Hi Matthew,

I'm not an air expert but, thinking logically you need to isolate or remove
the air from that part of the room.  The air has to go into the smoke room
and outside.  Sorta horizontal clean room without the HEPA filters or
laminar flow.  Fans to push all the air into the smoke room and fans (in the
windows perhaps) to pull the smoky air outside.

They use air dams at the grocery stores with some success - fans blowing
down.

You raise the age old question, "How does smoke know to stay in the smoking
section?"

Hans

PS Is it irony that you work for a fire detection company?

~~~~~~~~~~~~~~~~~~~
Hans M. Hinners
Materials Engineer (Process & Manufacturing)
Warner Robins Air Logistics Center
Avionics Production Division
Manufacturing Branch
380 Second Street, Suite 104
Building: 640, Mail Stop: LYPME
Robins AFB, GA 31098-1638
Voice: (478) 926 - 1970 Fax: (478) 926 - 7164
mailto:[log in to unmask]
http://www.robins.af.mil



Hiya folks,
I know that this is a bit off topic, but are there any ventilation
experts out there?

If I explain why I ask:
My employers stopped smoking on the premises a while ago, but knocked up
a partitioned room in the canteen
for the die hard smokers to use (rather that than lose them).
However the canteen quickly fills with smoke, making it unbearable to
non smokers.

The canteen is approx. 70' long X 20' wide X 10' high, ate each end is a
16" (approx.) fan.
The partitioned smoker room is an enclosed room with a small 9" fan in
it
(its all that would fit in the roofspace available as its next to some
windows).

What happens is that "the smokers" come and have a smoke, filling the
room and the smoke just happens to
leach out as the fan in there is inadequate to extract it.
The fans at either end keep getting messed with as everyone seems to
have their own opinion as to how best to operate them.
So when it comes time for me to go and eat my dinner, the air is stale &
bad to breath, I then have to open the windows & everyone complains of
getting cold etc.

If there is an expert out there could I beg a suggestion as to the best
way to operate the fans?
(I know the "best" thing is to get rid of the smoke room, but that's not
going to happen for a long while).


Here is a rough ASCII drawing of the room.
_______________________________________________
|         |--|                                |        SMOKE
 |          |--|        |
|      FAN1                            |        ROOM                |
   FAN2     |
|                                              |________________|
              |
|
                                    |
|
            |                       |
|____________________________________|__________|
                                                 7' HIGH WOODEN
PARTITION

Many thanks for any reply...
Matthew Lamkin
PCB Draughtsman.

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following
text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################