jeap
Chemical
- Nov 1, 2006
- 36
Hi All!
I'm just trying to verify the actual capacity of a indirect fired heater API 12K type. API 12K only gives a general guidance based on "standard capacities" from 100M to 1.5 MM btu/h
After following a laboriuos method to find heat transfer coefficients at the fire tube side, and calculate heat transfer for a specific service I found that I don't know which are the main restrictions in the design of the fire tube, for instance maximum flue gas speed through it in order to mantain a natural draft of air. Please I need some advice on that restrictions.
Thanks in advance
PD I've read
thread794-24190 where some British standards were mentioned.
I'm just trying to verify the actual capacity of a indirect fired heater API 12K type. API 12K only gives a general guidance based on "standard capacities" from 100M to 1.5 MM btu/h
After following a laboriuos method to find heat transfer coefficients at the fire tube side, and calculate heat transfer for a specific service I found that I don't know which are the main restrictions in the design of the fire tube, for instance maximum flue gas speed through it in order to mantain a natural draft of air. Please I need some advice on that restrictions.
Thanks in advance
PD I've read
thread794-24190 where some British standards were mentioned.
