The efficient energy ? Assessment of influence of ash content in coal on moisture bonding

Kód výsledku v IS VaVaI

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Nalezeny alternativní kódy

RIV/61989100:27350/11:86078902 RIV/61989100:27730/11:86078902

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The efficient energy ? Assessment of influence of ash content in coal on moisture bonding

Popis výsledku v původním jazyce

From the point of energy, moisture of coal represents important parameter which influences the calorific value. The high content of waters in coal decreases the efficiency of combustion processes because 20 to 25 % of heat released during combustion is lost for water removal. It is necessary to know behaviour of water in coal for the purposes of obtaining of efficient energy. For this study, there were selected: two samples of coal from the Libous Open Pit Mine (Severoceske doly, .a. s. ? North BohemianMines, Chomutov, Czech Republic) and one sample of coal from MIBRAG Mines (Rohrbraunkohle, Germany). The Mines MIBRAG are exploiting coals with calorific values of 9 to 11.5 MJ/kg containing 6.5 to 9 % of ash, water content of 48 to 53 % and sulphur concentration of 1.5 to 2 %. The sample from the Mine Libous has moisture around 3 to 32 %, ash content of 31 %, calorific value of 11.5 MJ/kg, and sulphur concentration of 2.5 to 3 %. The studied samples differ significantly in their moistu

Název v anglickém jazyce

The efficient energy ? Assessment of influence of ash content in coal on moisture bonding

Popis výsledku anglicky

From the point of energy, moisture of coal represents important parameter which influences the calorific value. The high content of waters in coal decreases the efficiency of combustion processes because 20 to 25 % of heat released during combustion is lost for water removal. It is necessary to know behaviour of water in coal for the purposes of obtaining of efficient energy. For this study, there were selected: two samples of coal from the Libous Open Pit Mine (Severoceske doly, .a. s. ? North BohemianMines, Chomutov, Czech Republic) and one sample of coal from MIBRAG Mines (Rohrbraunkohle, Germany). The Mines MIBRAG are exploiting coals with calorific values of 9 to 11.5 MJ/kg containing 6.5 to 9 % of ash, water content of 48 to 53 % and sulphur concentration of 1.5 to 2 %. The sample from the Mine Libous has moisture around 3 to 32 %, ash content of 31 %, calorific value of 11.5 MJ/kg, and sulphur concentration of 2.5 to 3 %. The studied samples differ significantly in their moistu

Druh

D - Stať ve sborníku

CEP obor

DM - Tuhý odpad a jeho kontrola, recyklace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

28th annual international Pittsburgh coal conference 2011 : Pittsburgh, Pennsylvania, USA 12-15 September 2011

ISBN

978-1-61839-398-2

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

357-365

Název nakladatele

International Pittsburgh Coal Conference

Místo vydání

Pittsburgh

Místo konání akce

Pittsburgh

Datum konání akce

12. 9. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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