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dgoldwaters
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Diesel Generator Under the Rain

10/02/2020 3:36 AM

Is it wise to keep a diesel generator ON and keep RUNNING under heavy rainfall without any roof/shield over its top or exhaust ? What is the disadvanatage of this?
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Tornado
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#1

Re: Diesel generator under the rain

10/02/2020 5:03 AM

Keeping it running might help to blow the rain out of the stack.

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Randall
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#2

Re: Diesel Generator Under the Rain

10/02/2020 8:11 AM

It almost certainly depends on the spec. of the particular generator.

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dgoldwaters
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#3
In reply to #2

Re: Diesel Generator Under the Rain

10/02/2020 8:21 AM

How do you mean? Please explain further ,?
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redfred
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#4
In reply to #3

Re: Diesel Generator Under the Rain

10/02/2020 8:39 AM

Some diesel engines are designed to operate in the rain, some are not designed for this. You will get a better explanation by reviewing the documentation (manual, sales brochure, customer support desk, etc.) from the manufacturer.

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dgoldwaters
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#5
In reply to #4

Re: Diesel Generator Under the Rain

10/02/2020 9:03 AM

Thank you, but not able to lay hands on the manual presently .The generators are Pekin engine, and a Doosan generator separately.
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PWSlack
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#10
In reply to #5

Re: Diesel Generator Under the Rain

10/02/2020 10:02 AM

So why stop and wait? Use the telephone to obtain them, for goodness’ sake.

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PWSlack
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#13
In reply to #2

Re: Diesel Generator Under the Rain

10/02/2020 1:00 PM

...and the spec on the <...rain...>.

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SolarEagle
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#6

Re: Diesel Generator Under the Rain

10/02/2020 9:13 AM

Some are designed for weather....is yours?

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dgoldwaters
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#7
In reply to #6

Re: Diesel Generator Under the Rain

10/02/2020 9:35 AM

It's the doosan generator that has the features in the video you sent, with that type of cover on the exhaust outlet. The Perkins does not have those features and also the exhaust pipes open vertically to the sky.
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PWSlack
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#24
In reply to #7

Re: Diesel Generator Under the Rain

10/04/2020 11:56 AM

That's hardly SolarEagle's problem.

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redfred
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#8

Re: Diesel Generator Under the Rain

10/02/2020 9:48 AM

Find the model number of the generator and engine. Then contact Doosan and Perkins about these units. These companies know their products' capabilities and limitations. We at CR4 don't even know the model numbers of these machines nor what you consider to be heavy rainfall.

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dgoldwaters
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#9
In reply to #8

Re: Diesel Generator Under the Rain

10/02/2020 9:52 AM

Okay, thank you
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#11

Re: Diesel Generator Under the Rain

10/02/2020 10:07 AM

Diesel trucks usually have a rain flapper.
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dgoldwaters
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#14
In reply to #11

Re: Diesel Generator Under the Rain

10/02/2020 2:33 PM

Thank you
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MikeMack747
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#12

Re: Diesel Generator Under the Rain

10/02/2020 11:57 AM

Put a 90 degree elbow on the exhaust

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Andy Miller
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#15

Re: Diesel Generator Under the Rain

10/03/2020 1:24 AM

"Is it wise to keep a diesel generator ON and keep RUNNING under heavy rainfall without any roof/shield over its top or exhaust ? What is the disadvanatage of this?"
It will never hurt it running in the rain, it is damaged when it is stopped and there is no cover over the exhaust pipe!
While running the water will be turned to steam and taken out the exhaust as fast as it can come in!
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PWSlack
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#20
In reply to #15

Re: Diesel Generator Under the Rain

10/03/2020 1:30 PM

It’s amazing what an old baked beans tin can do.

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Basco
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#16

Re: Diesel Generator Under the Rain

10/03/2020 6:20 AM

There are a number if disadvantages to running generators in the rain unless suitable precautions have been taken to prevent rainfall damage. As mentioned the exhaust is a potential point. Likewise cooling airflow can draw droplets through the alternator windings, brushes, bearings and AVR, potentially causing issues. Electrical switchgear will fail.

The engine electrics are vulnerable and the 12/24v alternator can develop issues along with engine monitoring and control failures. Water ingress to the fuel tank and fuel system will cause delays. Moisture drawn into the engine through the air filter will cause delays. Rust and corrosion of components is anther problem. In short keep her dry unless precautions have been put in place
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Codemaster
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#17

Re: Diesel Generator Under the Rain

10/03/2020 9:06 AM

The generator should have an IP rating. That will tell you whether it's vulnerable to rainfall, running or stopped.

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dgoldwaters
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#18
In reply to #17

Re: Diesel Generator Under the Rain

10/03/2020 11:05 AM

What is an IP rating?
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#19
In reply to #18

Re: Diesel Generator Under the Rain

10/03/2020 11:21 AM

Here's a chart from the internet. The first digit refers to ingress of solid bodies, the second to water penetration. The range goes up to IP68, or IP69 depending on who you ask, but this covers the weatherproof area.

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#21
In reply to #18

Re: Diesel Generator Under the Rain

10/04/2020 11:46 AM

It's a good thing to enter into any internet search engine before hitting the return key.

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#22

Re: Diesel Generator Under the Rain

10/04/2020 11:49 AM

https://www.youtube.com/watch?v=iQOToyMRYCs

https://www.youtube.com/watch?v=QlyPToUNlE0
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#23

Re: Diesel Generator Under the Rain

10/04/2020 11:55 AM

https://www.youtube.com/watch?v=XvVV2WkQglQ
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PWSlack
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#25

Re: Diesel Generator Under the Rain

10/05/2020 7:12 AM

That's why windscreen wipers are fitted:

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PWSlack
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#26

Re: Diesel Generator Under the Rain

10/07/2020 5:57 AM

Where it is necessary, an appropriate <...roof/shield...> is provided.

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dgoldwaters
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#27
In reply to #26

Re: Diesel Generator Under the Rain

10/07/2020 6:43 AM

Thank you, I am grateful to all of you
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Users who posted comments:

Andy Miller (1); Anonymous Poster (2); Basco (1); Codemaster (2); dgoldwaters (7); MikeMack747 (1); PWSlack (7); Randall (1); redfred (2); Rixter (1); SolarEagle (1); Tornado (1)

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