National energy consumption

National Energy Consumption Patterns and Energy "Waste"... 

The commercial energy sector in Kenya is dominated by petroleum and electricity as the main energy sources of the modem sector of the economy. Nevertheless, petroleum rates second (22%) to biomass in terms of total national energy consumption, while electricity accounts for only 9%. Kenya is still heavily dependent on wood fuel and other biomass fuels which together account for 68% of the total energy consiunption. ... 

Fuels for energy and chemical feedstocks must come soon from sources other than petroleum by conversions requiring very involved physical and usually chemical processing. This is particularly true since our national energy consumption is expected to grow (3) hy 1.7 to 2.9% per annum. 

Natural gas is generally priced and sold in units of 1000 cubic feet (Mcf, using the Roman numeral for one thousand). Units of a trillion cubic feet (Tcf) are often used to measure large quantities, as in resources or reserves in the ground or annual nation energy consumption. A Tcf is equal to 1 billion Mcf and is enough natural gas to... 

A projection of biomass energy consumption in the United States for the years 2000, 2010, 2020, and 2030 is shown in Table 6 by end use sector (12). This analysis is based on a National Premiums Scenario which assumes that specific market incentives are appHed to aU. new renewable energy technology deployment. The scenario depends on the enactment of federal legislation equivalent to a fossil fuel consumption tax. Any incentives over and above those in place (ca 1992) for use of renewable energy will have a significant impact on biomass energy consumption. 

Committee on Comminution and Energy Consumption, National Acadeny of Sciences Report No. 364, 1981. 

Energy Conservation Toolsfor the Process Engineer. EpgradingExistingEvaporators to Eeduce Energy Consumption, Report COO/2870-2, National Technical Information Service, U.S. Department of Commerce, Springfield, Va. 22161, 1977. 

From the onset of the Depression (1929) to the beginning of World War II (1941), petroleum s share of total U.S. energy consumption continued to expand, from 24 percent to more than 34 percent (while natural gas increased its share from 8 to 11 percent). Coal continued to lose share in the nation s energy output, from 62 percent to 54 percent. Over the same period, output of motor fuel, while not matching the growth of the previous decade, nevertheless continued its upward trend, from 256.7 million barrels to 291.5 million barrels. 

Genchi et al. (2000) showed that heat dissipation from traffic, air conditioning, and other human activities, during a warm day in Tokyo, adds up to a heat production of 140 W m-2 in Tokyo with a resulting air temperature increase of about 3 °C. A similar estimation for Stockholm results in 70 W m-2. The Swedish energy consumption, mainly based on fossil fuel and nuclear power, corresponds to a national heat generation of 0.16 W m-2 though the country is sparsely populated (20 person km-2). 

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