Generator Quiet Box

[rafa]

Hi.

Just thought I'd put this out there.

I'm trying to make an enclosure fir my Honda EU20i.

The main reason is to quiet it even further.

I have installed a James Baroud roof top tent which I am installing an Air-command Sparrow lightweight Air conditioner to.

As most of you know I work in very remote aboriginal communities where petrol sniffing is a real issue. Even though I will run the generator on opal fuel I don't want draw attention to the fact there is generator running.

I have seen this done before.

Here is what I have built so far.

40126

Hole cut for high captivity fan.

40127

40128

40129

Soundproofing with heat stuff

40130

40131

External weather proof power point wired to 10A plug to plug straight into genny

I have also purchased an exhaust shroud to take exhaust fumes and heat out of 100L esky

40132

In addition to the exhaust shroud I will also instal a vent that will allow the enclosure to be fully vented - the large ultra quiet fan will push a considerable amount of fresh air into the enclosure so I want an extra exit for heat air exchange.

40133

I will also put an engel fridge thermometer into the enclosure to monitor temp.

Your thoughts?

Marty.

I will add more as I go.

[threedogs]

I take it the fan is to let hot air out , you may need a shark gill style vent to let fresh air in

[MEGOMONSTER]

This looks great for what you want to do.
Won't the exhaust shroud lift the exhaust noise up. Especially when it revs up under load.
Would really like to see your results.
Great work well done.

[rafa]

I take it the fan is to let hot air out , you may need a shark gill style vent to let fresh air in

The fan at this stage is to push fresh air straight onto the side of the genny ( side service cover removed on honda)

I intend to add either an exhaust fan or vent to let the hot air out that doesn't get to exit through the exhaust shroud.

:)

[threedogs]

Cool ,and for locking it for safety reasons I'd be putting a large Harsp and pin lock on it with a big lockwood padlock
Those esky locks are useless IMO
I'd be ringing Honda Aust and get their thoughts on cooling their unit

[rafa]

Cool ,and for locking it for safety reasons I'd be putting a large Harsp and pin lock on it with a big lockwood padlock
Those esky locks are useless IMO

Yeah security is an issue. Considering putting the esky is back of pod and running the exhaust pipe straight out to exhaust out side ute.

Secure and maybe quieter again.

[threedogs]

remember hot air rises,
you can buy flexible exhaust

[rafa]

remember hot air rises,

The vent as pictured here would maybe go at bottom of pod between spare wheels at the bottom.

Due to having air con the roof top tent would remain closed up and vented from above.

40135

[Winnie]

remember hot air rises,

It does what it's told to when it's being pumped out. You know, not too dissimilar to the exhaust on your car!

[threedogs]

No the heat from the genset we were talking about.
Enclosing a motor in a box, exhaust isn't an issue

[rafa]

No the heat from the genset we were talking about

Yeah was gunna put the vent/fan in the esky lid. Still work in progress. Only started yesterday :)

[threedogs]

Looking good and you'll still have airflow over the genset as well.

[rafa]

Will be fuelling it externally as well with one of these for much longer running times.

40136

[threedogs]

too bad you can't use stainless steel braided fuel line.
never cut that stuff
Be nice if you could bring the airfilter to the outside
of the ice box somehow, don't want to be sucking hot air

[rafa]

too bad you can't use stainless steel braided fuel line.
never cut that stuff
Be nice if you could bring the airfilter to the outside
of the ice box somehow, don't want to be sucking hot air

Prob can mate.

[rafa]

too bad you can't use stainless steel braided fuel line.
never cut that stuff
Be nice if you could bring the airfilter to the outside
of the ice box somehow, don't want to be sucking hot air

Well with side cover off the genny it's coping all the fresh air right on side

[threedogs]

can only try it and see what temps it generates inside the box

[Mitch20b]

That's a great idea

[rafa]

That's a great idea

Thanks mate. Don't rush off and build one yet. Once I fit the exhaust shroud I'll do some extensive testing in relation to temp etc.

Will post results here.

Marty.

[rafa]

Ok so today I got back to it and fitted heat shield through esky

40683

40684

40685

40686

Need to add a grill / vent to outside next.

:)

[P4trol]

I read in your other thread you are running an aircon on your tent... soft...

But you could pipe some of that cold air back into the cool box? If you have access to any of the commercial generator hirers, visit them. They have container size generators that will give enough three phase power to... well they are big anyway. A lot of them aren't exactly silent, but the loud noise is contained nicely inside the shell. Scope them out for some ideas with noise proofing.

[rafa]

I read in your other thread you are running an aircon on your tent... soft...

But you could pipe some of that cold air back into the cool box? If you have access to any of the commercial generator hirers, visit them. They have container size generators that will give enough three phase power to... well they are big anyway. A lot of them aren't exactly silent, but the loud noise is contained nicely inside the shell. Scope them out for some ideas with noise proofing.

Good idea cheers.

I'll post how I go!