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The National Program Plan for the Thermal Performance of Building Envelop Systems and Materials

P.R. AchenbachOak Ridge National Laboratory

出版	Oak Ridge National Laboratory, 1982
URL	http://books.google.com.hk/books?id=iaRb0AEACAAJ&hl=&source=gbs_api

註釋The use of energy in buildings in the United States has increased from 33 to 36% of total usage for all purposes in the last five years, while at the same time the 1980 energy use in buildings was about 3%below the maximum level in 1978. This suggests that the program for energy conservation in buildings has been relatively less effective than the conservation efforts in the industrial and transportation sectors. Nevertheless, there is a large potential for saving energy in new and existing buildings. A broadly based demonstration of energy conservation in 200 family houses by the Community Services Administration and the National Bureau of Standards showed that an average of39% reduction in energy use was achieved when all of the readily implemented conservation measures that were cost-effective over a 20 -year life were carried out in the houses. All projections of energy use in the United States indicate that a substantial gap between domestic supply and demand for oil and gas fuels will exist through the remainder of this century and that large importation of these fuels will continue during that period. The dependence on foreign sources of fuel and the continuing rapid rise in fuel prices pose significant threats to the welfare of the nation and to its citizens in terms of inadequately heated and cooled buildings, distortion of family and business economics, unfavorable balance of foreign trade, weakened national security, and accelerated obsolescence of a large inventory of existing buildings that are difficult and costly to upgrade.