Abstract
A heat exchanger with one shell pass and any number of tube passes is analyzed in an operation in which the shell-side fluid is unmixed over the shell cross-section. A relation is derived between the overall effectiveness of the exchanger and the effectiveness of the segregated tube passes, in parallel flow or in counterflow. Comparison of performance of the unmixed mode with published data on mixed mode, shows the effectiveness in the unmixed exchanger to be a few percent higher The difference increases with the number of transfer units. It is shown in the unmixed operation, as it is known in the mixed mode, that the 1-3 and 1-5 exchangers with more counterflow passes out perform the exchangers arranged with an even number of tube passes.
| Original language | English |
|---|---|
| Pages (from-to) | 225-229 |
| Number of pages | 5 |
| Journal | American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD |
| Volume | 108 |
| State | Published - 1 Dec 1989 |
| Event | Heat Transfer Equipment Fundamentals, Design, Applications, and Operating Problems - Philadelphia, PA, USA Duration: 6 Aug 1989 → 9 Aug 1989 |
ASJC Scopus subject areas
- Mechanical Engineering
- Fluid Flow and Transfer Processes