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Full-Text Articles in Engineering
The Importance Of The “Local” In Walkability, Cynthia Carlson, Semra Aytur, Kevin Gardner, Shannon Rogers
The Importance Of The “Local” In Walkability, Cynthia Carlson, Semra Aytur, Kevin Gardner, Shannon Rogers
Civil Engineering Faculty Publications
Transportation infrastructure and transportation behaviors consume significant natural resources and are costly to municipalities, states, and the federal government. Small cities, in particular, may find themselves with high costs. Although transportation has been extensively investigated, methods that may enable small cities to act are still lacking. To investigate the influence that neighborhood-level built environment characteristics have on adult personal transportation decisions within small cities, this study combined community-based research, a multi-level analysis of residents, and a case study approach in two (North-Eastern United States) New Hampshire cities, Portsmouth and Manchester. Neighborhood-level physical characteristics were determined using Geographic Information Systems and …
Improving Energy Efficiency And Environmental Sustainability Of Commercial Insulation, Celine F. Manoosingh, James Mihelcic, Manjriker Gunaratne
Improving Energy Efficiency And Environmental Sustainability Of Commercial Insulation, Celine F. Manoosingh, James Mihelcic, Manjriker Gunaratne
Department of Civil Engineering & Construction Faculty Research & Publications
With increasingly stringent energy standards set in place by the Department of Energy, energy efficiency is becoming a paramount concern to manufacturers of appliances. Additionally, the production and disposal of the voluminous amount of polyurethane foam commonly utilized as insulation in refrigeration units poses a significant environmental challenge. In this context, this study investigated an alternative insulation for use in commercial refrigerator/freezer units. A prototype exploring the use of evacuated packets of pyrogenic silica substituting for conventional insulation was assessed. Assessment criteria included experimental comparison of heat transfer characteristics and the energy efficiency of the new insulation as well as …