2 9 1234 ...
11 20 81

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  1. #11


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  2. #12

    Jun 2008
    Glyfada, , Greece.
    :
    3,101
    quote:Originally posted by mechatron

    , buffer 500 , 12 kW , , ..

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    ! 7 - , fatal errors!!
    , plastics! ! !
    :
    80 . 32 . ( 8 8) 7 . 180 .. 2500 Kg/m 450.000 ! 7 ' , : Q = 450.000 X 7 X 0,2 = 630.000 Kcal ~730 kWh. :
    . !
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    630.000 Kcal 4 4 . 4 630.000 Kcal 730.000 Wh 180.000 Wh. 1 .. 1600 Wh 110 .. 110 ..
    ; , !

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  3. #13

    Mar 2009
    Deventer, The Netherlands
    :
    Lead Consultant
    585
    .. ..

    ..

    32 7 = 224 ..

    2W/mk ,

    Q=A*/(d/)=224*7/(0,8/2)= 3,92kW/

    24 3,92*24=94kWh/

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  4. #14

    Mar 2009
    Deventer, The Netherlands
    :
    Lead Consultant
    585
    ..

    ?

    8 x 8 x 7 = 448 .. 1000J/KgK & 1,2 Kg/m3 , 448 x 1,2 x 1 x 7/3600= 1,045 kW... , mm ( , :

    Q=A*/(d/)=224*7/((0,8/2)+1/11)= 3,2kW/

    11 W/m2K

    , 7 4 , 1,75 .. 3,5 ..

    1,75 .

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    , 1,75 , 1,75 , ?

    448 x 1,2 x 1 x 1,75 x 24 /3600= 6,3 kWh/.. ?

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  5. #15

    Dec 2007
    , , Greece.
    :
    4,417
    , . , , : 1.75 , ; ;


  6. #16

    Mar 2009
    Deventer, The Netherlands
    :
    Lead Consultant
    585
    ..

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  7. #17

    Jun 2008
    Glyfada, , Greece.
    :
    3,101
    quote:
    Q=A*/(d/)=224*7/(0,8/2)= 3,92kW/
    Q=A*/(d/)=224*7/((0,8/2)+1/11)= 3,2kW/
    ! forum

    :
    : ( ) ! ; forum

    :
    .
    , . , ( ) ....

    layer layers ( films 1/7 mhK/Kcal & 1/20 mhK/Kcal ) R mhK/Kcal. ( 12, 0) =12 Q /R. . layers . .
    :
    , 12 0 =12
    :
    1. (=1,2 Kcal/mhK) = d/ = 0,8/1,2 = 0,666 mhK/Kcal
    2. 4 . ( = 0,75 Kcal/mhK) = 0,04/0,75 = 0,053 mhK/Kcal
    3. , convection trans.: 1/7 + 1/20 = 0,2 mhK/Kcal

    : R = 0,666 + 0,053 + 0,2 = 0,92 mhK/Kcal
    : Q = / R = 32712/0,92 = 2920 Kcal/h 13 Kcal/hm.

    film & :
    1. film: 13 = 7 (12 - 1) ==> 1 = 10,14
    2. : 13 = 0,75/0,02 (10,14 - 2) ==> 2 = 9,8

    . . 0. :
    13 = 1,2/0,8 (9,8 - 3) ==> 3 = 1,13

    (9,8+1,13)/2 = ~5,5

    , 7. 5,5. ! 110 .. 85 ..
    ;



  8. #18

    Mar 2009
    Deventer, The Netherlands
    :
    Lead Consultant
    585
    quote:Originally posted by Pirate
    ! forum


    !

    ,

    ?

    ..

    Q=A*/(d/)=

    8*7*4= =224
    7 ..
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    http://www.monachos.gr/forum/topic.asp?TOPIC_ID=3149
    ..

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    , 3cm , 3 cm , ?

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  9. #19

    Dec 2007
    , , Greece.
    :
    4,417
    , :
    quote: , 3cm , 3 cm , ?
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  10. #20


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