Fan for bread proover

[flyingsparks]

I am looking for a fan to go inside a bread proover in a local bakery. (Machine is very old and spare parts unlikely to be available)
It needs to be about 140mm diamater
I have looked at oven fans but the blades obviously will not pick up the air and blow it out the top due to the design of them. This fan will need to sit at the top of a chamber where the element is to blow the hot air out and into the oven
Temperature inside is about 50oC I believe.
Any ideas?

 

[stillp]

What about a computer case fan? Should cope with 50°C.

 

[flyingsparks]

It will also have a high humidity in there. PC Case fan sounds like it may be a good idea..

 

[Robin0577]

I'd say something in the style of a PC case fan but a bit more substantial. PC fans are usually lightweight plastic 12vDC efforts, but more industrial electronic equipment uses heavier, mains powered, aluminium versions of the same sort of thing.
This, for instance http://uk.rs-online.com/web/p/axial-fans/4684983/

 

[JohnD]

let's suppose air goes in at the bottom and out at the top.

A fan can be positioned in either of these places.

The top will be warm and humid. The bottom won't.

The proving chamber is for the yeast to grow and multiply, so will be at about blood heat. Not 50C.

 

[JohnW2]

What about a computer case fan? Should cope with 50°C.

Indeed - and, as JohnD has said, it probably won't be anything like as high as 50°C. As far as I am aware, yeast dies at 55°C or thereabouts, and the optimum temp for dough making is closer to 30°C.

Kind Regards, John

 

[flyingsparks]

My mistake. After my initial post I googled and saw the temp would be around 35C. That fan robin0577 linked to looks like it would do nicely.
Thanks.

 

[stillp]

PC fans are usually lightweight plastic 12vDC efforts, but more industrial electronic equipment uses heavier, mains powered, aluminium versions of the same sort of thing.

Have you seen the fans that serious PC gamers use?

 

[JohnW2]

Have you seen the fans that serious PC gamers use?

I thought they used water cooling these days!

Kind Regards, John

 

[stillp]

And what do you think happens to the heat that's carried away in the water?

Slightly off-topic, a friend of mine who lives alone in sheltered housing inherited a substantial sum from a relative he didn't know existed. Not having much to spend it on, he built himself a flight simulator PC, with 4 graphics cards and wrap-around monitors. Shortly afterwards he had a visit from the police, who had used a thermal imaging camera in their chopper to identify possible cannabis farms...

 

[Robin0577]

Have you seen the fans that serious PC gamers use?

Yes, they're generally covered in bright blue LEDs because looking cool is just as important as actual cooling apparently.

 

[JohnW2]

And what do you think happens to the heat that's carried away in the water?

Circulate it through their house's radiators?

Kind Regards, John