Exhaust removal from building. Log Out | Topics | Search
Moderators | Edit Profile

BNO BBS - BNO's Bulletin Board System » THE ARCHIVES » Year 2008 » January 2008 » Exhaust removal from building. « Previous Next »

Author Message
Denis (Denis)
Registered Member
Username: Denis

Post Number: 13
Registered: 11-2005
Posted From: 75.187.210.173

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, January 01, 2008 - 10:10 pm:   

We finally had a barn built for the bus, it is mostly done except for the doors and concrete floor. I will probably wait till spring weather to pour concrete but with luck the doors will be here within the week. Of coarse I will be backing into the building! I have been wondering what to do about the exhaust. Piping a connection to the tailpipe would only help for a warm up situation (not much good during the process of coming in or going out). Or an exhaust fan at the rear of the building. Any suggestions and comments will be appreciated. Thanks for your thoughts, Denis
Glenn Williams (Glenn)
Registered Member
Username: Glenn

Post Number: 122
Registered: 6-2006
Posted From: 216.163.57.205

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, January 01, 2008 - 10:19 pm:   

Unless you have a real smoker, I would not worry about exhaust during entry and exit since your really big bay door will be open anyway. If you are really worried about it, an exhaust fan in the back wall or overhead would do the trick. To me the big deal is getting the exhaust out during warm-up/other work.
john w. roan (Chessie4905)
Registered Member
Username: Chessie4905

Post Number: 801
Registered: 10-2003
Posted From: 71.58.48.5

Rating: N/A
Votes: 0 (Vote!)

Posted on Wednesday, January 02, 2008 - 7:52 pm:   

For warm up, plug in the block heater and pre fill the air so you don't have the smoke issue or a lot less. Over time you are going to get a film build up on the interior walls, so anything done to minimize the exhaust is beneficial. I have an exhaust fan in ceiling with shutters, also have an exhaust hose if running in shop. I will be hooking the hose to a squirrel cage blower once I get it mounted. Got the blower from a laundramat that closed. Was used to exhaust dryer heat and moisture.
James Stacy (Jimstacy)
Registered Member
Username: Jimstacy

Post Number: 121
Registered: 1-2001
Posted From: 76.248.111.177

Rating: N/A
Votes: 0 (Vote!)

Posted on Wednesday, January 02, 2008 - 8:35 pm:   

How about driving in frontwards? A short hose and a small covered porthole in the door will eliminate all exhaust all day, and none while driving in or out. No fans or major parts/labor.
KISS

Jim Stacy
Buswarrior (Buswarrior)
Registered Member
Username: Buswarrior

Post Number: 1146
Registered: 12-2000
Posted From: 76.68.121.28

Rating: N/A
Votes: 0 (Vote!)

Posted on Wednesday, January 02, 2008 - 9:01 pm:   

I'm with Jim, leave the smelly part close to the door...

happy coaching!
buswarrior
Denis (Denis)
Registered Member
Username: Denis

Post Number: 14
Registered: 11-2005
Posted From: 75.187.210.173

Rating: N/A
Votes: 0 (Vote!)

Posted on Thursday, January 03, 2008 - 4:58 pm:   

Thanks for all of your suggestions. The garage doors arrived this morning so we now have a Mostly closed in building! I would like to drive in forward but a couple of issues will probably keep me backing in anyway. I will try to get an exhaust hose for any run time and I think I have access to an exhaust fan from a bakery that may provide additional ventilation. Again thanks for your suggestions, Denis
Jack Conrad (Jackconrad)
Registered Member
Username: Jackconrad

Post Number: 709
Registered: 12-2000
Posted From: 76.3.169.171

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, January 06, 2008 - 9:02 am:   

We back our bus into our 30 X 60 shop. Before starting the bus when pulling out, we use the shop air to air up the bus. We release the brakes, start the engine and immediately pull out of the shop. Very little exhaust and it is gone by the time I close the big front door. If I have to run the bus in the shop (rarely), I open the back (12'x7') door and the rear side (12'x10') doors. Jack
john w. roan (Chessie4905)
Registered Member
Username: Chessie4905

Post Number: 804
Registered: 10-2003
Posted From: 71.58.48.5

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, January 06, 2008 - 10:03 am:   

If you pull in and back out, a lot of times that big? cloud of smoke might roll INTO the shop insteed of out depending on draft or temp difference between inside shop air and outside air. Backing in with a warm engine and pulling out with one like Jack and I do works best for me. Also, easier to get out quick if an emergency or having to use reverse with a stick as it is geared high. Your situation may be different.
Bruce Henderson (Oonrahnjay)
Registered Member
Username: Oonrahnjay

Post Number: 210
Registered: 8-2004
Posted From: 69.143.60.204

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, January 06, 2008 - 10:24 am:   

The squirrel cage blower is the best bet to move air in a consistent, reliable way. If you go with a hose-fan evac system, a funnel that will hook to your exhaust pipe will pull all the smoke out. There are a couple of good ways - a little flange or "finger" of spring steel inside the funnel will pinch one side of the exhaust pipe to the funnel -- on the other hand, many people use bungie cords, etc.
Using a funnel type system will result in a lot of the air inside the building being drawn out with the smoke but this is only a factor if you've paid to heat it.
You'll also have to work out a system that pulls the hose out of the way as you're backing in but with a couple of bungies, a little cord and a pulley or two, you can work that out easily. You just don't want to run over the hose. On the other hand, if you coil the hose behind the bus on starting, it automatically pulls out straight. A bus that's running and warmed up shouldn't smoke too badly. If you're just backing in, maybe you don't need the hose; if you're going to be idling the bus after you back in, just connect the hose and start the fan and you'll draw out most of the exhaust that accumulated when you were backing in.
Whatever, the fan with hose and funnel works just fine.
Simon Ayriss (Design_dog)
Registered Member
Username: Design_dog

Post Number: 84
Registered: 3-2007
Posted From: 69.227.189.77

Rating: N/A
Votes: 0 (Vote!)

Posted on Friday, January 11, 2008 - 3:14 am:   

For what it's worth.

If it is really that serious and if you plan on working in the garage that much while running, then think smart get ideas from the pro's.
Meaning...
There's a whole Transportation world out there that has to service buses 24-7.
Mechanics and stations work on buses all the time while in the shop. They make expensive machines to port the exhaust out of the shop at full service stations. Maybe you can get some product information about these systems. It will be overkill but for your purposes you might be able to get some great ideas as to how they "engineer" a solution.
An example of one of these 'mechanic' systems is here.
I recently did some work for a drug testing facility (they test for drugs in transportation drivers.) Anyway. I got to pick up a great magazine called METRO. It's for the transportation industry but has a lot of great bus industry photos, articles and products.
Also, smog check garages always have a large hurricane fan. They have those for mechanics and they move a lot of air. Any smog check station wouldn't be stuck without one. You can find one at a mechanic supply house. That might help.

Add Your Message Here
Posting is currently disabled in this topic. Contact your discussion moderator for more information.

Topics | Last Day | Last Week | Tree View | Search | Help/Instructions | Program Credits Administration