[SEL] reducing noise on portable generator

[guitronics]

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Roger DiRuscio wrote:

> You really cant change the generator RPM,s with out messing up the cps 
> (60cps) You can make a 10 to 15% difference with mufflers and 
> barriers, but thats about it.
> Sell it and spent some extra money on a 4 pole 1800 RPM gen-set. or 
> better yet one of the Honda EU series with built in inverters.
>
> Roger DiRuscio, Broker Associate, The Realty Experts
> Sales since 1977, 510-797-4000 ofc
> Collector of antique engines
> Website; scrapologist.com
> Fremont,Ca
> ----- Original Message ----- From: "David Tiefenbrunn" 
> <davidtief at abac.com>
> To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
> Sent: Tuesday, May 17, 2005 6:20 PM
> Subject: Re: [SEL] reducing noise on portable generator
>
>
>> At 11:06 AM 5/17/2005 -0400, Ivan wrote:
>>
>>> But how to quiet it down a little more  ?
>>> I would like to put a smaller pulley on the gen itself so that I can 
>>> lower
>>> the speed a little more ,target is1800 rpm and I have one of the lo 
>>> tone
>>> mufflers from briggs  .So its a little quieter than a jet turbine .
>>
>>
>> I was at an event where we had to run one of those noisy things.  I 
>> found
>> that folding table laid over on it's side made a wall between the 
>> genny and
>> us that took a lot of the "bite" out of the noise.  Higher & denser
>> material (plywood / particle board) would be more effective.  A heavy
>> blanket or rug on the genny side would help even more.  The barrier 
>> can be
>> a couple feet away from the genny.  It does have to be high enough to 
>> block
>> the "line of site" between the genny and the ears that don't want to 
>> hear it.
>>
>> Dave
>>
>>
>> David Tief.  N1WWY
>> Visit our web page at: http://users.abac.com/dandatief
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>
>
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