Blower question

[Askal]

What would the exit temperature of a 5.9 blower with an ambient air temperature of 100 degrees? Average 12hg load. no engine exhaust and no heat capture. thanks in advance.
Al Paulsen

 

[Green Clean LLC]

140-150

 

[dealtimeman]

250 and higher and would easily kill that plant if directly pointed at it.

I have hit mine with a Flir after one hour of operation and we were At 240 plus without load a few minutes after we completed the job was just trying to see if I could cool the blower down and see if it was beneficial for long time operational benefits.

 

[Askal]

more than I thought. Just contemplating what kind of plumbing material I need to go to the silencer. I have a IR camera so I will check.

 

[dgardner]

140-150

I read numbers close to that, looks more like 130-140 on my tiny phone, but keep in mind those numbers are temperature rise. Added to the 100F ambient could get you a discharge temp of 230ish. Of course I imagine the inlet air is coming from inside the house and is probably closer to 70, you'd still get a 200ish discharge temp.

 

[Askal]

250 and higher and would easily kill that plant if directly pointed at it.

I have hit mine with a Flir after one hour of operation and we were At 240 plus without load a few minutes after we completed the job was just trying to see if I could cool the blower down and see if it was beneficial for long time operational benefits.

this is not related to a plant kill. But I once killed a mature lace leaf maple to the tune of 1500.00.

 

[dealtimeman]

A lot of factors come into play that a spec sheet will not show you.

I have seen the temp on the blower casing at 270 .
I think I have pics will get them up if I can find them

 

[dgardner]

A lot of factors come into play that a spec sheet will not show you.

I have seen the temp on the blower casing at 270 .
I think I have pics will get them up if I can find them

I thought it went without saying that you can't just read a number off a table and hope it's exactly what you would measure in the field. The actual measurement could be higher - or lower. I assumed Al was looking for a ballpark number.

Are you saying you have seen a casting temp of 270 on a 59 blower pulling 12" hg? With normal ambient and inlet conditions? That would be unusual.

 

[dealtimeman]

I thought it went without saying that you can't just read a number off a table and hope it's exactly what you would measure in the field. The actual measurement could be higher - or lower. I assumed Al was looking for a ballpark number.

Are you saying you have seen a casting temp of 270 on a 59 blower pulling 12" hg? With normal ambient and inlet conditions? That would be unusual.

Yes inside of a box truck that has a fresh water tank radiating 160 degrees temps 4 inches from blower and the sun beating down of 50 plus feet of vac hose.

So very possible and the truckmount has worked quite a bit in those conditions over the last 17 years that way.

 

[Askal]

so much for plastic hose I guess. will check on metal 4" flex. Thanks for the info.
Al

 

[dgardner]

Marine exhaust hose? Pretty expensive though...

This one's rated 280°

http://www.starmarinedepot.com/trident-flex-marine-corrugated-exhaust-hose-4-id-x-12.5-foot.html

 

[dealtimeman]

Yes that should work.

 

[KevinD]

I use the trident silicone boat hump hose connectors for wet exhausts.
Good for 350 degrees

http://www.ebay.com/itm/Trident-Rub...ash=item25c025364c:g:Ih4AAOSw0fhXiQmb&vxp=mtr