An outline of mathematical models that have been used to understand the behaviour of scraped surface heat exchangers is presented. In particular the problem of the wear of the blades is considered. A simple model, exploiting known behaviour of viscous flow in corners and in wedges, and accounting for the forces on the blade is derived and solutions generated. The results shows initial rapid wear but that the wear rate goes to zero.
|Number of pages||6|
|Publication status||Published - 7 Mar 2004|
|Event||International Congress on Engineering and Food - Montpellier, France|
Duration: 7 Mar 2004 → 11 Mar 2004
|Conference||International Congress on Engineering and Food|
|Abbreviated title||ICEF 9|
|Period||7/03/04 → 11/03/04|
- scraped surface heat exchangers
- viscous flow
- fluid analaysis
- fluid dynamics
Pyle, D. L., Sun, K. H., Lee, M. E. M., Please, C. P., Fitt, A. D., Wilson, S. K., Duffy, B. R., & Hall-Taylor, N. (2004). Effective scraping in a scraped surface heat exchanger: some fluid flow analysis. Paper presented at International Congress on Engineering and Food , Montpellier, France.