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A Method For Uncertainty Managementin Life Cycle Assessment Studies –A Tiered-Hybrid Case Study Of An Irish Construction Project, Deidre Wolff
Doctoral
Life Cycle Assessment (LCA) quantifies the potential environmental impact of a product system throughout its life cycle from raw material extraction, production, manufacture, use and maintenance through to final disposal. The results from LCA studies are often used to support decision-making processes andpolicy development. LCA is conducted in four iterative steps, beingGoal and Scope definition, Life Cycle InventoryAnalysis (LCI), Life Cycle Impact Assessment (LCIA), andInterpretation. The guidelines for each step are provided in the International Organization for Standardization (ISO) standards, ISO 14040:2006 and 14044:2006. Uncertainty arises in all steps of an LCA,yet the propagation and reporting of these uncertainties is …
The Integration Between Strategy Formulation And Implementationin Construction Contracting Firms In Ireland, Ahmed Hassan
The Integration Between Strategy Formulation And Implementationin Construction Contracting Firms In Ireland, Ahmed Hassan
Doctoral
The role of the construction sector in Ireland is critical in terms of the economic and social development however the economic, competitive, and regulatory business environment present a myriad of complexities to firms operating within the sector. The importance of strategic planning for business survival and prosperity has been well documented over several decades of research but there remains a paucity of empirical evidence to determine the in strategic decision-making process under these volatile environmental conditions.This study addresses the perceptible gap in existing knowledge by investigating the characteristics of the strategy strategic decision-making process, strategic choices, and implementation process in …
Design Of A Transpired Air Heating Solar Collector With An Inverted Perforated Absorber And Asymmetric Compound Parabolic Concentrator., Nasif Shams
Doctoral
absorber and an asymmetric compound parabolic concentrator was applied to increase the intensity of solar radiation incident on the perforated absorber. A 2D ray tracing model quantified optical efficiency at different incident angles within 27o to 89o incident angles. The beam efficiency was found to vary between 72% and 79% and diffuse efficiency was found to vary between 48.2% and 65%. The average thermal efficiency was found to be approximately 55%-65% with average radiation above 400 W/m2 for flow rates in the range of 0.03 kg/s/m2 to 0.09 kg/s/m2. Experimental results at air flow rates of 0.03 kg/s/m2 and 0.09 …