Steam generation

[lamonte]

Is there a calculation that adequately describes the " release area" or " disengagement area" necessary per boiler horsepower? My cursory investigation indicates a wide range of surface areas described depending on the device.

 

[btrueblood]

Do you mean the size of a safety relief valve for a boiler? Check ASME Boiler and Pressure Vessel code.

 

[rmw]

This, or something much like it was covered in a thread on this site some time ago. Do a search on this site.

rmw

 

[Latexman]

lamonte,

It should be related to, or the same thing as, the calculation on a flash tank to minimize entrainment of liquid droplets. If memory serves me right, you size for an allowable velocity, U, based on

U = K x ((d_l - d_v)/d_v)^1/2

d_l is liquid density
d_v is liquid density
K is a sizing constant depending on the application

My experience is not with boilers, so the reference I look at is Perry's Chemical Engineers' Handbook. The chapter on Liquid-Gas Systems. You should try to research similar technology in the boiler field.

Good luck,
Latexman

 

[Latexman]

Correction.

dv is vapor density


Good luck,
Latexman