Circulation cleaning of a plate heat exchanger fouled by tomato juice
III. The effect of fluid flow rate on cleaning efficiency
Article first published online: 28 JUN 2007
International Journal of Food Science & Technology
Volume 17, Issue 6, pages 745–752, December 1982
How to Cite
JACKSON, A. T. and LOW, W. M. (1982), Circulation cleaning of a plate heat exchanger fouled by tomato juice. International Journal of Food Science & Technology, 17: 745–752. doi: 10.1111/j.1365-2621.1982.tb00234.x
- Issue published online: 28 JUN 2007
- Article first published online: 28 JUN 2007
- (Received 1 March 1982)
The effect of a change in flow rate of a 2% w/w caustic soda solution on the circulation cleaning of a plate heat exchanger fouled with diluted tomato paste has been investigated at a temperature of 90°C and fixed circulation cleaning times of 5 and 10 min.
For both circulation cleaning times a transition point was noted in the range 2.75–2.86 1/min (Reynolds number range 6600–6300, shear stress range 0.77–0.82 N/m2). Below the transition point the effect of flow rate on cleaning efficiency was minimal, but at flow rates above the transition point there was a marked increase in cleaning efficiency as the flow rate (and hence shear stress at the surface) increased.