螺旋折流板换热器的开发与研究Ⅰ

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2024-09-11 21:32 | 0 | 0 | 页数: 5 | 大小: 53 KB

1 8   3       V o l . 1 8   N o . 3 1 9 9 8 9 J O U R N A L   O F   F U S H U N   P E T R O L E U M   I N S T I T U T E     S e p . 1 9 9 8 ( )           ( , 1 1 3 0 0 1 )     , , , , , 1 . 5 , , , 广   ;   ;     T Q 0 5 1 . 5 1   , , , , 1 5 0 0 m m , 1 0 Φ 1 9 m m × 2 m m , Φ 1 5 9 m m × 6 m m , , 1 2   2 . 1   6 . 1 m 3 / h , , : 4 0 , ρ = 8 7 5 . 6 k g / m 3 ;   c p = 1 . 6 k J / ( k g · K ) λ = 0 . 1 2 8 5 6 W / ( m · K ) ;   μ = 0 . 0 5 5 7 7 P a · s : 8 6 , ρ = 9 6 7 . 9 k g / m 3 ;   c p = 4 . 2 0 3 k J / ( k g · K ) λ = 6 7 . 8 × 1 0 - 2 W / ( m · K ) ;   μ = 0 . 3 3 1 5 × 1 0 - 3 P a · s ;     P r = 2 . 0 6 4 :     R e = d u ρ μ = 4 × 9 6 7 . 9 × 6 . 1 0 7 π × 5 × 3 6 0 0 × 0 . 3 3 × 1 0 - 3 × 0 . 0 1 5 = 8 4 5 1 0 :     α i = 0 . 0 2 3 × 6 7 . 8 × 1 0 - 2 0 . 0 1 5 ( 8 4 5 1 0 ) 0 . 8 ( 2 . 0 6 4 ) 0 . 3 = 1 1 2 9 3 W / ( m 2 · K ) 稿 : 1 9 9 8 - 0 4 - 0 0 : , 5 1 , © 1994-2006 China Academic Journal Electronic Publishing House. All rights reserved. http://www.cnki.net
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1   1 ; 2 ; 3 ; 4 5 6 ; 7 8 9 ; 1 0 1 1 1 2 1 3 ; 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 ; 2 2 2 3 R e H f     u 1 = v / 3 6 0 0 π 4 × 0 . 0 5 4 2 = 0 . 1 2 1 4 v     R e 1 = d 1 u 1 ρ μ = 0 . 0 5 4 × 8 7 5 . 6 0 . 0 5 5 7 7 × 0 . 1 2 1 4 v = 1 0 2 . 9 2 v     R e 2 = d 2 u 2 ρ μ = 0 . 0 6 5 × 8 7 5 . 6 0 . 0 5 5 7 7 × 0 . 0 8 3 8 v = 8 5 . 5 2 v     H f 1 = λ 1 2 . 7 0 . 0 5 4 u 2 1 2 × 8 7 5 . 6 = 2 2 8 9 0 λ 1 u 2 1     H f 2 = λ 2 3 . 7 0 . 0 6 5 u 2 2 2 × 8 7 5 . 6 = 2 4 9 2 0 λ 2 u 2 2     u 2 = v / 3 6 0 0 π 4 × 0 . 0 6 5 2 = 0 . 0 8 3 8 v     λ = 6 4 / R e : v , m 3 / h 1 2 . 2   6 . 1 m 3 / h , , , 2 3                                   1 8 © 1994-2006 China Academic Journal Electronic Publishing House. All rights reserved. http://www.cnki.net
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