How can we eliminate the creation of bubbles at hot water flows in tubes with variable length?

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shah mir Ahmed

One of the reason is low pressure head at inlet side of instrument, due to losses of pressure while flow , vapours or bubbles formation enhances. Which can tolerated by increasing pressure at inlet side or decreasing temperature, while keeping in mind the operating temp , pressure conditions of system

Basil Ali

and how it effected with increasing the flow rate of WF

Swapnil Vanjara

May bubble formation affaected by turbulance of the flow

i am not sure for case of ETC ,, well for many other Fluid flow equipments turbulence pattern results in more bubble format ions.'

Well you can not increase flow rate and pressure to large extent in ETC as tubes may burst.