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Old 03-08-2016, 09:01 PM   #1
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Generator Location

Hello

I'm in the process of designing an aluminum box for a Honda 3000 that will be lined with acoustic foam/lead sheet to reduce the sound.

Air circulation will be provided through a baffled tunnel that is fed by 2-3 fans similar to those used in a computer.

The trailer has an 80 gal. water ahead of the axles. Having the gen box on the front of the TT wouldn't be the best.

As I see it there are 2 options

1. Gen box in the pick up box along with a spare diesel tank.

2.) Extend the bumper of the trailer so the gen box can be mounted at the back of the TT. Converting the generator to propane may add to the appeal of mounting it to the back of the TT.

What have people found to be the pros and cons of each location.


Thanks
John
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Old 03-08-2016, 09:21 PM   #2
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You may not be happy with the noise and exhaust fumes having it co-located with your Travel Trailer. The vibration will couple into your Travel Trailer and you may reduce the sound but perhaps not enough to satisfy you. Portable is nice you can locate anywhere the shore cable will reach down-wind of your RV, away from door and windows, greatly reducing the noise in the RV. When gone from the RV for all day, I could move the gen to minimize it's visibility from the road side of the RV.

I secured mine to the Travel Trailer with a cable lock system.

I had a Yamaha 2400ISHC that weighed only about 70 pounds, allowing it to be moved around with one person, and it generated enough power to run the rooftop AC. It's very quiet. Good Japan made unit that starts on the first pull.
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Old 03-08-2016, 09:37 PM   #3
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You also will probably have a problem keeping it running. 3 fans will not keep up with the air required by the engine.
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Old 03-09-2016, 06:28 AM   #4
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Before you convert to propane do some research on use.

You may need to find room for more tanks.

Honda says the eu3000i burns .36 gph of propane @50% power. That's a 20 lb tank every 12 to 13 hours.

Gas is a bit better @ .32 gph but cheaper and easier to find.
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Old 03-09-2016, 07:34 AM   #5
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You also will probably have a problem keeping it running. 3 fans will not keep up with the air required by the engine.
I agree, those computer fans will not keep the engine cool. My SIL tried a number of different enclosures for concession trailers and found evidence of over-heating even with large radiator size fans. His best results for sound control was directing the noise skyward.
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Old 03-09-2016, 02:39 PM   #6
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bumper

not sure if your rear bumper would support the bracket and generator.


Jim
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Old 03-09-2016, 03:08 PM   #7
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Propane has less BTU's than Gasoline and natural gas has even less. An example is a 3kW gasoline genset will only produce 2.8kW on propane.
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Old 03-10-2016, 03:26 AM   #8
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Originally Posted by jtbuilds View Post
Hello

I'm in the process of designing an aluminum box for a Honda 3000 that will be lined with acoustic foam/lead sheet to reduce the sound.

Air circulation will be provided through a baffled tunnel that is fed by 2-3 fans similar to those used in a computer.

The trailer has an 80 gal. water ahead of the axles. Having the gen box on the front of the TT wouldn't be the best.

As I see it there are 2 options

1. Gen box in the pick up box along with a spare diesel tank.

2.) Extend the bumper of the trailer so the gen box can be mounted at the back of the TT. Converting the generator to propane may add to the appeal of mounting it to the back of the TT.

What have people found to be the pros and cons of each location.


Thanks
John

Just saying

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Old 03-10-2016, 07:12 PM   #9
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I think putting on the rear bumper, having a special bracket welded onto the trailer frame would be the bee's knee's. Your cooling system should be rethought, they require lots of cooling air.

Besides what could possibly go wrong?


The information is out there, all you have to do is let it in.
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Old 03-14-2016, 09:02 PM   #10
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Thanks Everyone for the input especially about the input air.

Cooling the aluminum box may work by ducting the exhaust through a 4" tube that has triangles cut into it and is centered inside 5" tube. Like a gen-turi except outside tube will be connected to the box so that air will be pulled through the sound box.

Take Care
John
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Old 03-16-2016, 11:10 AM   #11
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To avoid noise, vibration, air supply and cooling issues, I store and use my generator in the box of my pickup truck.

I remove the tie down strap and the gas can when running the generator.
Also a good idea to leave the tailgate open. The generator exhaust gases seem to settle in the box with the tailgate up.
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