Evaporator

[mohi]

In an evaporator, how does the velocity of the liquid in tubes affect the boiling point?
Does the velocity of a liquid affect its boiling point?

[nanealbert25]

The velocity of a liquid in tubes does not directly affect its boiling point. Boiling point is a characteristic property of a liquid at a given pressure, and it remains constant as long as the pressure remains constant.

However, the velocity of a liquid in an evaporator can indirectly affect the boiling point by influencing the heat transfer rate. When a liquid is flowing at a high velocity through a tube, it can cause turbulence in the flow, which enhances heat transfer between the liquid and the surrounding heating surface. This can increase the rate of evaporation and reduce the time required to reach boiling point.

On the other hand, if the liquid is flowing too slowly, it can form a layer of insulating vapor bubbles around the heating surface, which reduces heat transfer and can increase the time required to reach boiling point. Therefore, optimizing the flow rate of the liquid in an evaporator can help to improve the efficiency of the process and reduce the energy required to reach the desired boiling point