7 8 ... 5678
61 70 71

: 3000-45

  1. #61
    20.06.2005
    1,037
    27369

    " " EN (, )
    ( NCV - net () calorific value). ?

    "As fired basis" ( - ) - " ", .. , .

    , . , : EN?
    - ?

  2. #62
    02.06.2005
    Moscow
    1,954
    405

    , , , .
    Net (lower) calorific value
    NET "", "As fired basis" - " ".
    , .
    , :
    () 17 20
    (4100-4800)
    () 18% (), 3330 /
    ; 04.02.2010 11:50.

  3. #63
    20.06.2005
    1,037
    27369

    - NCV - ( ), HCV (GCV) higher (gross) calorific value - , .

    As fired basis - , " ". . As dry basis - , . , 20-12%, 17-25% .

    , , . "" 4510. - NCV , .
    ; 04.02.2010 13:27.
    - ?

  4. #64
    20.06.2005
    1,037
    27369

    , .

    Moisture in coal is expressed as % by weight. So the change in the moisture content changes the proportion of the other coal constituents and the Calorific Value.

    * As Received coal, is the coal received in the power plant premises. The payment to the coal companies are normally made based on the As Received coal properties.

    * As Fired coal is the coal entering the boiler system. The performance of the boiler and power plant is based on the As Fired coal properties.

    * Air Dried coal is what is used in the laboratory for analysis. This coal is dried in atmosphere and has the lowest amount of moisture. Laboratory results are reported as Air Dried coal properties.

    The difference between the above three conditions is the proportion of the Moisture. The Calorific Value and other coal constituents analysed in the laboratory on Air Dried basis is converted to As received or As Fired basis proportional to the moisture content.
    Related Links

    Read more: http://www.brighthub.com/engineering...#ixzz0eYzBlKLz
    ; 04.02.2010 13:54.
    - ?

  5. #65
    09.11.2005
    6,022
    285964

    "" " " , . .

    ( ) - - - 4%, - 7%.
    .
    , , , , .
    . .
    .

  6. #66
    17.03.2009
    2,182
    0

    .
    , , , , .
    . .
    .
    - , , , , . , , . - , - - , , - .

  7. #67
    09.11.2005
    6,022
    285964

    , . , .

  8. #68
    17.03.2009
    2,182
    0

    , . , .
    , , , .

  9. #69
    09.11.2005
    6,022
    285964

    , ?

  10. #70
    17.03.2009
    2,182
    0

    , ?
    , , , . - ? , 100 .

  1. : 7
    : 06.03.2022, 15:30
  2. : 33
    : 24.11.2013, 03:16
  3. : 0
    : 12.11.2009, 09:55
  4. : 0
    : 23.07.2009, 22:04

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