Energy intensity trends

See also Energy Intensity Trends Environmental Problems and Energy Use Industry and Business, Energy as a Factor of Production in. 

ENERGY-INTENSITY TRENDS IN THE UNITED STATES, 1972 TO 198G... 

After 1986, the CAFE and appliance standards in place resulted in stock turnovers to more efficient automobiles and appliances. However, the decline in energy consumption per dollar of GDP slowed appreciably and, between 1986 and 1997, the energy intensity trend remained rather flat. Other forces in the U.S. economy were pushing energy consumption higher, resulting in increases in the energy-intensity measure. 

See also Agriculture Energy Economics Energy Intensity Trends Reserves and Resources. 

See also Electricity Energy Intensity Trends Heat and Heating Heat Transfer Magnetism and Magnets Molecular Energy Refrigerators and Freezers Thermal Energy. 

Industrial sector economic energy intensity trends in selected industrialized countries, 1970-1995. 

See also Energy Intensity Trends Geography and Energy Use Geothermal Energy Thermal En-ergy. 

Above, we said that (apart from crises like the eleven OPEC years) energy intensity E/GDP falls about 1 percent year (E is inversely proportional to energy efficiency, 11). Here we are concerned with trends in United States, and later, world energy use, so we write ... 

Trends in physical energy intensity in seven countries between 1971 and 1994. 

Recycling of old asphalt pavements is an energy-intensive activity which is being stimulated by two factors—the decreasing availability of total absence of quality aggregates in a number of regions around the country and the current price trends and projected demands for asphalt cement. These factors were discussed in the beginning of this chapter. 

Because of the influence of sector stmcture on energy intensity, cross-coimtiy or cross-time comparisons cannot be made based solely on trends in the absolute value of the energy efficiency indicator (SEC) for each cormtry. To be able to compare developments in energy efficiency between cormtries and over time, differences and changes in economic stmctrrre have to be taken into accormt. Two approaches are used for this, the reference plant approach and decomposition analysis. 

Overall, the catalyst is one of the most important aspects of current chemicals and fuels processing. Industries have become dependent on the development of new and improved catalysts. Many catalyst improvements have helped processes become greener, less energy-intensive, faster, selective, and more cost-effective. It could be suggested that catalysts wiU show a similar trend in biofuels processes. With continued focus on catalyst development for energy and fuels, the concept of energy independence may become possible. 

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