Estimating thermodynamic properties of coal, char, tar and ash

Eisermann, W.; Johnson, Paula J.; Conger, W. L.

doi:10.1016/0378-3820(80)90022-3

Cited by 101 publications

(34 citation statements)

References 4 publications

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“…The specific chemical exergy, ex ch depends on the chemical composition of a substance in its particular state, and if it is in equilibrium with the reference environment [28]. For solid fuels, the specific chemical exergy can be estimated based on the elemental compositions of the fuel [29][30][31][32][33][34][35][36][37].…”

Section: Exergy Analysismentioning

confidence: 99%

Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review

2017

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Abstract:The growing demand for energy is particularly important to engineers with respect to how the energy produced by heat and power plants can be used efficiently. Formerly, performance evaluation of thermal power plants was done through energy analysis. However, the energy method does not account for irreversibilities within the system. An effective method to measure and improve efficiency of thermal power plant is exergy analysis. Exergy analysis is used to evaluate the performance of a system and its main advantage is enhancement of the energy conversion process. It helps identify the main points of exergy destruction, the quantity and causes of this destruction, as well as show which areas in the system and components have potential for improvements. The current study is a comprehensive review of exergy analyses applied in the solid fuels heat and power sector, which includes coal, biomass and a combination of these feedstocks as fuels. The methods for the evaluation of the exergy efficiency and the exergy destruction are surveyed in each part of the plant. The current review is expected to advance understanding of exergy analysis and its usefulness in the energy and power sectors: it will assist in the performance assessment, analysis, optimization and cost effectiveness of the design of heat and power plant systems in these sectors.

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Section: Exergy Analysismentioning

confidence: 99%

Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review

2017

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“…The heat capacity of the coal particles, C ps , was approximated using the following equation of Eisermann et al [10], with the fixed carbon amount F and the volatile matter V of the LRC being as indicated in Table 1.…”

Section: Simulation Conditionsmentioning

confidence: 99%

Energy-efficient fluidized bed drying of low-rank coal

Liu

Ohara

2017

Fuel Processing Technology

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“…Thereafter, transient techniques, such as the hot wire method (Badzioch et al [7], Dindi et al [8]), hot plate method (Dindi et al [8]), heat flow meter method (Singer and Tye [9], Herrin and Deming [10]), plane source method (Suleiman et al [11]), optical scanning method (Popov et al [12]), and numerical CATA (computer aided thermal analysis) technique (Stanger et al [13]) were developed. Measurements of the thermal conductivity of solid fuels are often associated with those of specific heat and are included in the reviews of Clendenin et al [6], Badzioch et al [7], Agroskin et al [14], Eisermann et al [15] and Strezov et al [16].…”

Section: Introductionmentioning

confidence: 99%

Determination of the effective thermal conductivity of solid fuels by the laser flash method

Kosowska-Golachowska¹,

Gajewski²,

Musiał³

2014

Archives of Thermodynamics

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In this study, a new laser flash system was proposed for the determination of the thermal conductivity of brown coal, hard coal and anthracite. The main objective of the investigation was to determine the effect of coal rank, composition, physical structure and temperature on thermal conductivity. The solid fuels tested were medium conductors of heat whose determined thermal conductivities were in the range of 0.09 to 0.23 W/(m K) at room temperature. The thermal conductivity of the solid fuels tested typically increased with the rank of coal and the measurement temperature. The results of this study show that the physical structure of solid fuels and temperature have a dominant effect on the fuels' thermal conductivity.Keywords: Effective thermal conductivity; Effective thermal diffusivity; Specific heat; Laser flash method; Hard coal; Brown coal; Anthracite-fixed carbon content, wt% h -thickness, m HHV -higher heating value -calorific value, MJ/kg M -moisture content, wt%

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Estimating thermodynamic properties of coal, char, tar and ash

Cited by 101 publications

References 4 publications

Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review

Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review

Energy-efficient fluidized bed drying of low-rank coal

Determination of the effective thermal conductivity of solid fuels by the laser flash method

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