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Join Date: Apr 2014
Location: Nashik, Maharastra, India
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Refrigerator Condenser

11/04/2016 5:38 AM

Nowadays, I saw New technology refrigerator, in that all condenser coil are covered with sheet. My question is that by providing covered to condenser coil is there any heat rejection increase. If No, so what is the use to provide the cover to condenser coil.

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#1

Re: Refrigerator Condenser

11/04/2016 7:47 AM

Sometimes it looks like it's covered with a sheet. Because of the air convection, it picks up a lot of dust. I agree, it does seem like it would reduce efficiency.

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#2
In reply to #1

Re: Refrigerator Condenser

11/04/2016 8:20 AM

I think that a sweater.. Not a sheet

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#3

Re: Refrigerator Condenser

11/04/2016 10:39 AM

Do you have a link to that? It might just be a dust cover.

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#4

Re: Refrigerator Condenser

11/04/2016 11:47 AM

Most of these coils were on the back exposed. Easily got damaged in shipping and handling. So they covered them. It's about loss and fixing those that get damaged.

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#5

Re: Refrigerator Condenser

11/04/2016 12:04 PM

"...My question is that by providing covered to condenser coil is there any heat rejection increase....."

.

Ceretis paribus, it is going to have a lot to do with airflow around the coils. If the cover improves airflow such that heat transfer is better, then ultimately less heat in total should be rejected. If heat transfer from the coils is impeded, then ultimately more heat in total should be rejected.

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#11
In reply to #5

Re: Refrigerator Condenser

11/05/2016 9:50 AM

I checked and it is ceteris paribus.

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#12
In reply to #11

Re: Refrigerator Condenser

11/05/2016 11:05 AM

Excellent! Such a fortuitous and rare find. It defInitely makes for the easiest comparison.

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#6

Re: Refrigerator Condenser

11/04/2016 12:26 PM

The old design was static...

The new design is cooled via fan, and encasement is used to direct air flow through the coils...

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#7
In reply to #6

Re: Refrigerator Condenser

11/04/2016 1:06 PM

A brush ?!?!?!? Who (other than engineers) actually cleans those things?

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#8
In reply to #7

Re: Refrigerator Condenser

11/04/2016 1:18 PM

I'm actually the only guy I know that cleans them....and compressed air works best, although a little messy....have a vacuum cleaner handy....

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#9
In reply to #8

Re: Refrigerator Condenser

11/04/2016 1:24 PM

I grew up with the brush, but I've switched to the compressor and vacuum too.

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#10
In reply to #8

Re: Refrigerator Condenser

11/04/2016 1:30 PM

Using an appliance dolly, rolling it out into the driveway, and using the 409 cleaner and a garden hose works wonders. The 409 just cuts through the greasy dust and crud. But that only happens every five years or so. A vacuum cleaner is used the other times on an annual basis. Same time when I lubricate the bearings in the blower motors on the HVAC system, flush the crud out of the hot water tank, vacuum out the floor registers, . . . . I just dedicate one day to take care of all those 'hidden' drudge tasks.

Gutters have a way of telling you they need cleaning. When the motor bearings start squealing, it's too late.

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#13
In reply to #10

Re: Refrigerator Condenser

11/05/2016 11:49 AM
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#15
In reply to #13

Re: Refrigerator Condenser

11/07/2016 10:50 AM

Doesn't 409 formula have a small amount of ammonium hydroxide in it? When that evaporates the surface pH should re-normalize. Has anyone had corrosion problems after using that product? I had not heard of such.

Best bet: vacuum out the dust once in a while, and stop worrying about it.

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#16
In reply to #13

Re: Refrigerator Condenser

11/07/2016 11:36 AM

Nah, I just rinse it well with water. The basic cleaning solution is one reason it cuts the greasy crud so well.

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#14

Re: Refrigerator Condenser

11/05/2016 8:18 PM

Ha! Brave Sir

I was mentioning how I will wash damn near anything and everything with the garden hose.. Inside or out depending on location, but I thought that might be a bit overboard for most.

I also use a cleaner/degreaser first.

I deleted, but you convinced me to bring it back.

For small jobs I poke a hole in the cap of a two liter bottle and squeeze the water out.

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#17

Re: Refrigerator Condenser

12/12/2016 4:10 PM

So why come here? Why not go directly to the equipment manufacturer and ask there? After all, that's what the telephone is for.

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