Using exhaust to heat SVO system.

[Gen-Erix Senior Member Find all posts View Profile Close Gen-Erix]

Havent seen too much on this.
(specifically referring to EXHAUST STACKS)

What do you guys think about the subject.
Single/Dual Exhaust.

[W123 x 2 Senior Member Find all posts View Profile Close W123 x 2]

Re: Using exhaust to heat SVO system.

Four days ago there was a post on this.
Michael

[Gen-Erix Senior Member Find all posts View Profile Close Gen-Erix]

Re: Using exhaust to heat SVO system.

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(specifically referring to EXHAUST STACKS)
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[W123 x 2 Senior Member Find all posts View Profile Close W123 x 2]

Re: Using exhaust to heat SVO system.

OK, so what "specifically" do you want to know?

Generically it is irrelevant whether they single or dual, so long as they provide as little resistance to gas flow as possible. End of story.

The photo looks like the latest in superficial American "all show and no substance" ideas. What a total waste of space, time, money , energy - shall I go on?

Michael

[W123 x 2 Senior Member Find all posts View Profile Close W123 x 2]

Re: Using exhaust to heat SVO system.

OK, I confess I was in a grumpy mood - red wine hang over. Perhaps the exhaust stacks run through the veg oil tank heating the oil on the way through? That could work, not sure if it's worth the effort though - heaps of tank mods required. Might be good if you're running lard.

Gen-Erix, if you genuinely want an answer to something, the quality of the answer is directly related to the quality of the question and information you provide. The photos you provided may look good but tell us two fifths of stuff all about what's going on. Give some details of the workings, and you'll get a better response.

Cheers, Michael

[Gen-Erix Senior Member Find all posts View Profile Close Gen-Erix]

Re: Using exhaust to heat SVO system.

OK, I confess I was in a grumpy mood - red wine hang over. Perhaps the exhaust stacks run through the veg oil tank heating the oil on the way through? That could work, not sure if it's worth the effort though - heaps of tank mods required. Might be good if you're running lard.

Gen-Erix, if you genuinely want an answer to something, the quality of the answer is directly related to the quality of the question and information you provide. The photos you provided may look good but tell us two fifths of stuff all about what's going on. Give some details of the workings, and you'll get a better response.

Cheers, Michael

thanks for being in an open frame-of-mind now


I figure it could run like your run-of-the-mill secondary SVO tank
(with the toolbox like tank close to the cab)
then the tank would have 2 holes drilled (top and bottom) to allow the stack
(4 holes if going dual... naturally)
and an adequate-sized pipe welded on
(almost like a vertical "tunnel" so to speak)

add whatever insulation material one would do (if any) and once properly positioned and secured
you could just drop the stacks in and tighten up

see both pictures and superimpose

that way once you start the truck
the tank would INSTANTLY be introduced to heat
(meanwhile coolant heat isnt instanteous)
and when compared with running traditional coolant lines in an SVO tank...
the work, money and time is pretty much the same, if not better

NOTE:
I do NOT know how HOT the temperature would run
BUT
i would assume that gases coming straight out of a header would run pretty hot


and personally, i dont give a crap if stacks look "cool" or not
(luckily, im not that judgemental nor superficial)
but i believe it is legal to have stacks in the US if youre running diesel
and its just something to keep in mind as a viable option

[Tony From West Oz Vice Chairperson of WARFA Find all posts View Profile Close Tony From West Oz]

Re: Using exhaust to heat SVO system.

thanks for being in an open frame-of-mind now


I figure it could run like your run-of-the-mill secondary SVO tank
(with the toolbox like tank close to the cab)
then the tank would have 2 holes drilled (top and bottom) to allow the stack
(4 holes if going dual... naturally)
and an adequate-sized pipe welded on
(almost like a vertical "tunnel" so to speak)

add whatever insulation material one would do (if any) and once properly positioned and secured
you could just drop the stacks in and tighten up

see both pictures and superimpose

that way once you start the truck
the tank would INSTANTLY be introduced to heat
(meanwhile coolant heat isnt instanteous)
and when compared with running traditional coolant lines in an SVO tank...
the work, money and time is pretty much the same, if not better

NOTE:
I do NOT know how HOT the temperature would run
BUT
i would assume that gases coming straight out of a header would run pretty hot
SNIP

I would say EXTREMELY HOT. Considering that the turbo on a diesel can run close to red hot at full load, I am sure of this.

How would you propose to regulate the heat applied to the fuel tank, especially considering the consumption of fuel would present a near empty tank or a full one, or various levels between.
How would you ensure that the oil did not get too hot?
How would you ensure maximum heat transfer to a cold tank, bearing in mind that you don't want the tank to overheat when it warms up?

Coolant cannot get so hot that it overheats the oil. It is a regulated heat. The only time it can get over ~120°C is if the engine is seriously overheating, and you then have more important things on your mind than the fuel temperature.

I recommend against putting heat exchangers inside the fuel tank. Any coolant leak is into the fuel. I recommend using a heat exchanger welded to the underside of the fuel tank, to provide 2 degrees of separation between coolant and fuel. Appropriate insulation will enhance heat retention.
Tony