The ultimate WVO/AC mod - PeachParts Mercedes-Benz Forum

Whiskeydan · #1 06-17-2010, 03:59 PM

Here's the plan...

Dump WVO directly into the tank... but wait... it needs to be heated right?
Oh yea... and then there's that 'marginal' AC.

Lets just kill two birds (and one MB) with one stone.

How about running the hi side from the compressor to the fuel tank then back to the condensor??? A "hose in a hose" such that the hot refrigerant can be cooled while adding heat to the wvo you plan on running.
No need for a parallel condensor AND, if you spring a leak... FREE PROPANE INJECTION from the HC refrigerant you're using.

But wait... with all that added fuel you'll need to get rid of that old restrictive air breather. You could even suck air from the cabin and since it will be so cold no need for an intercooler.

Just a thought...

rrgrassi · #2 06-17-2010, 04:33 PM

I wonder if there is some one who would actually try this...

Any input there Jimmy?

whunter · #3 06-17-2010, 04:48 PM

Quote:

Originally Posted by Whiskeydan

Here's the plan...

Dump WVO directly into the tank... but wait... it needs to be heated right?
Oh yea... and then there's that 'marginal' AC.

Lets just kill two birds (and one MB) with one stone.

How about running the hi side from the compressor to the fuel tank then back to the condensor??? A "hose in a hose" such that the hot refrigerant can be cooled while adding heat to the wvo you plan on running.
No need for a parallel condensor AND, if you spring a leak... FREE PROPANE INJECTION from the HC refrigerant you're using.

But wait... with all that added fuel you'll need to get rid of that old restrictive air breather. You could even suck air from the cabin and since it will be so cold no need for an intercooler.

Just a thought...

JackG · #4 06-17-2010, 07:44 PM

Quote:

Originally Posted by Whiskeydan

Just a thought...

And my thought is "what have you been smokin"

everyone knows that the A/C makes the car run
hotter, there for you MUST run the heater hoses through the fuel

jltcasper3 · #5 06-17-2010, 08:39 PM

i think plumbing the ac high side into the wvo system would not heat it very fast, and when it's up to temp, would your ac work as good ????. Also u would need an in tank heat exchanger that could handle the high side ac pressure, your coolant one now would not work. And u would still need coolant to heat your other heat exhangers so why tear into 2 different systems. You would need alot more referigerant to go to the back of the car also. More expensive to do it right.

Whiskeydan · #6 06-17-2010, 09:43 PM

Quote:

Originally Posted by jltcasper3

i think plumbing the ac high side into the wvo system would not heat it very fast, and when it's up to temp, would your ac work as good ????. Also u would need an in tank heat exchanger that could handle the high side ac pressure, your coolant one now would not work. And u would still need coolant to heat your other heat exhangers so why tear into 2 different systems. You would need alot more referigerant to go to the back of the car also. More expensive to do it right.

You think?

vstech · #7 06-17-2010, 10:32 PM

Quote:

Originally Posted by Whiskeydan

Here's the plan...

Dump WVO directly into the tank... but wait... it needs to be heated right?
Oh yea... and then there's that 'marginal' AC.

Lets just kill two birds (and one MB) with one stone.

How about running the hi side from the compressor to the fuel tank then back to the condensor??? A "hose in a hose" such that the hot refrigerant can be cooled while adding heat to the wvo you plan on running.
No need for a parallel condensor AND, if you spring a leak... FREE PROPANE INJECTION from the HC refrigerant you're using.

But wait... with all that added fuel you'll need to get rid of that old restrictive air breather. You could even suck air from the cabin and since it will be so cold no need for an intercooler.

Just a thought...

you stole my idea...
I'll show you the pictures this weekend...
actually have a coil in the intake to cool the turbo charge... separate compressor to cool the charge...
the wvo thing is a neat thought... hmmm I'll think on that...

layback40 · #8 06-17-2010, 10:47 PM

Hmmmmm, there must be something in the water over there at the moment!!
You could always convert your ac into reverse cycle & do away with the heater.

vstech · #9 06-17-2010, 11:15 PM

nahh, not enuf heat energy in the winter time to adequately heat the cabin...
which is why heatpumps need aux heat... the car could perform aux heat functions... kinda energy redundant though. max eff would come from the engine waste heat, not from compression energy of the a/c...

lvfast1 · #10 06-17-2010, 11:34 PM

Quote:

Originally Posted by jltcasper3

i think plumbing the ac high side into the wvo system would not heat it very fast, and when it's up to temp, would your ac work as good ????. Also u would need an in tank heat exchanger that could handle the high side ac pressure, your coolant one now would not work. And u would still need coolant to heat your other heat exhangers so why tear into 2 different systems. You would need alot more referigerant to go to the back of the car also. More expensive to do it right.

I quoted the above about just about leaving the radiator mounted condenser for once fuel is heated . But my comments are directed to original poster in light hearted fun.

The good: It might work well if you sent the refrigerant to the fuel tank to exchange the heat first but still allowed it to go to the condenser coil afterwards for once the fuel got heat soaked. A very efficient exchange for the refrigerant into the fuel at first.

The bad : (1) You need the fuel warm immediately from what I understand and it would take some time to heat the fuel in the tank. (2) As stated above a much higher amount of refrigerant and oil would need to be accounted for. (3) All new connections to the refrigerant system are possible leak points. (4) The time you need the fuel heated the most (winter) you most likely wont be needing a/c or added condenser efficiency.

A+ for creativity, cleverness and comedy

Arlo

JimmyL · #11 06-18-2010, 01:04 AM

Quote:

Originally Posted by rrgrassi

I wonder if there is some one who would actually try this...

Any input there Jimmy?

I'm experimenting with rolling down all the windows and covering my self with butter!!
The cooling is margarinal.......

Whiskeydan · #12 06-18-2010, 07:37 AM

Quote:

Originally Posted by JimmyL

I'm experimenting with rolling down all the windows and covering my self with butter!!
The cooling is margarinal.......

This will NOT work with MB tex!

How many times do I have to tell you Jimmy that butter and MB tex are NOT compatable??? It is only compatable with leather. I believe it is stated in the FSM somewhere.

You failed to add in your sig line whether your car has MB Tex or leather. That should be required.

Plus, your "marginal" cooling could be due to using "margarine", one of the butter substitutes.

vstech · #13 06-18-2010, 08:15 AM

WD, he did say his cooling was margarinal, not marginal... and as you and everyone else out there know, Jimmy is not one to add in extra letters accidentally...

Whiskeydan · #14 06-18-2010, 08:19 AM

Quote:

Originally Posted by vstech

WD, he did say his cooling was margarinal, not marginal... and as you and everyone else out there know, Jimmy is not one to add in extra letters accidentally...

I see...

Pre-coffee post.

KarTek · #15 06-18-2010, 08:58 AM

Dan, this is an interesting idea and it fits with a project I'm working on now. But I'm working in a less automotive way.

I'm developing a heating system for my friend's pool that uses waste heat from the home AC unit. When the pool reaches the desired temp, a switchover valve simply puts the condenser back into the freon circuit and turns the fan back on.