Plugging of Parallel-Tube Devices with Fluid FoodsSteven Brandon C1 and Paul Dawson L2*
- *Corresponding Author:
- Paul Dawson L
Department of Food Science and Human Nutrition
Clemson University, Clemson, SC 29634, USA
Received April 19, 2016; Accepted May 11, 2016; Published May 17, 2016
Citation: Steven Brandon C, Paul Dawson L (2016) Plugging of Parallel-Tube Devices with Fluid Foods. J Food Process Technol 7: 587. doi:10.4172/2157-7110.1000587
Copyright: © 2016 Steven Brandon C, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Plugging often occurs when fluid foods are processed in parallel-tube devices (e.g., tubular heat exchangers and membrane filtration modules, especially when fluids are concentrated). Plugging reduces productivity by reducing performance and causing downtime to remove the plug. The cause of plugging is explained here for the first time and a means of avoiding it is described. Plugging rarely occurs during normal operation while fluid food is being pumped through the tubes, but rather when the tubes are flushed with water, e.g., prior to routine cleaning. The study identified two prerequisites for plugging to occur: tubes must have unequal resistances to flow and the fluid food must possess a yield stress that exceeds a value which depends on the device geometry.