Abstract
The dynamic behavior of heat exchangers, with continuous helical baffles, using water and oil as the heat exchanging medium, is being numerically predicted by applying the finite difference (FDM) analyzing method. A concept of parallel-flow and counter-flow in series connection, applicable for heat exchangers with single shell side pass and multi tube side passes, are presented, and check-validated by experimental data, which prove the mathematical model's resonableness. The influence of axial heat conduction, of the heat exchanger tube walls, as well as their thermal capacity, on the heat exchanger's dynamic behavior are being explored, which may serve as a reference for studies concerning dynamic behavior of shell type heat exchangers.
| Original language | English |
|---|---|
| Pages (from-to) | 573-578 |
| Number of pages | 6 |
| Journal | Dongli Gongcheng/Power Engineering |
| Volume | 27 |
| Issue number | 4 |
| State | Published - Aug 2007 |
Keywords
- Dynamic behavior
- Engineering thermophysics
- Finite difference method
- Flow disturbance
- Heat exchanger with continuous helical baffle plates
- Numerical prediction