lots of install photo's at this link
http://vegrev.com/vegrev%20website%20projects.html

omar
www.omarsales.com

read more here about nate_powell install
http://biodiesel.infopop.cc/eve/forums?a=tpc&s=44760975...141009842#8141009842


Omar
www.omarsales.com

good read about foam covers

http://www.burnveg.com/forum/viewtopic.php?t=189&postda...storder=asc&start=30


Omar
www.omarsales.com

Here is a 10 plate I used in an 03 Jetta wagon install last weekend. I insulated it w/
fiberglass and installed it in the plastic air duct under the rad
support, it fit nice in there!. I wish I
did not have to use those ugly couplers, I got them at the local hardware store since the FPHE unfortunately had male threads. I can get these 10 plates w/ 1/2 NPT
female but it will take 6 weeks to get them. This car had excellent veg temps in no time, pretty
much hit 180 in a few minutes, with little change whether idling or
driving.
I'm doing another one like this this weekend, i was a little concerned about wind hitting the FPHE, but the insulation seems to have taken care of that.

Very slick!!

See this Kaori link for recommended install orientation of FPHE.

I have had no problems installing them horizontally. I did counterflow through it and the coolant ports are on the bottom. Sometimes it is just not practical to install them vertically, but I will when I can. I can tell you that this FPHE works excellent in this position and both fuel and coolant primed easily.

quote:

canolafunola
Member
Posted 13 May 2008 06:14 PM Hide Post
See this Kaori link for recommended install orientation of FPHE.
Registered: 08 May 2005

I'm suprised that Kaori recomends against installing FPHEs with the ports up.

I may be missing something, but it seems to me that installing these HEs ports up would be the best way to guarantee that air bubbles would blow out. I know that air bubbles can reduce efficiency greatly, but how would bubbles accumulate in an HE when the bubbles could simply flow out the top outlet ports?

They even recoment installing HEs vertically with counterflow. I know that counterflow is most efficient, but when the HE is vertical, one fluid path must force fluid downward. If that downward moving fluid had bubbles pushed into it, the fluid path may open up enough inside the HE (reduced restriction) to allow the bubbles to remain inside the HE continually trying to rise up while incoming fluid blew the bubbles back down.

Am I wrong here? Did I miss some technical detail?

Bump.

This is like the 10th time I've bumped this thread.

Isn't there anyone who can explain why installing a FPHE with the ports up won't allow proper function?

I assumed that having the ports up would allow air bubbles to rise up and out of the HE.

Experienced input or solid technical knowledge would be appreciated.

quote:

it quickly gets personal;

What?

Subjects don't "quickly get personal", people do.

Maybe if we were more patient with each other and assumed less bad motive, we'd get past personal stuff.

John, you were right. On page 3, Tony (W Oz) explained why vertical installation is best. I understand now.

I still think that bigger air bubbles would rise up and out of a FPHE, but I guess an accumulation of smaller bubbles could significantly impact heat transfer.

I just didn't want to read the whole thread, that's all (lazy).

Welder,
I just came across this thread again, in searching for other information.
Where the coolant flow is strong, the coolant passages will purge the air out in any orientation as the flow thru the plates id turbulent and it will break up large bubbles into tiny ones, which will be swept along with the coolant. It is different for the veggie oil as the flow is significantly less.
I made the recommendations, in line with Kaori, to avoid lengthy discussions on the best way of mounting them.
Providing the oil ports are at the top of the HE (when on its side, I believe that you will get virtually the same heat transfer to the fuel as if it was mounted vertically. This may not occur if the coolant flow is low.
Mounting the FPHE on its back could allow some air bubbles to remain in the HE, but they would also eventually come out, due to the varying forces on the vehicle during driving.
If the FPHE were mounted with the connections face down, you would have great difficulty in purging the air from the fuel galleries, and coolant galleries, if you have low coolant flow.

Incidentally, the fuel capacity of the most common FPHE on eBay is 18mL per passage (30 plate HE have 15 passages for oil and 15 for coolant) thus the oil capacity of a 30 plate FPHE would be 15*18=270mL. a 20 plate unit would have 180mL capacity, and a 10 plate unit, 90 mL.

Regards,
Tony

quote:

Originally posted by welder:

quote:

canolafunola
Member
Posted 13 May 2008 06:14 PM Hide Post
See this Kaori link for recommended install orientation of FPHE.
Registered: 08 May 2005

I'm suprised that Kaori recomends against installing FPHEs with the ports up.

I may be missing something, but it seems to me that installing these HEs ports up would be the best way to guarantee that air bubbles would blow out. I know that air bubbles can reduce efficiency greatly, but how would bubbles accumulate in an HE when the bubbles could simply flow out the top outlet ports?

They even recoment installing HEs vertically with counterflow. I know that counterflow is most efficient, but when the HE is vertical, one fluid path must force fluid downward. If that downward moving fluid had bubbles pushed into it, the fluid path may open up enough inside the HE (reduced restriction) to allow the bubbles to remain inside the HE continually trying to rise up while incoming fluid blew the bubbles back down.

Am I wrong here? Did I miss some technical detail?

at some point both fluids will have to travel upwards or downwards within the FPHE... counterflow increaces efficiency since it is flowing the opposite direction of the other fluild as opposed to 'chasing' it through the plates...

quote:

If the FPHE were mounted with the connections face down, you would have great difficulty in purging the air from the fuel galleries, and coolant galleries, if you have low coolant flow.

Yes, I agree with you on that. I can't imagine anyone installing a FPHE with all 4 ports pointing down. It'd be a bubble trap for sure.

I just figured that "all ports up" would be okay since any bigger bubbles could still rise up and out, but I guess it's better to install the HE with the plates vertical.

quote:

at some point both fluids will have to travel upwards or downwards within the FPHE... counterflow increaces efficiency since it is flowing the opposite direction of the other fluild as opposed to 'chasing' it through the plates...

Yes, crossflow is best, but what does crossflow have to do with getting rid of air bubbles? Maybe I wasn't reading your post right...

1980 Toyota HJ45 Landcruiser Troopcarrier

http://www.burnveg.com/forum/viewtopic.php?t=56

have a good view
Omar
www.omarsales.com

93 6.5 chevy

more at this link
http://biodiesel.infopop.cc/eve/forums/a/tpc/f/159605551/m/8901054852

Omar
www.omarsales.com

http://www.burnveg.com/forum/viewtopic.php?t=357

centrifuges with fphe

have a good read
Omar
www.omarsales.com