Boilers in series or parallel

[Roktgr]

Looking at replacing one to two of our 100hp boiler with 2-3 50hp units. I'm wondering if boilers in parallel or series have the same effects as pumps do in the above configurations?

What would be the best method to run the 2-3 50hp boilers? They provide steam heating at a hospital and run ~26psi max in the winter, so the smaller boilers will need to be staged or modulate off each other.

 

[BillBirch]

kader007,
I would suggst that your comment about superheated steam, "... as it is hot you'll get a better heat exchanger using it in a heat exchanger." is not quite correct in that latent heat transfer is far more efficient in a heat exchanger than sensible heat transfer.

 

[EngAbdelkader]

BillBirch
I meant "heat exchange" or "heat transfer" in that sentence so it would be " ...you'll get a better heat transfer/exchange..." obviously the more your heating fluid (in the heat exchanger) is hot, the more your cold fluid (that is going to be heated)will warm up! I agree that it's a simplification but it's just to figure out a general overview otherwise I should speak about all the aspects of the heat exchange (flow rate, direction of the fluids inside the heat exchanger, shell and tube issue, thickness and material of the tubes, etc)