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Member

Join Date: Feb 2010
Posts: 6

Noise Reduction for Portable Generator

02/09/2010 10:10 AM

I wish to fit a Maxwatt 5500w 4-stroke petrol generator to supply power to my Houseboat. The noise level @ 7m is 74db (A).

Beside sound proofing the enclosure can I fit a exhaust muffler / waterlock which inboard engines use?

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Commentator

Join Date: Nov 2007
Location: Newtown Square, PA
Posts: 55
#1

Re: I WISH TO REDUCE THE NOISE LEVEL OF A PORTABLE GENERATOR

02/09/2010 1:37 PM

There are special exhaust extenders available for RV's which you can use for your generator. This way you not only reduce the sound but also the smell.

Here is a link to an example with pictures.

http://www.campingworld.com/shopping/item/gen-turi-generator-exhaust-system/14041


When thats done and you want more, fence it in with R-19 sound absorbing rockwool insulation. Don't forget to allow for air for the cooling.

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#4
In reply to #1

Re: I WISH TO REDUCE THE NOISE LEVEL OF A PORTABLE GENERATOR

02/10/2010 6:05 AM

Many thanks.

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#5
In reply to #1

Re: I WISH TO REDUCE THE NOISE LEVEL OF A PORTABLE GENERATOR

02/10/2010 6:57 AM

Any suggestions as to how big the enclosure should be? How much clearance around the motor is required? Where should the openings for the air be located? Acturally, if you had a drawing of an enclosure the works with dimensions, then, by prorating the dimensions for another size engine might give a satisfactory design.

I know I'm asking a lot, but without asking, I'll never find out without a lot of trial and error. I have an el cheapo generator that I would like to quieten down.

Have some fun today,

PAPADOC

RMFR

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#8
In reply to #5

Re: I WISH TO REDUCE THE NOISE LEVEL OF A PORTABLE GENERATOR

02/10/2010 10:09 AM

Well done, I'm looking forward to the response.

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#2

Re: Noise Reduction for Portable Generator

02/09/2010 11:50 PM

You can find exactly what you are looking for in most marine supply catalogs- West Marine, for example. There are specialized exhaust systems designed specifically for this application.

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#7
In reply to #2

Re: Noise Reduction for Portable Generator

02/10/2010 9:00 AM

Many thanks.

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Associate

Join Date: May 2009
Location: Zambia
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#3

Re: Noise Reduction for Portable Generator

02/10/2010 2:28 AM

Sound proofing the engine enclousure will take care of the mechanical noise from the engine, but be careful, you dont want the average enclosure air temp to go up by more than 6 deg Celcius and ensure that the hot "cooling" air is not allowed in any way to be circulate back to the engine air filter intake. the same is true for the hot air coming off of the alternator fan as well. Ideally you shold allow the alternator and the airfilter to breathe in fresh cool air from outside of the soundproofing enclosure. Ensure the generator is rubber mounted, vibration creates noise everywhere in everything

Inboard engines for marine applications have raw water pumped up from the lake to cool the heat exchanger on water cooled engines (an air cooled engine would not have this heat exchanger) and injected into the exhaust just after the exhaust leaves the cylinder head but not so close as to possibly allow water to flow back into the cylinder head when the engine is shut down. This water then cools the exhaust and exhaust air and helps silence the exhaust. The water and air mixture is then collected in an a silencer pot and then as the pot fills to a predetermined evel the water is forced out of the boat and dumped overboard. This option would not be practical in your case unless the exhaust is creating tooo much heat which needs to be removed. An option would be to increase the size of the exhaust pipe and extend it so the tip is just below the waterline allowing the lake to act as an additional silencer. the pipe would need lagging and safety guards to prevent burns and heating of the immediate boat work surrounding it. Alternatively Try a different muffler from a mortorcylce for eg of equivalent cu inch size . Note that you do not restrict the exhaust gas flow too much as this increase in backpressure could cause failure of the exhaust valve over time.

To quieten the exhaust noise you need to restrict the outlet and/or increase the muffler size. too much restriction causes problems. Measure the back pressure on the engine with the standard exhaust fitted then use that as a yard stick to measure and changes you make to ensure you do not deviate too much from the factory backpressure.

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#6
In reply to #3

Re: Noise Reduction for Portable Generator

02/10/2010 7:32 AM

Hi Basco

Many thanks for your valued assistance.

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#9

Re: Noise Reduction for Portable Generator

02/10/2010 12:31 PM

Do not use a petroleum motor generator, Use a FBG Forever Battery Generator, it uses less power than it produces. Very little to near zero noise, except for the brushes of the motor and generator. Small package, lite weight. Near zero maintance and NO fuel or issue to worry about. Prices I pay are 100 amp is $4,900.; 80 amp is $ 4,200,; 60 amp is $3,800.00. If you need 110/220 power then buy in inverter and you will need some batteries. the number depends on your usage. We buy deep cycle batteries for (Trojan)for $ 200. each with 390 amps guaranteed for 7 years. We use them on remote cell sites. If interested send me an email. we love them. Tom@GetESS.com

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#11
In reply to #9

Re: Noise Reduction for Portable Generator

02/11/2010 1:53 AM

Hi Tom. Can you please tell me where to find more info on this very interesting "Forever Battery Generator"? Thanks....SS.

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#18
In reply to #11

Re: Noise Reduction for Portable Generator

02/11/2010 10:11 AM

Smitty2

  • What are your applications / needs?
  • Where are you and/or these applications located?
  • What is the amp draw of your equipment / building?

Let me know and I can help you properly size the FBG. Contact me directly at Tom@GetESS.com

FBG Forever Battery Generator

Do not use a petroleum motor generator, instead, use a FBG (Forever Battery Generator); The FBG uses less power than it produces to keep your equipment running; ie. HVAC, Computers …

Benefits:

Ø Near zero maintenance and NO fuel or "issues" to worry about

Ø little to near zero noise, except for the brushes of the motor and generator.

Ø Small package, lite weight.

Ø No emissions so indoors works great.

Prices I pay for 10 or more are :

100 amp output is $4,900.;

80 amp output is $ 4,200,;

60 amp output is $3,800.00.

You will need at least one or two batteries, the number depends on your equipments usage, we buy Trojan deep cycle 390 amps each for $ 200.each guaranteed for 7 years and they work.

If you need 110/220 AC power as well as DC then put an inverter into your system.

We use them on remote cell sites. If interested send me an email.Tom@GetESS.com

Operation, Maintenance & Warranty for the Forever Battery Generator

By: Effective Solutions & Systems Co.

The Forever Battery Generator (FBG) will restore the battery's to their full storage capacity. The power inverter coverts the 12 DC to 110 Volt AC or 220 Volt AC to operate a load/building. This happens automatically any time the battery's drop below 10.6 amps.

Connect your battery's in parallel to the provided connection. Turn the switch to the "ON" position to have the generator ready to operate. The switch has a removable key for your safety.

Maintenance: The DC motor brush life can be anticipated by monitoring the motor brush wear in the specific application. Inspection is recommended after the first 200 hours of operation. It is at the discretion of the customer to determine a proper preventive maintenance schedule based on large part to actual run time as well as start and stop per hour per day. Brushes have an initial length of 1 ¼". When the brushes are worn to a length of 5/8 they should be replaced. The generator should be kept clean and free of debris. Use a soft brush to clean and do not allow air intakes to become blocked

Warranty: One year limited warranty

Effective Solutions & Systems Co. 248-703-7110 or Tom@GetESS.com

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Associate

Join Date: May 2009
Location: Zambia
Posts: 30
Good Answers: 2
#12
In reply to #9

Re: Noise Reduction for Portable Generator

02/11/2010 2:09 AM

Hi Hman,

Please tell me more about this Forever Battery, where does the power come from? Is there a website I can go to?

Thanks Juan

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Member

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Posts: 7
#17
In reply to #12

Re: Noise Reduction for Portable Generator

02/11/2010 10:07 AM

What are your applications / needs Juan?

Where is the application located?

What is the amp draw of the building / equipment? Let me know, I can help you size it. They are built in the US with US componets. Prices I pay do not include shipping and we buy a min of 10 at a time. Tom@GetESS.com

FBG Forever Battery Generator

Do not use a petroleum motor generator, instead, use a FBG (Forever Battery Generator); The FBG uses less power than it produces to keep your equipment running; ie. HVAC, Computers …

Benefits:

Ø Near zero maintenance and NO fuel or "issues" to worry about

Ø little to near zero noise, except for the brushes of the motor and generator.

Ø Small package, lite weight.

Ø No emissions so indoors works great.

Prices I pay for 10 or more are :

100 amp output is $4,900.;

80 amp output is $ 4,200,;

60 amp output is $3,800.00.

You will need at least one or two batteries, the number depends on your equipments usage, we buy Trojan deep cycle 390 amps each for $ 200.each guaranteed for 7 years and they work.

If you need 110/220 AC power as well as DC then put an inverter into your system.

We use them on remote cell sites. If interested send me an email.Tom@GetESS.com

Operation, Maintenance & Warranty for the Forever Battery Generator

By: Effective Solutions & Systems Co.

The Forever Battery Generator (FBG) will restore the battery's to their full storage capacity. The power inverter coverts the 12 DC to 110 Volt AC or 220 Volt AC to operate a load/building. This happens automatically any time the battery's drop below 10.6 amps.

Connect your battery's in parallel to the provided connection. Turn the switch to the "ON" position to have the generator ready to operate. The switch has a removable key for your safety.

Maintenance: The DC motor brush life can be anticipated by monitoring the motor brush wear in the specific application. Inspection is recommended after the first 200 hours of operation. It is at the discretion of the customer to determine a proper preventive maintenance schedule based on large part to actual run time as well as start and stop per hour per day. Brushes have an initial length of 1 ¼". When the brushes are worn to a length of 5/8 they should be replaced. The generator should be kept clean and free of debris. Use a soft brush to clean and do not allow air intakes to become blocked

Warranty: One year limited warranty

Effective Solutions & Systems Co. 248-703-7110 or Tom@GetESS.com

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#19
In reply to #17

Re: Noise Reduction for Portable Generator

02/11/2010 12:51 PM

Hman, your company name brings up no hits via Google and getess.com similarly fails to produce a reliable hit (just a godaddy.com page). Can you provide any real information?

The way this is being presented makes it seem like a scam. Until more information is provided everyone should keep their wallets in their pockets and their personal information, well personal.

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Off to take on other challenges. Good luck everybody! See you around the Interwebs.
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Member

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Posts: 7
#20
In reply to #19

Re: Noise Reduction for Portable Generator

02/11/2010 2:28 PM

to date, I have put my time into my clients processes. Now I also have some products, the Forever Battery Generator and a HVAC system which uses less than half the normal energy and no freon as freon does not work well in space.

We have just started to work on web content and marketing materials. You have my information. Use it with care. As cash flow gets better I will spend some on web pages but it has not been a priority. Tom Hellman

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Guru

Join Date: May 2008
Location: Aggieland, Texas
Posts: 722
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#13
In reply to #9

Re: Noise Reduction for Portable Generator

02/11/2010 3:43 AM

This seems like the way to go. It should be very quiet. However, I would sure like to see some pictures of existing, operating FBGs. Please send us some more data, pictures, etc. to substantiate your claim that it uses less power than it produces. If it doesn't use less power than it produces, I understand. But, send some data, pictures, etc., anyway.

Have some fun today,

PAPADOC

RMFR

Live And Let Live

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Anonymous Poster
#10

Re: Noise Reduction for Portable Generator

02/10/2010 4:47 PM

I lived on a house boat for two years near Fort Myers, FL. I put the generator on a raft near the boat to isolate the noise and vibration and fuel spill accidents/smell. The generator used a silencer for a motor home. The cable and wiring had a remote start/stop/kill capability. Aim the exhaust pipe up for about 6 feet and put a sink trap at the bottom of it with a 1/4" hole in it for rain drainage. This was the most quiet and least stinky way to do it.

The raft was 8ft square and used plastic barrels. It was made to come apart and load onto a small utlity trailer for moving.

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Guru

Join Date: Feb 2009
Location: Tamilnadu, India
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#14

Re: Noise Reduction for Portable Generator

02/11/2010 8:51 AM

You may consider runner mat packings below the generator bed to the boat, so that major vibration noise could be arrested. Choose the right thickness and hardness.

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#15
In reply to #14

Re: Noise Reduction for Portable Generator

02/11/2010 9:29 AM

Thks.

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Guru

Join Date: Feb 2009
Location: Tamilnadu, India
Posts: 836
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#16
In reply to #15

Re: Noise Reduction for Portable Generator

02/11/2010 10:04 AM

CORRECTION IN POSTING 14,

Please read as rubber mat instead of runner mat[ in first line]

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Anonymous Poster
#21

Re: Noise Reduction for Portable Generator

02/11/2010 8:23 PM

"Uses less power than it produces"?WOW!

I gotta have me one o' dem perpetual motion machines:

Just hook the output to the input, and it will run forever.!!

I'll take a dozen please.

Send to: Mr.Stu Pidass

6969 Upyerz St.

ZZYZX California

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