Abstract
Heat exchangers with microchannels (hydraulic diameter less than 1 mm) are attracting significant attention lately. Performance of these heat exchangers mostly evaporators is greatly affected by imperfect distribution of a two-phase fluid to each channel. This paper presents an overview of the issue, showing basic options to evenly distribute single and two-phase fluid and the methods to determine maldistribution. Special attention is given to describing two-phase regimes in an adiabatic horizontal header with R134a as a fluid, describing a two-phase map with area of good distribution.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 61-68 |
| Number of pages | 8 |
| Journal | Heat Transfer Engineering |
| Volume | 25 |
| Issue number | 3 |
| DOIs | |
| State | Published - Apr 2004 |
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes