PDA

View Full Version : Comp generator noise help


moocow
06-24-2009, 10:09 AM
We are going to yates center in a few weeks for a comp with very little power provided. We have a coleman powermate 5000 we are going to use. It is not extremely loud, but would like to know how some of you guys make them quieter(boxes-mufflers-etc) Please leave honda generators out of your replys as they are not an option right now. Pics would also be great. Thanks

Ford
06-24-2009, 10:27 AM
make a box out of plywood 3 sides and a top. Make it big enough to staple insulation inside it for muffling. Put over generator and point open end toward you so the most noise hits you and not others. Leave enough air room for clean air flow to the generator so it won't overheat. Probably 6" clearance on every side. It will still make noise but not be as bad for neighbors.

And be prepared for complaints. What do you use it for? If it's not cooking then you can turn it off at night. Most smokers will run overnight on a jump start backup unit. Also offering neighbors power sometimes helps with noise complaints.

Good luck. We bought a Honda although most cotnests we go to supply power.

ZILLA
06-24-2009, 10:38 AM
I'm with Merl but I'd build it with A/C duct board, make it taller and point the open side up. You can cut the pieces to size and then assemble with duct tape on site.

moocow
06-24-2009, 10:56 AM
We need to run the a/c(6.9 amps), lights(2 amps),laptop and stoker(??? amps, I assume not very much), and a box fan to put in front of the generator box to help keep it cool.

Smokin Mike
06-24-2009, 11:10 AM
I sent you a pm about a possible solution, I seen people with noisey gensets at north k.c, even in boxes, it wasn't pleasant at all.

KC_Bobby
06-24-2009, 11:30 AM
I think anyone going to a comp that does not provide electricity should expect generators going all night - some people do not have the funds for the quite generators.

Not that that statement helps your question.

We did one comp without electricity and had to use a noisy generator. As we were not the only ones who did, we placed it about 150 feet away from the nearest team on the other side of a bit of a knoll.

Since, I have built a box similar to what Ford referenced and we have it just in case. However, doing one comp without electric was enough and we've vowed not to do another.

My thought to organizers - I understand that not every small town can provide a space that has hardwired running electric to every team, but other options exist. I think in a lot of cases, the city could run temporary 15-20 amp service lines with minimal work. If not, a local company with a large generator (rental place for example) might provide one for event sponsorship.

And if the organizer still isn't able to come up with a realistic electrical source, schedule the comp to avoid the heat of the summer. Have it in April-May or September-October so people do not even have the desire for A/C throughout the night. And realize many teams will automatically shy away from your event for this sole reason.

Sorry, I'll get off my soapbox now.

Exe-que-tioner
06-24-2009, 12:07 PM
Very well said, Bob! My thoughts exactly.

Shane, funny you posted this question on the generators. Just wondering what we were going to do at Johnson County in a few weeks as well. Taking a fairly loud generator ( I am assuming) that we are borrowing from a freind.

Michael, can you PM your solution to me as well?

Thanks guys!

musicmanryann
06-24-2009, 12:22 PM
Totally agree with you Bob! Hopefully you can put up with a louda$$ generator coming from Big T'z camp this weekend, as I am thinking we may not have a choice.

moocow
06-24-2009, 12:50 PM
Totally agree with you Bob! Hopefully you can put up with a louda$$ generator coming from Big T'z camp this weekend, as I am thinking we may not have a choice.
Bobby as spent so much money on his new trailer it should be soundproof!:wink:
The noise should not bother him. They are providing 5 amps, but I do not know how they will regulate that so that power hungry teams don't take all of the power. I have never heard of a 5 amp breaker. you are right though, I would gladly pitch in $25 towards the rental of a diesel generator.

Divemaster
06-24-2009, 12:54 PM
Bobby as spent so much money on his new trailer it should be soundproof!:wink:
The noise should not bother him. They are providing 5 amps, but I do not know how they will regulate that so that power hungry teams don't take all of the power. I have never heard of a 5 amp breaker. you are right though, I would gladly pitch in $25 towards the rental of a diesel generator.
I've never heard of it either... maybe it's a typo and should have been 15 amps....

moocow
06-24-2009, 01:13 PM
I called and checked, its 5 AMPS

NCGuy68
06-24-2009, 01:43 PM
[quote=KC_Bobby;957640]
My thought to organizers - I understand that not every small town can provide a space that has hardwired running electric to every team, but other options exist. I think in a lot of cases, the city could run temporary 15-20 amp service lines with minimal work. If not, a local company with a large generator (rental place for example) might provide one for event sponsorship. /quote].

I like your thoughts Bobby but the major problem is LIABILITY. I'am a licensed electrician and have tried to assist local fund raising events many times in the past free of charge. The city doesn't want to take responsibility nor does a rental firm with a large generator if any mishaps occur.

Recently, a 10 year old boy tripped over a extension cord that I had put down temporarily, while he was running around with his sister. His parents wanted to SUE ME for creating a trip haxard!

Sad but true..........

musicmanryann
06-24-2009, 01:55 PM
[quote=KC_Bobby;957640]
My thought to organizers - I understand that not every small town can provide a space that has hardwired running electric to every team, but other options exist. I think in a lot of cases, the city could run temporary 15-20 amp service lines with minimal work. If not, a local company with a large generator (rental place for example) might provide one for event sponsorship. /quote].

I like your thoughts Bobby but the major problem is LIABILITY. I'am a licensed electrician and have tried to assist local fund raising events many times in the past free of charge. The city doesn't want to take responsibility nor does a rental firm with a large generator if any mishaps occur.

Recently, a 10 year old boy tripped over a extension cord that I had put down temporarily, while he was running around with his sister. His parents wanted to SUE ME for creating a trip haxard!

Sad but true..........

This is waaaaaay off topic, but this is on KCBS's sanctioning request form:

"I agree to provide a Certificate of Insurance, a minimum of 90 days prior to the contest, with KCBS named on a
certificate of insurance with a minimum of $1,000,000.00/2,000,000.00."

I could be totally wrong, but I would assume this insurance is just for Liability purposes.

QDoc
06-24-2009, 02:09 PM
Build two boxes both with 2 sides, 1 top and 1 end. Make the smaller box large enough to cover the generator and allow for air circulation. Make the other box four inches taller and the sides four inches longer and the overall width 8 inches wider . Place the smaller box over the generator with the closed end next to the muffler. Place the large box on top with the closed end away from the muffler. This way the emitted sound will have to travel in an "S" shape to leave the " sound attenuator ". Sound dampening boards or insulation may be used on the outside for increased effectiveness.

Divemaster
06-24-2009, 02:49 PM
Build two boxes both with 2 sides, 1 top and 1 end. Make the smaller box large enough to cover the generator and allow for air circulation. Make the other box four inches taller and the sides four inches longer and the overall width 8 inches wider . Place the smaller box over the generator with the closed end next to the muffler. Place the large box on top with the closed end away from the muffler. This way the emitted sound will have to travel in an "S" shape to leave the " sound attenuator ". Sound dampening boards or insulation may be used on the outside for increased effectiveness.
I like this idea! I wish I could afford a new Honda but that's a way away for now but I do have an old (almost 30 years :eek::eek::eek:) Toro that works like the day we bought it...

Plowboy
06-24-2009, 02:51 PM
Or you can borrow one of my Kipor 3000's. I have two of them.

DMDon
06-24-2009, 04:19 PM
Or you can borrow one of my Kipor 3000's. I have two of them.

Sold, I just sent you a PM

widespread
06-24-2009, 04:31 PM
QDoc has the right idea. Just make sure you get enought airflow so your genny doesn't overheat.
Lots of good info here: http://supersoundproofing.com/forum/index.php

stan
06-24-2009, 08:51 PM
I do not agree with the statement that rental companies do not want to donate one because of liability. The liability is not theres but the organizers. Very hard to impute the liability from the rental company for the unit when in most cases you pick it up, set it up and run the lines. That is what insurance is for!

For two years now we have gotten a large diesel generator from a local rental place for a bbq lunch for the employees. I believe it takes building a relationship with a company like that to get it and make them a sponsor for the donation.

Neal
06-24-2009, 09:01 PM
The few times we have used a generator we have placed it as far away as possible and used along entension cord back to camp for power. To muffle the sound we used one of our center-hinged plastic tables and placed it around the genset. It was a quick and easy way to deaden some of the sound and there was no need to build anything for a one time use.

CivilWarBBQ
06-24-2009, 09:36 PM
I would gladly pitch in $25 towards the rental of a diesel generator.

Clearly you've never seen the prices on large gensets. Your twenty five bucks would cover your share of the cost of fuel for the weekend, and that's about all.

Trailer mounted diesel generators and distribution wiring costs many thousands of dollars to rent for a single weekend.

moocow
06-24-2009, 09:46 PM
Clearly you've never seen the prices on large gensets. Your twenty five bucks would cover your share of the cost of fuel for the weekend, and that's about all.

Trailer mounted diesel generators and distribution wiring costs many thousands of dollars to rent for a single weekend.
I know how much they cost, I have rented many over the years in my line of work. I am just saying if there were 30 teams at $25 each =$750. If you get any sort of discount/sponsorship from the rental place. I think you could make it happen. Jeff in KC, how much gas did that gen use at your contest?

Plowboy
06-24-2009, 10:17 PM
Sold, I just sent you a PM

Wait. Wasn't that you talking smack after Qlossal? :cool:

Gerrit_Boys
06-24-2009, 10:18 PM
Don't do anything with your loud generator. Just act like your going to start it and someone near you with quiet one will throw you a cord from theirs:biggrin:. We do it sometimes at drag races when our neighbors bring a loud one.

ThomEmery
06-25-2009, 07:42 AM
Clearly you've never seen the prices on large gensets. Your twenty five bucks would cover your share of the cost of fuel for the weekend, and that's about all.

Trailer mounted diesel generators and distribution wiring costs many thousands of dollars to rent for a single weekend.



I have one event that does not provide power

Guys these Generators are second to Prize Fund
on the budget Very expensive

moocow
06-25-2009, 03:16 PM
My generator issue has been resolved. Did not mean to turn this into a non power contest bashing thread. Yates Center seems to be pulling out all of the stops for us. Lots of goodies-free bottled water and ice- $100 entry. We can live without them having a lot of power. Thanks for all of your help.