[labnetwork] Steam Humidifier system question

[Iulian Codreanu]

Hi Rick.

I would not allow that water to return to the tank that services the 
cleanroom.

At Penn I have a separate loop feeding the steam generators.

Basically the water generated by the RO unit splits into two streams:
1) One feeds the UPW loop that services the cleanroom
2) One feeds the DI water loop that services to non-cleanroom labs in 
the building and the steam generators.

Each loop has its own separate storage tank.

I hope this helps.

Iulian
---
iulian Codreanu, Ph.D.
Director, Penn NanoFab
200 South 33rd Street
Room 376 GRW Bldg
Philadelphia, PA 19104-6314
P: 215-898-9308
F: 215-573-2068
www.seas.upenn.edu/~nanofab

On 9/14/2012 3:19 PM, Morrison, Richard H., Jr. wrote:
> Hi All,
>
> Facilities at my labs want to run 18megohm to a boiler for humidity
> control in another lab. I think it should be RO water as 18Megohm water
> is very corrosive. Any thoughts on this?
>
> Their suggested design would draw 0.5gmp from my supply loop and return
> it to the DI tank? My belief is that this return water would be
> contaminated by the boiler system. What do you guys think?
>
> Rick
>
> Draper Laboratory
>
> Group Leader Microfabrication Operations
>
> 555 Technology Square
>
> Cambridge Ma, 02139-3563
>
> www.draper.com
>
> rmorrison at draper.com
>
> W 617-258-3420
>
> C 508-930-3461
>
>
>
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