Xây dựng mô hình thiết bị sấy bằng bơm nhiệt và nghiên cứu thực nghiệm sấy nông sản ở nhiệt độ thấp

Xây dựng mô hình thiết bị sấy bằng bơm nhiệt và nghiên cứu thực nghiệm sấy nông sản ở nhiệt độ thấp

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W †6 } / +&0 & & * l 46 `c :E L o [Y λ = λ # + λ + λ ## + λ ` + λ Z H - # r # + - r r = -# + - = -# + - m r# + r r r# r + :/ m ' `15 +B &0 `2 P # ] : % ls ‹ ssm o λ# o 41 } λ λ ## o λ `o • C o-# - + λ V6 - # r # + - r - r + - r = # # r# + r r : -7 = Z H L -= l X' >T U H 41 } o Q & & & :/ `c E +& &V H H % ^ L `3 `15 41 } & & $ B `c E ? :/ 4~ + o = −λ %0^$ % & 41 } / + ∂ ∂ < -f [Y G ] ls ‹ sGm C X' >T V6 !" #$ % &' %# < c J C < % # v >8 4U? 4*: 41 + a + rs q G x E Ô s " " WGy G, z" " xy sG" " xy x !s y xˆ ! s," " xz G Gx" " xz x !"" " xz x !G y !z" " xz z " !" \ v I; - " ! " - - " - Gˆ y !s ! x " r45 - r • Š ) " (x G(" ˆx (y y ys" ˆx !G y" ! x( y " zs yy "G z(" ˆ! !G y" x " !, G( (ˆ ,!" ˆz y" y " !s ss x, ˆ!" ˆ, ˆ(" ˆy !" !! !" ‚ Gx ˆ" x, ˆ x! y s (y ,x !G ys y" ( xy xˆ y" s sG " G, G" C‚WZ s"" ˆ" ," (" z" y" x" !" G" s" " z" ˆ" sG" sy" s," Gs" Gx" G(" !"" !!" !z" !" #$ % &' bb # v >8 4*: 41 + + rs q s" E ¤ s " \ " - " z" !G " " - - x " r45 - ‚ r • Š ) G, ( !y ! 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G" s" " " !" z" ˆ" sG" sy" s," Gs" Gx" G(" !"" !" #$ % &' bh c J C < J C < -; • :A - E $ 4*: o 4*: + ' # v >8 41 + K sG" \ 4*: +&0 F G" \ ;wo ‘ E5 K 4*: G" \ Gx E Ô \ _9 Y A > s " - " " - - " - " r45 !" r Š ˆ" (y " !s z z" " xy !s y xˆ y x! y s (y ,x !G ˆy s(" sG" " xy !G y y" G xx s sG (y y ˆz !G" sz" " xy , !G y y" x xy " ,( z, x, ˆz !," Gx" " xz z y" ! x( y " x( xs zG ˆz xˆ" !G" " xz z !G ( y" x " !x sˆ Gˆ ˆz zˆ" !z" " xz z !G ( y" y xˆ y " !s ss x, ˆz (x" x"" " xz z !G y y" ! y" " Gˆ y !, ˆ( (ˆ" xx" " xz z !G y y" y y" " G, G" ˆz ,y" xˆ Gx • ) - ‚ Ws( !! !G x " v I; !" ! C‚WZ s"" ˆ" ," (" z" y" x" !" G" s" " " !" z" ˆ" sG" sz" G"" Gx" G," !G" !z" x"" xx" !" #$ % &' d# # v >8 4*: +&0 41 + y, E Ô s ! ‚ • ) r Š " " " WG" !" !" !G y Gˆ y ," ,ˆ ,z (z " z" " xy !G x( y !ˆ x yx ,( "y ˆz xG" sG" " xy y !G ˆ x, x x" y ! xG ,G ,s ˆ! ,"" sz" " xy y !! x x, x x" y ! "s ," x( ˆy ˆs" Gx" " xy y !! , x, z xG G !s (x yy ˆˆ sss" !G" " xy y !G ˆ x, x! s zˆ zy Gs ˆ( s!!" !z" " xy y !G y x, x! s xx yˆ s( ˆx sx(" xx" " xy y !G G x( ˆ x! y s "ˆ xz "z ˆy s(ˆ" x," " xy y !G ( x, s xx " ˆz !, (y ˆy sˆy" yz" " xy !G y x, s xy y " (" sz "" ˆz GGx" z"" " xy !G ! x( , xz y " zx , s! ˆy G!ˆ" zx" " xy !G G x( ˆ xz y " z" G "" ˆy Gyx" v I; - - - - " r45 " \ " x - C‚WZ !" #$ % &' d% - E $ 4*: % ; +& 4*: + ' K sG" \ F s" \ E5 K 4*: G" \ # v >8 4*: 41 + +&0 Gx E Ô \ s " - " - " - ! " - " r45 Š ˆ" (( z" " xy x Gˆ x x, ˆ x! y s yG ,G yG ˆ ! !"" sG" " xy , !" ! xˆ G s ", (x yˆ ˆ ! z,y s," " xy , !" , xˆ ! xz y " zz y, xG ˆ ˆ ,G" Gx" " xy , !s , xˆ ( " xs !! "( ˆ ( s"G" !"" " xy , xˆ G x, G " !G sx Gy ˆ y sG!" !z" " xy , !s s xˆ G x, y " Gˆ y !, ˆz sx(" !ˆ" " xy , " G, G" ˆ( sy," !s xˆ xx x, x, y Gx r Ws( !s Gˆ • ) - ‚ " v I; !s z G, y !G ! x " C‚WZ s"" ˆ" ," (" z" y" x" !" 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