Loading...
Please wait, while we are loading the content...
Similar Documents
A general heat transfer correlation for non-boiling gas-liquid flow with different flow patterns in horizontal pipes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kim, Jae-Yong Ghajar, Afshin J. |
| Copyright Year | 2006 |
| Abstract | A general heat transfer correlation for non-boiling gas-liquid flow with different flow patterns in horizontal pipes is proposed. In order to overcome the effect of flow pattern on heat transfer, a flow pattern factor (effective wetted-perimeter) is developed and introduced into our proposed correlation. To verify the correlation, local heat transfer coefficients and flow parameters were measured for air-water flow in a pipe in the horizontal position with different flow patterns. The test section was a 27.9 mm ID stainless steel pipe with a length to diameter ratio of 100. A total of 114 data points were taken by carefully coordinating the liquid and gas superficial Reynolds number combinations. The heat transfer data were measured under a uniform wall heat flux boundary condition ranging from about 3000 W/m 2 to 10,600 W/m 2 . The super- ficial Reynolds numbers ranged from about 820 to 26,000 for water and from about 560 to 48,000 for air. These experi- mental data including different flow patterns were successfully correlated by the proposed general two-phase heat transfer correlation with an overall mean deviation of 5.5%, a standard deviation of 11.7%, and a deviation range of - 18.3% to 37.0%. Ninety three percent (93%) of the data were predicted within ±20% deviation. - 2006 Elsevier Ltd. All rights reserved. |
| Starting Page | 447 |
| Ending Page | 465 |
| Page Count | 19 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.ijmultiphaseflow.2006.01.002 |
| Volume Number | 32 |
| Alternate Webpage(s) | https://aghajar.okstate.edu/sites/default/files/pub-pdfs/Kim%20&%20Ghajar_IJMF_2006.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.ijmultiphaseflow.2006.01.002 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
