Abstract
In this study, the distribution characteristics of diffusers with various shapes that are installed in an open-type thermal storage system are numerically investigated. Four diffusers are designed to distribute a working fluid evenly through the holes on bifurcated pipes. Three-dimensional steady simulations of incompressible laminar flow are conducted using commercial software (ANSYS-FLUENT). The simulation results show that both the bidirectional header-type diffuser and the H-type diffuser distribute the working fluid evenly whereas both the unidirectional and the bidirectional diffusers distribute the working fluid unevenly. The results also show that the H-type diffuser requires a higher head of pump than the bidirectional header-type diffuser. Therefore, the bidirectional header-type diffuser is recommended for use because it enables even distribution of the working fluid and requires a low head of pump.
| Original language | English |
|---|---|
| Pages (from-to) | 789-795 |
| Number of pages | 7 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, B |
| Volume | 38 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2014 |
Keywords
- Diffuser shape
- Distribution characteristics
- Head of pump
- Open-type thermal storage system