Mounting of Additional Heat exchanger
Mounting of Additional Heat exchanger
(OP)
Hey fellas,
I'm new on the job and my first assignment is to finish up a half completed project. The guy I replaced ordered a heat exchanger to install on an existing cooling system in order increase cooling capacity. Now I have to figure out how he planned on installing it. See pictures below to get better idea of what I'm talking about. My thought was to bolt the new heat exchanger directly onto the existing unit but there will be no room to get nuts and bolts positioned. Any help would be appreciated.

I'm new on the job and my first assignment is to finish up a half completed project. The guy I replaced ordered a heat exchanger to install on an existing cooling system in order increase cooling capacity. Now I have to figure out how he planned on installing it. See pictures below to get better idea of what I'm talking about. My thought was to bolt the new heat exchanger directly onto the existing unit but there will be no room to get nuts and bolts positioned. Any help would be appreciated.






RE: Mounting of Additional Heat exchanger
Regards,
Mike
RE: Mounting of Additional Heat exchanger
Some lateral extension of the thing will appear in this case and maybe some risk of injury to uncaring workers knocking the bracket.
RE: Mounting of Additional Heat exchanger
If there is no new fan then the 2 HE's may need some ducting joining them.
RE: Mounting of Additional Heat exchanger
RE: Mounting of Additional Heat exchanger
RE: Mounting of Additional Heat exchanger
RE: Mounting of Additional Heat exchanger
(maybe this is why the fellow is no longer there ;)
RE: Mounting of Additional Heat exchanger
RE: Mounting of Additional Heat exchanger
I am kind of assuming here that the units are cooling the tubside fluid. If not, the same concepts would apply.
AllHandlesTaken has a good point, maybe it is a replacement bundle, I am not sure how you would confirm this. You might end up doing a heat balance anyway.
Regards,
Mike
RE: Mounting of Additional Heat exchanger
What is the problem with the existing system?
RE: Mounting of Additional Heat exchanger
RE: Mounting of Additional Heat exchanger
H H H
where the left H is the existing leg, the middle H is a sutb between legs, and the right H is the leg of the new bigger table above. By this arrangement you may have the legs of the bigger table upwards from the soil, if structurally correct. If not, simply use a table in table scheme like inpackaging sets of tables of different size, that is what above but with the legs of the bigger table directly supported at ground level.
Respect air temperature you may gain some advantage including a deflector above the entry to the now owershadowed heat exchange unit. This can also be supported by the legs of your new table.
RE: Mounting of Additional Heat exchanger
Water side either in series or parallel.
Air side either in series or parallel.
Since it seems no new fans were ordered, I'll have to guess that your predecessor intended to install the new coil on top of the old coil - placing the air side in series.
As you have already noted, that gives high air-entering temperature to the new coil.
Also, with the two coils in series the airflow will go way down. This seems like a significant oversight.
No way to guess what he might have had in mind for the water side.
I also find myself wondering why one of the water lines to the existing coil is insulted.
RE: Mounting of Additional Heat exchanger
You're correct, the air side will have to be placed in series, my boss is not giving me the option to build a new structure to mount the second HE. Any yes, the airflow will go way down, which is a significant oversight but I have no choice. As far as water side, will I gain anything more by running in parallel as opposed to series? The person originally in charge of this project intended to pipe the water side in series. Flow in the top HE and out the bottom HE. I'm questioning his educated guess.
RE: Mounting of Additional Heat exchanger
It makes the best of a poor situation.
RE: Mounting of Additional Heat exchanger