Anyone have the link to homemade AC

Re: Anyone have the link to homemade AC *LINK*

Skip in Falls Church

>The thread started here:

http://www.woodcentral.com/cgi-bin/handtools.pl?frames;read=68284

and the link is below


http://mirror.lerfjhax.com/www.eng.uwaterloo.ca/~gmilburn/ac/

Re: Anyone have the link to homemade AC

R.J.Whelan

>I printed this article for a friend and he built it according to plan: he said it worked really well for one room; only problem was the ice melted so quickly that refrigerator couldn't keep up with ice making. The key seems to be having really cold water - when I asked him why he didn't get his water from the creek in his yard (snow melt) he looked kind of non-plussed and said he'd have to give it a try ... rj

Thanks Skip!

Scott Burr in down to 76 deg Ben Lomond,CA

>I thought the guy was from Texas. Instering to see this is from our friends from the GWN. Thanks again!

Thanks RJ...

Scott Burr in down to 76 deg Ben Lomond,CA

>1+ room is all I'm asking out of it. I'm thinking about a sealed system with a pump that goes through a bucket of dry ice or salted ice. Am I crazy?????

Rain on thurs and 68 deg., now wammao...A week of nasty heat to look forward to, thanks Emile, you blew the morning fog outta here. Thank goodness for AC'ed movie theaters. Willy Wonka was fun, liked the book better (grew up on it). First time I'v been to a movie in a while dark and cool... very nice.

Re: Anyone have the link to homemade AC

William Duffield, on the Cohansey

>You need to go watch an old movie, starring Harrison Ford, called The Mosquito Coast. Then, go take a course in thermodynamics. Back in college, a friend of mine figured out he could lose weight by simply making sure he put enough ice cubes in his drinks. The problem was a bit of confusion between the amount of heat in a calorie vs. in a Calorie.

Re: Thanks RJ...

R.J.Whelan

>Might work; but I think closed systems pretty much depend on pressure differential to work. I was thinking a more efficient liquid might be 50/50 antifreeze and water in a closed, non pressurized system ... rj

That's what I've been thinking too.

Scott Burr in up to 81 deg Ben Lomond,CA

>Kinda like the Jocky boxes(?) used to cool beer. A mix of antifreeze and water with a small pump to circulate it through a ice chest filled with dry ice or plane old ice. Whould this be consider a pressureized system?

Thanks, Scott

Re: That's what I've been thinking too.

R.J.Whelan

>I don't think so, as you'll probably pump from and return to reservoir of some sort; my thinking was something like an aquarium pump would move enough fluid to allow decent cooling of the liquid while in the cooler.

Of course you could also circulate the coolant through a small frig ($55 on sale at KMart this weekend) to keep the ice fresh longer. This is starting to sound a little like the "Bob and Ray" routine about the gentleman who's hobby was rebuilding light bulbs - he had $50,000 invested in equipment, but hadn't had to buy a light bulb in three years :-)

Relocating heat

Bill Houghton, Sebastopol, CA

>Air conditioning, of course, just relocates heat, adding heat in the process since it can never be 100% efficient. You certainly wouldn't want the fridge making the ice to be in the same room as you were cooling.

Hey, Scott, it's coming in cool up here this afternoon. I can almost smell the fog. There's hope for you yet!

Ahhhh we're on the same page....

Scott Burr in up to 81 deg Ben Lomond,CA

>The 50/50 coolant resides in the aquariam pump (my thinking exactly BTW) a closed system. It's circulated throughy a sullrey, in the coooling vat. So to speak.

You must be sweaterling up there or getting rained on 1 of the 2...

Again thanks!

Bill, come here and get it...

Scott Burr in up to 81 deg Ben Lomond,CA

>My wife handles this worse tham me... (I graduated ASU IT'S NOT HOT UNTILL 110.) Saw it (the fog) off the coast today. Only 91 today...

Scott, off to have a very lite beer and start the B'bque...

Thanks for the update Bill!

Re: Ahhhh we're on the same page....

R.J.Whelan

>Scott ... when I was driving home from the shop last Monday at 6:15 the thermometer on the bank read 112 degrees. It's so dry up here nobody uses airconditioning (9-12%); we use evaporative (swamp) coolers - really cheap to run and good for 25-30 degrees cooling with the new age mats. Of course during the two weeks of monsoon due next month they aren't that great ... rj