Intercooled Air Temp. ???

[Neu-rich]

O.K. I Have A 6030 With A Intercooler... Can Someone Explain This... Say The Outside Air Temp. Is 90 Degrees... Now The Intercooled Air Is Cooled By Coolant From The Radiator Say Its 150 Degrees... Now Wouldnt The Air Coming Threw The Air Cleaner (60 Degrees Cooler) Be Better For The Engine.. I Know Diesels Like Cooler Air... I Just Dont Understand, What Am I Missing..

Jeff

 

[A.P.]

Compressing the air through the turbocharger causes the air temperature to rise.

 

[jon aller]

More specifically, the inter cooler is placed between the turbo and the intake manifold. As AP stated, when you compress air the temp of the air raises.

 

[VicS]

Yes it would be better to make the air as cool as possible. The posts above are right the turbo heats the air while compressing it. Also I don't know what they (JD) were thinking. why didn't they use a air to air intercooler in front of the radiator. I guess they hadn't been invented yet. The new intercoolers are great. I have a M11 Cummins in a truck. With it just idling, you can feel the temp difference with your hands the outlet will actually be cooler than the ambient air temperature. Vic

 

[Anonymous-0]

Most charge air coolers are used when boost is about 15 PSI or higher. Turbo outlet temp can be 400 degrees or more, even 190 degree coolant will make air charge more dense. Find a copy of Hugh McInnes turbo book, is very good reading.

 

[Indiana Ken]

(quoted from post at 08:59:57 02/03/12) O.K. I Have A 6030 With A Intercooler... Can Someone Explain This... Say The Outside Air Temp. Is 90 Degrees... Now The Intercooled Air Is Cooled By Coolant From The Radiator Say Its 150 Degrees... Now Wouldnt The Air Coming Threw The Air Cleaner (60 Degrees Cooler) Be Better For The Engine.. I Know Diesels Like Cooler Air... I Just Dont Understand, What Am I Missing..

There are trade offs between the two designs. It is true that air to air can offer better charge cooling since ambient air can be cooler than radiator water. However, in the winter idling or running at low power the water system can warm the charge air which I think is better for the engine and or economy. Air to air is best to maximize power and for a working tractor there are other considerations. What Deere's thought process was is anybodys guess, however I always liked the coolant to air systems for a tractor.

 

[Superih]

An intercooler (water to air) is more efficient at cooling the air, using around 40% the cooling area when compared to an aftercooler (air to air). If you get the chance to look at the intercoolers used with icewater on super stock semis you will be amazed on the size.

 

[buickanddeere]

The Deere engine coolant intercooler was not
designed for all out max power.
As previously stated it was to keep intake temps
within a "range" instead of as low as possible.
A tractor putting around idling or at light loads
will benefit from having the intake air "pre-heated"
by the engine coolant intercooler.