Heat exchanger with enhanced shell-side heat transfer
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This post was last edited by colinzh on 2010-11-25 at 14:58. We have a project where the fluid has high viscosity and a relatively high freezing point, around 50°C. To prevent the material from freezing inside the pipes, it is always allowed to flow through the shell side. The problem is that the process imposes limitations on the volume of the shell side of the heat exchanger; to prevent excessive accumulation of material within the heat exchanger, compact heat exchangers are desired by employing shell side enhancement methods. After researching, I found that heat exchange equipment with spiral baffle plates is very suitable. But there are many problems with the design. The heat transfer coefficient calculation for this type of heat exchanger should be different from that of ordinary baffle heat exchangers, right? Especially the shell-side equivalent diameter term. Are spiral baffle heat exchangers widely used in industry? Are there any relevant industry standards? I hope fellow sailors can help offer some suggestions.
In engineering applications, there is almost no difference between a single arch and a spiral!
I read in various sources that spiral baffle plates can enhance heat exchange, and they also result in low pressure drops. Is there then no difference in their areas of application? The spiral baffle is difficult to process
Is the heat transfer rate high? If it is, given the freezing point you mentioned, I advise you not to use a spiral baffle heat exchanger.
Spiral baffle heat exchangers should have a similar capacity to handle material solidification as regular baffle heat exchangers, or even better; this shouldn’t be a problem
Our company is capable of both the design and manufacturing of spiral baffle heat exchangers; we offer a full range of services ranging from process design to mechanical design and manufacturing, with proven experience in this area. Such exchangers indeed deliver excellent results for particularly specific types of media.