Exhaust Gas Heat Exchanger installation

[JohnWeal]

Good evening,

An EGHEis to be installed in a power plant

The total mass is 2000 kg. It is currently shown installed on directly into the building slab base floor.

I stated that it should be installed on a plinth. (Or two plinths to be more precise - one under each of the two flat bottomed steel saddles)

The manufacturer states in the O&M guidelines to ‘fix one end and the other end fixed but able to float to allow thermal expansion.’ No problem with that. However, with a plinth, I think the floor maybe installed on a slight fall for drainage etc and also the concrete grade may not be as hard.

Just my thoughts as I have not been involved with installing EGHE’s before.

Regards

 

[MintJulep]

And your question is?

 

[JohnWeal]

Hello MintJulep,

Sorry, should the heat exchanger be mounted on a plinth or does it not really matter?

Regards
J

 

[MintJulep]

If the existing slab is "good enough" (i.e. strong enough, level enough) then why would a plinth be needed?

If the existing slab is not good enough (but is known), then a plinth is a possible solution to the deficiencies.

If you can't be sure what the existing slab is then probably cut it out locally at the saddle locations and make a known foundation independent from the slab.