Showing papers in "Energy in 2000"

TL;DR: Index decomposition methodology was a technique first used in the late 1970s to study the impact of changes in product mix on industrial energy demand and has been increasingly used in energy-related environmental analysis.

TL;DR: In this paper, rice husks were pyrolysed at 550°C with zeolite ZSM-5 catalyst upgrading of the pyrolysis vapours at catalyst temperatures of 400, 450, 500, 550, and 600°C.

TL;DR: In this paper, a multilayer recurrent architecture using the standard back-propagation learning algorithm has been applied to predict the energy consumption of a passive solar building for two seasons: winter and summer.

TL;DR: In this paper, an automated link of two independently running models is described, which is the result of linking a macroeconomic model with a detailed energy supply model, and the purpose of the linkage is to consistently reflect the influence of energy supply costs as calculated by the ESS model in the optimal mix of production factors included in the macro economic model.

TL;DR: In this article, an in-depth analysis of the US cement industry, identifying cost-effective energy efficiency measures and potentials, is presented. But the authors focus on the use of blended cements as a key cost effective strategy for energy efficiency improvement and carbon dioxide emission reduction.

TL;DR: In this paper, a combined thermal power and cooling cycle is proposed, which combines a Rankine cycle and an absorption refrigeration cycle, which can provide power output as well as refrigeration with power generation as a primary goal.

TL;DR: In this paper, the authors examined the destruction of availability (exergy) during combustion processes in an adiabatic, constant volume system with octane-air mixtures.

TL;DR: In this article, the use and conversion of energy carriers and materials in the Norwegian society in 1995 were investigated by an exergy analysis, and the end use was broken down into nine end-use sectors: forest industry, food sector, aluminum industry, steel and other metal industry, chemical industry, transportation, households, public service, and other industry.

TL;DR: In this article, an input-output study of the energy requirements for the manufacture of basic iron and steel products by the Australian steel industry is presented, based on a decomposition of the total energy requirement per mass output of steel into partial requirements from industry sectors supplying the steel industry, showing that truncation error in this process analysis, that is, the omission of higher order energy contributions, is of the order of 50%.

TL;DR: In this paper, a finite-time thermodynamic analysis of an endoreversible Stirling heat engine with an ideal regenerator is presented, and the effect of the effectiveness of various heat exchangers, the inlet temperatures of external heat reservoirs on the power output and the corresponding thermal efficiency have been studied.

TL;DR: In this article, the optimal integration of condensing boilers, compression and absorption heat pumps, and cogeneration of heat and power is computed for 100 well insulated housing units with an annual total heat demand of 616 MWh.

TL;DR: In this paper, the authors presented exergetic and engineering analyses as well as a simulation of gas turbine-based cogeneration plants consisting of a gas turbine, heat recovery steam generator and steam turbine.

TL;DR: In this paper, the authors considered the city of Istanbul in Turkey and presented a detailed account for practical energy requirements and fuel consumption calculations, based on human comfort levels and available meteorological temperature records for a given area.

TL;DR: In this article, an attempt has been made to estimate the annual emission of certain greenhouse and other gases and substances from biomass energy sources in selected countries of Asia, where the reported values of the different emission factors for biomass combustion have been compiled from an extensive literature review.

TL;DR: In this paper, the authors defined two electric grids for the area of Jutland in Denmark, namely the existing grid versus a nature protection grid, in which all 400 kV AC overhead lines are replaced by 150 kV lines.

TL;DR: In this article, three extended decomposition models were developed through refining these three basic models and these three extended models give exactly the same decomposition results and they, together, can be treated as an exact decomposition model.

TL;DR: In this article, the authors presented an optimal renewable energy model that minimizes the cost/efficiency ratio and determines the optimum allocation of different renewable energy sources for various end-uses.

TL;DR: In this article, the results provided by different models in the estimation of hourly direct irradiance values were analyzed and compared with the results obtained by the parametric model when using hourly values of the Angstrom turbidity parameter b with those obtained when using monthly means of b.

TL;DR: In this article, a combined cycle consisting of an ammonia-water Rankine cycle with refuse incinerator and a LNG cold energy cycle was developed to investigate the effects of key parameters on the thermal and exergy efficiencies.

TL;DR: In this paper, the wind velocity, topography and wind energy variation maps obtained for Turkey with local and regional interpretations are presented, along with the wind energy potential in every country.

TL;DR: In this paper, the authors used the TRNSYS computer program for the modeling and simulation of the energy flows of the modern houses of Cyprus followed by an energy consumption analysis, which indicated the importance of the roof insulation, which results in a reduction up to 45.5% of cooling load and up to 75% of heating load.

TL;DR: In this article, the potential to improve the energy efficiency of lighting systems at Melbourne University was assessed and the cost effectiveness of different lighting technology alternatives was also calculated, and it was shown that none of the four technology alternatives are cost effective, although fine scale analysis shows that one technology alternative is cost effective in two out of the five room categories that were examined.

TL;DR: In this article, the authors investigated the performance of a solar assisted ground-coupled heat pump space heating system with seasonal energy storage in a hemispherical surface tank using analytical and computational methods.

TL;DR: In this article, a two-step process using a WO3/W redox system may be a potentially new thermochemical path that produces useful energy carriers of processed metal, syngas and methanol for storing and transporting solar energy from the sun belt to remote population centers.

TL;DR: In this paper, the feasibility of using inlet air cooling by virtue of the cold energy of liquefied natural gas (LNG) to increase power output of gas/steam combined cycle power plants during warm seasons is analyzed.

TL;DR: In this article, the authors presented an analytical optimization of a remote power system for a hypothetical Alaskan village, considering the potential of generating renewable energy (e.g., wind and solar), along with the possibility of using energy storage to take full advantage of the intermittent renewable sources available to these villages.

TL;DR: It is found that HERS can, on average, predict annual energy cost accurately, but on an individual house basis the agreement between predicted energy cost and actual energy cost was often poor, especially for older houses.

TL;DR: In this article, an energy analysis was made of a land-based OTEC system proposed for Taiwan using emergy evaluation methods (emergy spelled with an ‘m’), and an emergy yield ratio of 1.4 indicates a small net contribution of electric power, but less than from forest wood, fossil fuel, and nuclear fission.

TL;DR: In this paper, the authors developed meaningful physical energy intensity indicators for all sectors of the Dutch economy and studied the sectoral energy intensity developments for the period 1980-1995 by means of these indicators.

TL;DR: In this paper, the long-run structural relationships of coal demand with price and income variables have been estimated for the four major coal consuming sectors in India using annual time series data from 1970-1995.