Sökning: "operational cost"

Visar resultat 31 - 35 av 306 avhandlingar innehållade orden operational cost.

1. 31. Managing Uncertainty in Environmental and Cost Life Cycle Studies of Building Design

   Författare :Peter Ylmen; Jesper Arfvidsson; Kristina Mjörnell; Johanna Berlin; Tomas Ekvall; RISE; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Building design; life cycle; LCA; LCC; uncertainties; method; Building design; life cycle; LCA; LCC; uncertainties; method;

   Sammanfattning : In order to mitigate global warming and address other pertinent environmental issues, it is important to reduce the environmental impact from the building stock. Emissions can be large for both operational energy consumption and production of materials. LÄS MER

3. 32. An assessment of operational consequences of failures to support aircraft scheduled maintenance program development

   Författare :Alireza Ahmadi; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

   Sammanfattning : A majority of the direct and indirect maintenance costs in the life cycle of aircraft stems from the consequences of decisions taken during the initial maintenance program development. In particular, the preventive and corrective maintenance requirements, which greatly influence both the system availability and life cycle cost, need to be defined in order to perform only those preventive actions that are absolutely necessary and costeffective. LÄS MER

4. 33. A Novel Submarine Design Method - Based on technical, economical and operational factors of influence

   Författare :Mats Nordin; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parametric and concept; submarine system design; synthesised design model;

   Sammanfattning : The thesis work, with the openly published journal and conference papers, is motivated by theambition to interact over time with the scientific community in the development of a novelcoherent submarine design method to regain momentum in Swedish submarine computeraided Simulation Based Design (SBD). The work was initially stimulated by an earlyobservation in our submarine engineering community, that the existing knowledge of navalarchitecture and systems theory including cost prediction and operational analysis was notcoherently utilised for the design of Naval Integrated Complex System (NICS), hence theneed for a coherent approach. LÄS MER

5. 34. Comparison of operational limit estimations for FRP laminates – effects of material modelling and stochastic behaviour

   Författare :Luis Felipe Sanchez Heres; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; safety.; FRP; reliability; probability;

   Sammanfattning : Transport companies need vehicles with higher efficiency to remain competitive and comply with environmental regulations. Lightweight construction is one way to increase the efficiency of a vehicle. In some vehicles, lightweight construction can reduce the fuel consumption, increase the cargo capacity and reduce the environmental footprint. LÄS MER

7. 35. On maintenance optimization for offshore wind farms

   Författare :Francois Besnard; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; life cycle cost; optimization; maintenance; maintenance planning; Offshore wind energy; maintenance strategy; maintenance support organization; reliability;

   Sammanfattning : The maintenance cost is known to be an important part of the levelized cost of energy generated by wind parks. Operational costs can be significantly reduced by optimizing decisions for maintenance strategies, maintenance support organization and maintenance planning. LÄS MER