Transcription of 第7章 熱交換器 八戸工業高等専門学校伝熱工学
1 1 ( ( heat Exchanger) 1 ( ( 2 2 ( ( 3 ( ( 4 3 ( ( 5 ( ( 6 4 ( ( 7 ( ( 2 8 5 ( ( 1 A B)))))))))))))))))
2 9 ( ( 2 A B A,B 10 6 ( ( 11 720 ( ( 3 A B 12 7 ( ( 3 13 Dukovany ( (a)(double-tube type heat exchangers) (b)(plate type heat exchangers) (c)(shell-and-tube type heat exchangers) (d)(cross-fin type heat exchangers) ()(thth)14(e)(compact heat exchangers) 8 ( 15 ( 16 9 ( (baffle)))))))))))))
3 17 ( 18 10 ( 31 31 m2500 1000 m 19 ( (parallel flow)20 (parallel flow) (counter flow) (cross flow) 11 ( ( T()Tx1 TqhT 2 2(W/(mK))K Q 1T2 TRLkA2T0 LxkhTcT1hA1hAhRcRcT,hhTh ,ccTh A 21kAhhAchA (K W)tR ( 40 C20 C2200 W/m K220 W/m K1 mm 204 W/(m K) 22 12 ( ( T()))))))))
4 Tx1 TqhT Q 1T2 TRLkA2T0 LxkhTcT1hA1hAhRcRcT,hhTh ,ccTh 23kAhhAchA ( ( 10 08 24 AfA 13 ( ( 25 ( ,hhccmcmc 26 14 ( 27hh h1h2cc c2c1()()QmcT T mcT T [kg/s] [J/(kg K)] W ( 28 15 ( min()mc 29 , Number of heat -Transfer Unit) ( NTU i()/()Rmc mc 0cR 1cR minmax()/()))))))))
5 CRmc mcNTU 1cR 30 16 ( 300 C250 kg/s1200 J/(kg K) 20 kg/s4200 J/(kg K) 31 250 W/(m K) ( 5 =300hiT C250hoT C= 360 W/Khhmc 20ciT C= 420 W/Kccmc cicc3217 ( KA 33 2 = 50 W/(m K)K ( (scale) (fouling) (fouling factor) (fouling factor) irorT()Tx1T2 TqxkhTcT,hhTh ,ccTh 34 m2K/W Q 1T2 TRLkA0 LxhTcT1hhA1chAhRcR 18 ( 7 35)))))
