방해판이 부착된 교반조의 교반소요동력의 추정

이영세; 이수각; 김종식

HWAHAK KONGHAK, Vol.33, No.1, 46-55, February, 1995

Export Citation

방해판이 부착된 교반조의 교반소요동력의 추정

Estimation of Power Input in a Baffled Agitated Vessel

이영세, 이수각, 김종식

초록

본 연구에서는 난류역 완전방해판 조건하의 교반소요동력을 기왕의 연구자의 결과와 본 실험결과와의 비교, 검토를 행하였으며 양호한 동력상관식을 제시한다. N_P=7.09(n_p)^0.7(b/d)(H/D)^0.18 n_p^0.7(b/d)<1 N_P=7.09{(n_p)^0.7(b/d)}^0.7(H/D)^0.18 n_p^0.7(b/d)≥1 또한 교반 impeller 부착위치에 따른 동력수의 추산식을 제시한다. N_p(min)=N_p(max)-2.47n_p^1.32(b/d)^1.71 n_p^1.32(b/d)^1.71≤2.87 N_p(min)=N_p(max)-7.06 n_p^1.32(b/d)^1.71>2.87

In the present study, power input in the totally baffled agitated vessels was compared systematically in connection with several previous studies and adequate power input correlation was found to be: N_P=7.09(n_p)^0.7(b/d)(H/D)^0.18 n_p^0.7(b/d)<1 N_P=7.09{(n_p)^0.7(b/d)}^0.7(H/D)^0.18 n_p^0.7(b/d)≥1 Power number correlation was also formulated experimentally, which was dependent upon the position of the impeller in the stirred vessels, as follows: N_p(min)=N_p(max)-2.47n_p^1.32(b/d)^1.71 n_p^1.32(b/d)^1.71≤2.87 N_p(min)=N_p(max)-7.06 n_p^1.32(b/d)^1.71>2.87

[References]

Nagata S, "Mixing Principles and Applications," Koudansha Ltd. (1975)
Bates RL, Fondy PL, Corpstein RR, Ind. Eng. Chem. Process Des. Dev., 2, 310 (1963)
Takeda K, Hoshino T, Taguchi H, Hujii T, Kag. Kog., 32, 376 (1968)
Komori S, Murakami Y, AIChE J., 34, 932 (1988)
Rushton JH, Costich EW, Everett HJ, Chem. Eng. Prog., 46, 394 (1950)
Takeda K, Hoshino K, Shimizu S, Nishihata T, Kag. Kog., 32, 369 (1968)
Nishigawa M, Hashimoto S, Hashimoto K, Kag. Kog. Ronbunshu, 5, 59 (1979)
Mochizuki M, Sato K, Kag. Kog. Ronbunshu, 10, 49 (1984)
Sasakura H, Kato A, Tamamura S, Ooi S, Kag. Kog. Ronbunshu, 4, 595 (1978)
Sano Y, Usui H, J. Chem. Eng. Jpn., 18, 47 (1985)
Bates RL, Ind. Eng. Chem., 5, 1245 (1959)

[Referenced By]

[1] Nagata S, "Mixing Principles and Applications," Koudansha Ltd. (1975)

[2] Bates RL, Fondy PL, Corpstein RR, Ind. Eng. Chem. Process Des. Dev., 2, 310 (1963)

[3] Takeda K, Hoshino T, Taguchi H, Hujii T, Kag. Kog., 32, 376 (1968)

[4] Komori S, Murakami Y, AIChE J., 34, 932 (1988)

[5] Rushton JH, Costich EW, Everett HJ, Chem. Eng. Prog., 46, 394 (1950)

[6] Takeda K, Hoshino K, Shimizu S, Nishihata T, Kag. Kog., 32, 369 (1968)

[7] Nishigawa M, Hashimoto S, Hashimoto K, Kag. Kog. Ronbunshu, 5, 59 (1979)

[8] Mochizuki M, Sato K, Kag. Kog. Ronbunshu, 10, 49 (1984)

[9] Sasakura H, Kato A, Tamamura S, Ooi S, Kag. Kog. Ronbunshu, 4, 595 (1978)

[10] Sano Y, Usui H, J. Chem. Eng. Jpn., 18, 47 (1985)

[11] Bates RL, Ind. Eng. Chem., 5, 1245 (1959)