir M. Alani
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Cost Optimization ◽  
Underground Pipeline ◽  
Pipeline Networks

The Influence of Engine Characteristics on Patrol Aircraft Life Cycle Cost Optimization

1982 ◽  
Author(s):  
A. J. Schuetz
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
High Speed ◽  
Cost Optimization ◽  
Life Cycle Costs ◽  
Design Constraints ◽  
Performance Requirements ◽  
Aircraft Performance ◽  
Antisubmarine Warfare ◽  
Flight Profile

A conceptual design study has been conducted for an all-new, land-based patrol aircraft for the U.S. Navy. The selected propulsion system was a conceptual high-speed turboprop. An antisubmarine warfare mission was chosen for the design flight profile. Probable peacetime utilization was postulated so that the engine duty cycle could be estimated. Aircraft designs were optimized for minimum takeoff gross weight (TOGW) and for minimum life cycle cost (LCC). It was shown that the aircraft performance requirements and design constraints bound the optimization process so tightly that the same point design is obtained for both TOGW and LCC criteria. The contribution of the engine costs to the overall life cycle costs was examined. The sensitivity of the aircraft optimization to the engine characteristics — specific fuel consumption (SFC), length, diameter, and cost — was analyzed. It was determined that SFC is the most significant engine characteristic.

Cost optimization of concrete bridge infrastructure

2003 ◽  
Vol 30 (5) ◽  
pp. 841-849 ◽  
Author(s):  
Mostafa A Hassanain ◽  
Robert E Loov
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
High Performance ◽  
High Performance Concrete ◽  
Cost Optimization ◽  
Concrete Bridges ◽  
Concrete Bridge ◽  
Analysis And Design ◽  
Prestressed Girders ◽  
Advanced Analysis

Recent surveys have indicated that between 30% and 40% of all bridges in North America are in various states of deterioration. Funding is limited owing to the existence of other deficient components of the transportation infrastructure. It is clear, therefore, that the return on the available funding needs to be maximized. This paper presents a review of publications on cost optimization of concrete bridge components and systems and then continues with a review of the state-of-the-art in life-cycle cost (LCC) analysis and design of concrete bridges. The main objective of the paper is to encourage bridge engineers to move towards the increased use of advanced analysis and design optimization methods.Key words: bridge, concrete, cost, high-performance concrete, infrastructure, life-cycle cost, optimization, prestressed girders, reliability.

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