What type of heat exchanger should be chosen when the temperature difference is less than 10 degrees? Urgent
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What type of heat exchanger should be chosen when the temperature difference is less than 10 degrees? Import/Export medium: Crude oil at 38 degrees, heated to 60 degrees; flow rate of 80 m3/h, pressure of 1 MPa. Heat source: Water at 70 degrees. What type of heat exchanger would be suitable in this case? Please give me some advice! This post was last edited by brookslee on 2008-1-28 10:31]
The choice of heat exchanger seems to have little to do with the temperature difference. To achieve a certain process outcome, it is of course necessary to conduct process calculations. Basically, any type of heat exchanger can achieve the same process results; it’s merely a matter of economic considerations to take into account
Plate heat exchangers should be used, as they will yield excellent results.
With a temperature difference of only 10°C, both coiled-tube and plate heat exchangers are quite suitable
The choice of heat exchanger is certainly related to the temperature difference; when the temperature difference is small, it is advisable to use one with a higher K value, as otherwise a larger heat exchange area would be uneconomical. For crude oil with high viscosity, plate heat exchangers may not be suitable, and shell-and-tube heat exchangers are recommended.
With a small temperature difference, the key is to improve heat exchange efficiency. I recommend using a spiral baffle tube heat exchanger, or a spiral tube type will also work.
Selecting or designing a heat exchanger generally involves considering the inlet and outlet temperatures of the material as well as the temperature of the heat transfer medium. Since the temperature of the hot water is 70°C, which is higher than the 60°C temperature of the material, it is possible to design such a heat exchanger; however, this will result in an increased heat transfer area. Plate-type or shell-and-tube types can be considered for this purpose, and design software can be used to make the selection. Safety factors must also be taken into account when dealing with crude oil.
Brother, could you be more specific? :handshake