scholarly journals ORNL rod bundle heat transfer test data. Volume 1. ORNL small break LOCA test series: experimental data report. [PWR]

1982 ◽  
Author(s):  
T. M. Anklam ◽  
D. F. Hunt ◽  
M. S. Thompson ◽  
D. K. Felde ◽  
A. Sutton ◽  
...  
1982 ◽  
Author(s):  
T. M. Anklam ◽  
D. F. Hunt ◽  
D. K. Felde ◽  
M. S. Thompson ◽  
A. G. Sutton ◽  
...  

Author(s):  
Han Wang ◽  
Qincheng Bi ◽  
Linchuan Wang ◽  
Haicai Lv ◽  
Laurence K. H. Leung

An experiment has recently been performed at Xi’an Jiaotong University to study the wall temperature and pressure drop at supercritical pressures with upward flow of water inside a 2×2 rod bundle. A fuel-assembly simulator with four heated rods was installed inside a square channel with rounded corner. The outer diameter of each heated rod is 8 mm with an effective heated length of 600 mm. Experimental parameters covered the pressure of 23–28 MPa, mass flux of 350–1000 kg/m2s and heat flux on the rod surface of 200–1000 kW/m2. According to the experimental data, it was found that the circumferential wall temperature distribution of a heated rod is not uniform. The temperature difference between the maximum and the minimum varies with heat flux and/or mass flux. Heat transfer characteristics of supercritical water in bundle were discussed with respect to various heat fluxes. The effect of heat flux on heat transfer in rod bundles is similar with that in tubes or annuli. In addition, flow resistance reflected in the form of pressure loss has also been studied. Experimental results showed that the total pressure drop increases with bulk enthalpy and mass flux. Four heat transfer correlations developed for supercritical pressures water were compared with the present test data. Predictions of Jackson correlation agrees closely with the experimental data.


Kerntechnik ◽  
2016 ◽  
Vol 81 (3) ◽  
pp. 214-220 ◽  
Author(s):  
M. P. Riley ◽  
L. Mohanta ◽  
D. J. Miller ◽  
F. B. Cheung ◽  
S. M. Bajorek ◽  
...  

Author(s):  
Guoping Xu ◽  
Henry Jung

Several analytical models to predict heat transfer and pressure drop performance for parallel plate fin heat sinks are available in the literature. However, the experimental data to validate these models are very limited especially for high fin density heat sinks. In this paper, a new method is proposed to predict thermal performance in both laminar flow and turbulent flow. This method and other models selected from the literature have been compared to the test data. Experimental investigations were conducted with fully-duct flow for parallel plate fin heat sinks to measure overall thermal resistance and pressure drop. Three heat sinks with different fin materials and fin configurations are tested. We conclude by recommending some of the analytical methods for engineering applications by comparing the test data with predictions.


Author(s):  
Nicoleta M. Ene ◽  
Florin Dimofte ◽  
Theo G. Keith ◽  
Robert F. Handschuh

An advanced three-dimensional model is developed to compute the temperature distribution in a wave journal bearing. The analysis takes into account the heat transfer between the film and both the shaft and the bush. The theoretical results are validated by comparison with experimental data.


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