Hotplate coolant/SVO heat exchanger?

[Tbar]

How would a regulated return from the heads with a larger cooler work with the WVO?

For that mater...........what is too hot for diesel/wvo?


Tbar

 

[hheynow]

For that matter...........what is too hot for diesel/wvo?

Exactly! On the other hand, how cold can you start a vehicle on a 30% WVO blend? Do you really want gummed glycerin on your injector nozzles? How warm do the plug in heaters get the engine blocks?

I have ZERO experience with WVO/#2 blends... ...so just ignore me! -popcorn

 

[JOAT]

I'd like to research and experiment with this more myself, but haven't had much time...
Here are some misc quotes from the web;

Diesel fuel differs from gasoline in several ways. Diesel fuel is heavier and "oilier" than gasoline. It evaporates much more slowly because it is composed of larger hydrocarbon molecules, which have higher boiling points, typically 150 °C to 370 °C.


snip... it is flamable with boiling ranges between 150-380°C and can give off flammable vapours above 56°C (132°F)

The impression I get is that the small quantity of aromatics in the fuel are the only part that would boil off easy. Good quality fuel should have few of these. I'd guess the less diesel smell from the fuel the higher temp it could handle. Incidentally, the aromatics decrease power and increase smoke from the fuel...

If you controlled the tank temp to stay under 120°F, you should be OK. Fuel line temp shouldn't be an issue as long as the fuel is under pressure.

 

[hheynow]

Bill, just saw this HEAT EXCHANGER on ebay.

 

[CHPMustang]

Interesting design.decription and photos,thanks for sharing the link

 

[CHPMustang]

One thing I've noticed is a warmed engine prefers alike warmed Diesel fuel sooo I should have the 26 plate exchanger here within a few days.

I'll tackle the install with Tbar's assistance early next week,I'll also install a couple coolant ball valves at the exchanger and if possible a temp gauge for the coolant.

 

[hheynow]

One thing I've noticed is a warmed engine prefers alike warmed Diesel fuel sooo I should have the 26 plate exchanger here within a few days.

I'll tackle the install with Tbar's assistance early next week,I'll also install a couple coolant ball valves at the exchanger and if possible a temp gauge for the coolant.

26 is toasty warm
Bill, If you're teeing your coolant loop off of your heater core hoses put the ball valves at each tee. That way you can turn the coolant loop on and off at the correct junction. What size ID hose will you be using? Mine is 3/8" ID and I should have gone with 1/2" for faster and better heat transfer.

Another option that really works. I have that coil design on my rear Racor that sits under my truck near the rear tank. Once warm it raises the fuel temp 50*F. I did it because I fear fuel filter restriction with the filter at cold ambient temps since I'm trying to buck mother nature by running B70-D20-K10 these days. So as long as my tank has not gelled, I high idle it for a few minutes then I'm good to go.

 

[CHPMustang]

I believe the coolant lines running to the front and rear core are 3/4" so I should be set there but as far as fitting ball valves in the same area where the lines enter the core may be a tight fit as the lines that go to the rear core and the vacuum actuated shut off valve are in the same area.

I anxiously look towards getting this exchanger in so I can get warm fuel to the injectors as we be doing the 20's here lately and they really chatter on cold fuel.

 

[CHPMustang]

The brown truck made it's way by today with the heat exchanger,just need to fabricate a mounting bracket which will be located between the Dahl100 and the fuel pump. It's quite a stout unit for it's size.

 

[Tbar]

Does it have mounting holes Bill ???


Tbar