I often see bustles on steam heaters, and that makes sense, because you want the steam to be distributed evenly. Also, as the steam is cooled and condensed in the heater, its velocity at the inlet can become very great.
I never see bustles on condensers and coolers, which use cold water to condense or cool gases.
Is it necessary, however, to put bustles on gas-gas heaters, where there is no condensation occuring? That is, there will not be a vacuum forming inside the heater to cause increased gas velocity, as the gas enters the vessel?
Is there a heuristic (rule of thumb) for the upper limit of gas velocity entering the shell side, before which a bustle is required?
Thanks!
I never see bustles on condensers and coolers, which use cold water to condense or cool gases.
Is it necessary, however, to put bustles on gas-gas heaters, where there is no condensation occuring? That is, there will not be a vacuum forming inside the heater to cause increased gas velocity, as the gas enters the vessel?
Is there a heuristic (rule of thumb) for the upper limit of gas velocity entering the shell side, before which a bustle is required?
Thanks!
