Estimation of calorific values of Turkish lignites

Küçükbayrak, Sadriye; Dürüs, Burak; Meriçboyu, Ayşegül Ersoy; Kadioglu, E.

doi:10.1016/0016-2361(91)90054-e

Cited by 69 publications

(18 citation statements)

References 2 publications

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“…Various formulae for calculating heating values of coals from their proximate analyses have been proposed by different authors (Selvig and Gibson, 1945;Elliott and Yohe, 1981;Kucukbayrak et al, 1991;Channiwala and Parikh, 2002):…”

Section: Introductionmentioning

confidence: 99%

Relationships Proximate Analysis Results and Higher Heating Values of Lignites

Demırbas¹

2008

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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In this study, the higher heating values (HHVs) of 26 lignite samples were calculated by using the proximate and elemental analyses data. The proximate analysis results such as volatile materials (VM), fixed carbon (FC) and HHV and the elemental analysis results such as carbon (C), hydrogen (H), oxygen (O), nitrogen (N) and sulfur (S) were determined for 26 lignite samples from different areas of Turkey. The lignite samples have been tested with particle size of 0-0.05 mm. The HHVs of 26 lignite samples obtained from different Turkish sources were determined experimentally and calculated from both ultimate and proximate analyses. HHVs of 26 the lignite samples can be calculated from the Equation based modeling. The HHVs (MJ/kg) of the lignite samples as a function of fixed carbon (FC, wt%) or volatile materials (VM, %) was calculated from the following equations: HH V D 0:300F C C 11:117 (1) HH V D 0:323VM C 42:223 (2) where the correlation coefficients for Eqs. (1) and (2) were 0.9907 and 0.9862, respectively. The combustion heats calculated from Eqs. (1) and (2) showed mean differences of C3.9% and C0.3%, respectively. The HHVs (MJ/kg) of the lignite samples as a function of C, H, O, N, and S were calculated from the following equation:where the correlation coefficients for Eq. (3) was 0.9891. HHVs calculated from Eq.(3) showed a mean deviation of C0.1.

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Section: Introductionmentioning

confidence: 99%

Relationships Proximate Analysis Results and Higher Heating Values of Lignites

Demırbas¹

2008

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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“…Similarly high correlations between random reflectance and the aforementioned parameters in low-rank coal have been demonstrated by Küçükbayraka et al [28], Demirbas [29], and Chehreh Chelgania et al [30], where the value of the correlation coefficient between random reflectance and gross calorific value recalculated to ash-free basis varies from 0.91 to 0.96, while for C daf it reaches 0.93.…”

Section: Gcv Maf [Mj/kg]mentioning

confidence: 76%

Relationship between random reflectance of ulminite B/collotelinite and technological parameters of Polish low-rank coal

Bielowicz

2013

Fuel

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“…The proximate and ultimate analyses and microscopic investigations, thermal reactivities, coal structures, combustion characteristics, and extract qualities were carried out for Turkish coal and diesel fuel samples (Erbatur et al, 1991;Piskin et al, 1992;Gurkan and Gurer, 1985;Gurer, 1981;Kucukbayrak et al, 1991;Demirbas, 1998a;Okudan et al, 1998;Kara and Mirzaoglu, 1998;Seferioglu and Yurum, 2000;Karayigit and Gayer, 2000;Unal, 1995;Unal et al, 1993;Ozdogan et al, 1997;Ozdemir and Zelkowski, 1998;Durusoy, 1999;Karaca and Ceylan, 1997;.…”

Section: Oxidation and Liquefactionmentioning

confidence: 99%

Progress of Fossil Fuel Science

Demirbas¹

2007

Energy Sources, Part B: Economics, Planning, and Policy

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Estimation of calorific values of Turkish lignites

Cited by 69 publications

References 2 publications

Relationships Proximate Analysis Results and Higher Heating Values of Lignites

Relationships Proximate Analysis Results and Higher Heating Values of Lignites

Relationship between random reflectance of ulminite B/collotelinite and technological parameters of Polish low-rank coal

Progress of Fossil Fuel Science

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