What determines the flow velocity of the shell fluid?
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In HTRI simulations, there are two flow velocities: one is the velocity of the cross-flow and the other is the velocity of the window flow. What parameters affect these two flow velocities? What kind of impact is there? I’d like to ask everyone. This post was last edited by suiran983527 on 2009-3-11 09:06.]
Firstly, the properties of the fluid itself must have some influence on its flow velocity. Within a heat exchanger, the force that drives the fluid to flow is the pressure difference across the heat exchanger; therefore, pressure drop should be the key factor affecting flow velocity
Flow velocity of cross-flow: determined by the shell diameter, the number of tubes, and the gap； Flow rate of the window flow: determined by the area of the baffle openings and the exhaust pipes ； The general design principle is to keep the two basically consistent in order to reduce the pressure drop caused by changes in flow velocity.