The investigation of energy efficiency measures in the traditional buildings in Oporto World Heritage Site

Background The improvement of energy efficiency in buildings is widely promoted as a measure to mitigate climate change through the reduction of CO2 emissions. Thermal regulations worldwide promote it, for both new and existing buildings. Among the existing stock, traditional and historic buildings pose the additional challenge of heritage conservation. Their energy efficiency upgrade raises the risk of provoking negative impacts on their significance. Aims and Methodology This research used an approach based on impact assessment methodologies, defining an inital baseline scenario for both heritage and energy, from which the appropriate improvement solutions were identified and assessed. The measures were dynamically simulated and the results for energy, CO2, cost and comfort compared with the initial scenario, and then being further assessed for their heritage impact to eventually determine the most feasible solutions. To test this method, ten case studies, representative of the identified typological variants, were selected among Oporto’s traditional buildings located in the World Heritage Site. Findings and Conclusions The fieldwork data revealed that the energy consumption of these dwellings was below the European average. Additionally, the households expressed that their home comfort sensation was overall positive. The simulations showed that the introduction of insulation and solar thermal panels were ineffective on these cases in terms of energy, cost and comfort. At the same time, these measures pose a great risk to the buildings heritage value. The most efficient solutions were obtained from behavioural changes and DHW retrofit. The study reinforced the idea that traditional buildings performed better than expected and can be retrofitted and updated at a low-cost and with passive solutions. The use of insulation and solar panels should be disregarded.

Annual report of energy purchased by REA borrowers /

Mode of access: Internet.

DOE/EPA/NSF/ONR joint program on bioremediation : interagency announcement of opportunity : Environmental Protection Agency, Department of Energy, National Science Foundation, Office of Naval Research jointly announce the availability of 1996 grants for research.

Mode of access: Internet.

Adsorption of energy-related organic pollutants : a literature review /

Mode of access: Internet.

Comparison of energy consumption between West Germany and the United States

"Contract no. 14-01-001-1885."

The federal government should more actively promote energy conservation by heavy trucks. Report to the Secretaries of Energy and Transportation.

Mode of access: Internet.

Cost and management of nuclear safety and cleanup and compliance at Department of Energy defense sites [microform] : hearing before the Committee on Governmental Affairs, United States Senate, One Hundredth Congress, second session, Wednesday, July 13, 1988.

CIS Microfiche Accession Numbers: CIS 89 S401-10

Results of energy-loss measurements on passenger car tires operating in the free-rolling and braking/traction modes. Final report.

Transportation Systems Center, Cambridge, Mass.

The electric vehicle program of the U.S. Department of Energy.

Mode of access: Internet.

The transportation of energy materials in the United States : a bibliography /

Sponsored by U. S. Dept. of Energy, Transportation Energy Conservation Division, Non-Highway Transport Systems Branch.

Department of Energy solar energy objectives : calendar year 1980.

Mode of access: Internet.

Department of Defense authorization for appropriations for fiscal year 2010 : hearing before the Committee on Armed Services, United States Senate, One Hundred Eleventh Congress, first session, on S. 1390, to authorize appropriations for fiscal year 2010 for military activities of the Department of Defense, for military construction, and for defense activities of the Department of Energy, to prescribe personnel strengths for such fiscal year, and for other purposes.

"May 20 and June 3, 2009"--Pt. 6-7.

Propagation and use of Spartina alterniflora for shoreline erosion abatement /

Experimental plantings to stabilize eroding shorelines in Bogue Sound in 1974 were successful. Better stands were produced on sites subject to severe wave stress by reducing transplant spacing to 1.5 to 2 feet apart. Rhizomes without well-developed culms attached were worthless as propagules within the intertidal zone. Seeding was unsuccessful due to exposure to excessive wave energy.

The use of backscattered gamma rays for evaluating defects in logs and trees /

"Contract No. AT-(40-1)-2513."

Some aspects of the prospective experimental use of the Stanford two-mile accelerator /

Eleven papers dealing with photon beams from the accelerator, use of hydrogen bubble chambers and spark chambers, a storage ring for 10-Bev muons, muon beams and -p scattering experiments, mass analysis of highenergy accelerator beams, the search for intermediate bosons and heavy leptons, particle yields arising from decay of short-lived intermediate particles, and conjectures on the effects of Regge poles on Drell processes are included. Separate abstracts were prepared for the eleven papers. (D.C.W.).