Advantages at use wcf icon

Advantages at use wcf




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НазваAdvantages at use wcf
Дата08.08.2012
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Water coal fuel is the dispersible system, consisting of fine-divided coal, water and reagent-plasticizer. WCF represents the disperse system consisting of micronized coal, water and a reagent-softener.

Advantages at use WCF:

The ecological:


The economic:


  • Ecologically safe at all stages of manufacture, transportation and use;

  • allows to decrease in 1,5-3,5 times harmful emissions in atmosphere (a dust, nitric oxides, sulphur dioxides).

  • degree of burning out of combustible weight at burning WCF makes 95-97 %, that much more exceeds the same indicator in others fire chamber;

  • at burning of water coal fuel the efficiency is about 80-85 % and depends on their physical condition, provides high profitability of boilers work.




  • reduces cost of 1 ton of conditional fuel in 2-3 and more times in comparison with any other kind of fuel;

  • on 15-30 % operational expenses decrease at storage, transportation and burning;

  • provides decrease in 3 times of capital expenses while translating thermal power station from burning of natural gas and black oil on water coal fuel;

  • the economic return at introduction WCF makes 1-2,5 years.







The technological:

  • Transfer heat-generating installations to burning of WCF does not demand essential changes of a boilers design.

  • allows to easily mechanise and automate processes of reception, fuel delivery and fuel burning.

  • the technology of vortical burning at temperature 950-1050 С0 allows to reach efficiency of use of fuel over 97 %.

Structure WCF and temperature characteristics

Components

Volume of using

Coal

59-70 %

Water

29-40 %

Softener

1 %

Ignition temperature

450-650 0С

Burning temperature

950-1050 0С

The basic directions of scientific researches

  • Definition of initial quality influence raw materials on stability of characteristics WCF at storage and transportation;

  • Definition of rational values of firm component concentration for the maintenance of set top internal characteristics WCF prepared from coal of various marks;

  • Definition of coal grain-size distribution for maintenance of set concentration WCF, depending on quality of initial raw materials;

  • Definition of rational hydraulic parametres of transportation, depending on structure WCF, for maintenance of heat-generating installations requirement in fuel.

East-Ukrainian Volodymyr Dahl National University

Мolodizhny bl., 20a, Luhansk, Ukraine, 91034,

tel./fax +380 (642) 41-84-07, e-mail onti@snu.edu.ua

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