POOL BOILING HEAT-TRANSFER .2. THICKNESS OF LIQUID MACROLAYER FORMED BENEATH VAPOR MASSES

被引:30
作者
KUMADA, T
SAKASHITA, H
机构
[1] Department of Nuclear Engineering, Faculty of Engineering, Hokkaido University, Kita-ku, Sapporo, 060, North 13
关键词
D O I
10.1016/0017-9310(94)00225-K
中图分类号
O414.1 [热力学];
学科分类号
摘要
The macrolayer thickness was determined on the basis of the energy balance relation q(CHF) = delta(1) rho(1)H(fg)f, which was derived from the dryout model for liquids, proposed by Katto and coworkers. The critical heat flux (CHF) and the detachment frequency were measured on 20 mm diameter horizontal and vertical heated disks at pressures of 0.03-0.4 MPa with water, ethanol, methanol and acetone. Two semi-empirical correlations for the macrolayer thickness were derived by dimensional analysis of a model in which primary or coalesced bubbles form a macrolayer. The proposed correlations arrange the data of macrolayer thickness obtained from CHF measurements well.
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页码:979 / 987
页数:9
相关论文
共 22 条
[1]   HEAT-TRANSFER IN NUCLEATE POOL BOILING AT HIGH HEAT-FLUX [J].
BHAT, AM ;
PRAKASH, R ;
SAINI, JS .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1983, 26 (06) :833-840
[2]  
BHAT AM, 1986, INT J HEAT MASS TRAN, V26, P735
[3]  
COOPER MG, 1978, 6TH P INT HEAT TRANS, V1, P115
[4]  
GAERTNER RF, 1965, ASME, V87, P17
[5]  
GRIGORIEV VA, 1976, INT S HEAT MASS T PB, V18, P215
[6]  
HARAMURA Y, 1986, T JSME, V49, P1919
[7]  
HONDA H, 1972, T JSME, V34, P177
[8]  
IIDA Y, 1970, 4TH P INT HEAT TRANS, V5, P1
[9]  
Katto Y., 1976, Heat Transfer - Japanese Research, V5, P45
[10]  
Katto Y., 1971, T JSME, V37, P535