Plate heat exchanger
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How to select the heat transfer coefficient for plate heat exchangers? What is the range of values for water-to-water heat exchange? What is the range of values for soda heat exchange?
The cost is around 3,000–5,000; it generally doesn’t exceed 6,000； Soda around 1500
It seems that the heat transfer coefficient for soda is higher!
It won’t get any higher; the physical properties of gases are completely different from those of solids, and the difference is quite significant. It is simply because there is a change in latent heat during the condensation of steam, resulting in a strong driving force; hence, the heat transfer coefficient for steam condensation heat exchange is also relatively high.
The heat transfer coefficient is only a reference for selection; ultimately, the flow velocity between the plates and the pressure loss must also be taken into account. I can go to my profile and teach you on Penguin
Not necessarily. There are very limited models of plate heat exchangers. Even for water-to-water applications, when the flow rate is low, the flow velocity is low as well, and in many cases the heat transfer coefficient is quite small; there is no fixed range for it. However, 5000 can generally be considered a relatively high value. If you want to use this figure for estimation, around 3500 would be appropriate. For the specific calculations, it is still necessary to take into account factors such as pressure drop and flow rate. In the case of evaporation, it is highly dependent on the evaporation temperature; temperature affects viscosity, as does the concentration of the material. As an estimate, it could be a 50% sugar solution at 95 degrees. K value: 3500, 60 degrees, 50%, around 1100.
Your coefficient is way too high. No consideration was given to dirt at all, right?
I heard before that Alpha and the others can reach 6000