Air Conditioning - Car air compressor

Do any body know if an Air Conditioner Car Compressor can be operational with a Golf car electric motor? May another 12 or 24 volts motor? If any body had experimented with this issue I will apreciate any share of
experiences :coffee: .
Thanks
Ray

I've never done it.. But i know it will need lots of power to run the pump. So I'd say a regular battery may last you 2 hours??? I honestly don't know..

Why do you want a/c on a golf cart!? lol

Thanks Jay, the idea it is to use it on a 27 FT boat, every thing start when I went to the marina to buy a cruser and the dealer explain to me the options to run the A/C, for me sounds totally unreal that you have to be connected to the shore power to run the A/C in a boat , if you ever had a boat you know that most of the time you just anchor in the middle of no where so you have no A/C, the options are:
1:A generator, it is a lot of gas not to mention the Co2 and the noise, every body on boat forums are talking about the Honda 2000, I live in FL on the path of the first hit from Katrina and run out of power for a week used a 4000 KW generator and a mere 13000 BTU unit from my RV had a hard time to keep running at day time so I imagine that the boaters running A/C units with the Honda are relatively small probably 5000 BTU and they have to refill in the middle of the night, so it is a partial solution.
2: An inverter with batteries, like you said may be 2 hours, if you have in off space and money to build a battery bank in off for that, also charging back will take a wile
It is out there a 12 volts unit by Glacier Bay, that they claim that it blow with 5000 BTU's, and they want ONLY "$2500" for it not installed, before I put my money on one of those I think it is worth to do some experiments with junk parts.
I been reading about the Danfos 50F & 250 compressors and the Freezer units from http://www.waecousa.com/ , I think that maybe replacing the small fans on the VD-16 evaporator unit and replace it with a regular fan from a Car A/C it may blow as an A/C, my concern about this one it is ice around the Evaporator. Also it is a unit designed for a golf car, So I know that it is out there an A/C compressor that runs with 12, 24 or 36 volts DC with efficiency in off to do the job, if any one knows the brand of the purple enclosure compressor this 12 or 24 volts units use, please tell us, OR like I start this threat, a 36 volt golf car motor to run a Car A/C compressor and start building from there, I just start my research 2 days ago, do any body have any good ideas?

Ray,

When you look at different a/c units that use a piston compressor you will find that the efficiencies of the different units will be fairly close to each other.
There are some slight differences in efficiencies but not enough to make much of a difference in power consumption.

How about this for an idea:
How cold is the water you will be cruising?
I am not familiar with the water temperature where you are but if in cooler water I wonder if you could use just a simple pump to circulate water through a coil to remove the heat.
Here you will suffer hypothermia in the middle of the summer if you fall in. :rolleyes:

Thanks Gregg
I live in Ft Lauderdale Fl my GPS-Deep-Fish finder give a reading last night of 82 Degrees on the water one of my experiments with a 12 volts car Evaporator & Fan and a 52 gallons Cooler full of ICE last 2 1/2 hours, after that it was just a regular fan, I have no choice but to find the 12 or 24 volts compressor, some one will know who manufature the unit. I'm reading about the Danfos 250 but still lower in BTU's for an A/C

Ray,

With that 82 deg for sure you won't be cooling much.
What is the temp as you descend though?
Might not be a big deal to have a way of dragging a hose that it is at a lower depth, especially at anchor.

Do you know exactly how many btu/hr it would take to cool the space?
You have to understand that it doesn't matter what voltage the compressor or fans are.
They will consume the same wattage regardless of the voltage.
If you wind up with a 12 volt compressor the amperage will be ten times greater than a 120 volt one.
It's the btu you need to be concerned with, more btu = more power needed to run it.

Ice by the way will absorb 144 btu/pound of ice.
A 52 gallon cooler of ice likely had around forty pounds of ice in it.
So, 144 x 40 = 5760 btu of heat absorbed.
If you take 5760 / 2.5 hrs you will have been cooling at a rate of 2304 btu/hr.

Edit:
Opps! Took water at ten pounds/gal but you get short changed in the size of a gallon, ours is bigger but you get the idea.

Hi Greg thanks for your advice, the water it is out of the question it dosen't matter how deep you go it will be above 78 degrees, take a look at this cooling unit:
http://www.waecousa.com/page.asp?page=90seriescooling

This unit it is desingned to be connected to a one of this EVAPORATORS

http://www.waecousa.com/page.asp?page=90seriesevap

This 2 units together the cu 200 and the evaporatr VD-14 or the 16, are designed to DEEP FREEZE, at 20 to 30 deegrees F in an anclosed box with insulation. The evaporator come from factory with with a full plastic enclosure and just an small fan for the application of deepfrezee. "What it will happen if I remove the plastics from the evporator covers, open one of the side of the evaporator and in the other side I install a regular turbine fan adpted to get the air thru like a regular air conditioner evaporator in a car?" My knowledge of the HVAC are very limited I just think that the unit will be able to blow like an air conditioner to lower the temperature of the air in the 450 feet area to a 70-75 degrees F, having in mind that it is 35 to 45 degrees difference the unit may be able to work my only concern is to control the probably congelation around the evaporator so I probably need an strong turbine fan. Just looking for an opinion I will do the experimenting next week, what do you think if you please.
Thanks
Ray

Ray,

I admire your persistance but you need to pay attention to the engineering clues I am giving you.
There is a premise that when dealing with basic design you have to consider that you do not get something for nothing.

The units that you linked to are not designed for airconditioning.
They would blow cold air but because the btu capacity will be so low you would need several of these units in order to get enough capacity.

What ever unit you get will need to be designed specifically for airconditioning.
BY your little ice experiment I would say that you would need a unit with at least 5000 btu/hr.
So again, it doesn't matter how you spin it in order to move 5000 btu of heat per hour you will have to provide the energy to do so.

So, we are back to deciding whether to use batteries or a generator.
Because you already know how little time you get on a set of batteries the generator is the obvious choice.

The reality is you will have to bite the bullet and pay what they want for the right equipment.
Hopefully you will be able to get fuel to enjoy it. ;)