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Raluek posted:Have you never turned an air duster can upside down and ignited the resulting stream? You can spray air duster upside down onto snow, and then ignite the snow. #ButteAmerica
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Jun 16, 2017 05:38
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Platystemon posted:Is this a new thing? You're right, that seems to be the way they operate. My last look at it was a long time ago and may have been a specific application. The propane is burned to evaporate the refrigerant directly.
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Jun 16, 2017 14:13
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That video link isn't working but I guess you guys are talking about an absorption cycle refrigerator. You used to be able to by one for the home in the 1950s that you just fill up a burner with kerosene for the heat source. They used ammonia or other really nasty refrigerants though so they fell out of favour and everyone got electricity to their home finally! I guess the RV ones have a less toxic refrigerant these days as well. E: I used to read old 1970s refrig and a/c books on it and back then they were so hopeful it would be the savior of the world, so efficient and cheap to run. It just needs a heat source and solar power improvements are just around the corner. Every house could have a small absorption system chiller plant with some solar panels and the only cost to cool a whole house would be the water pump for the brine chiller system and fans for the coil AHUs 
Fo3 fucked around with this message at 14:44 on Jun 16, 2017 |
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Jun 16, 2017 14:38
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Raluek posted:Have you never turned an air duster can upside down and ignited the resulting stream?? You feel both the cold from the evaporating refrigerant, and the heat from it then burning. Smells awful though Not the igniting part. Never ocurred to me to try (until now). CommieGIR posted:Oh I know, I use it almost exclusively. Ditto. Even if R12 was cheaper, R152a is better. It REALLY works in the R134a systems, where they had to upsize the capacity due to 134's reduced efficiency. rdb posted:Personally, give me propane. It's safe to power the engine with, safe to keep in the trunk, but somehow the flammability is a huge issue with the AC? We can even have hydrogen fuel cells, lithium ion batteries, and CNG busses these days, but not propane in the AC. It's too dangerous. I think the issue is that, as a fuel, it's behind firewalls and outside of the passenger compartment. In the HVAC, it's in the car with you, and legal liability is a bitch. Cop Porn Popper posted:Another thing to consider is your condenser is right front and center on your car. This makes it prone to damage in normal driving due to debris kicked up off the road, then consider it'll be the first thing to be damaged in a more than minor accident. Thats a far cry from a sealed lpg tank in the trunk or lines carrying it up to the motor. Yeah, that, too.
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Jun 16, 2017 17:48
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rdb posted:Personally, give me propane. It's safe to power the engine with, safe to keep in the trunk, but somehow the flammability is a huge issue with the AC? We can even have hydrogen fuel cells, lithium ion batteries, and CNG busses these days, but not propane in the AC. It's too dangerous.
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Jun 16, 2017 18:07
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Darchangel posted:I think the issue is that, as a fuel, it's behind firewalls and outside of the passenger compartment. In the HVAC, it's in the car with you, and legal liability is a bitch. Don;t forget that we are quite happy to have petrol/gasoline in our cars, but it is rare to find 45 litres of it in our kitchen/front room in a thin metal container.
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Jun 16, 2017 20:02
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How much does a propane refrigerant system in a car use anyways? Because the few coolers I've seen that use R290 take a hilariously tiny amount. Like 2oz.
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Jun 16, 2017 20:21
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Fo3 posted:That video link isn't working but I guess you guys are talking about an absorption cycle refrigerator. There's also a whole movie about them starring Harrison Ford. https://www.youtube.com/watch?v=2t1z-gRiNm0
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Jun 16, 2017 20:30
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Darchangel posted:I think the issue is that, as a fuel, it's behind firewalls and outside of the passenger compartment. In the HVAC, it's in the car with you, and legal liability is a bitch. Well thats kinda my point. Apparently R1234YF which is flammable, and when it burns turns into some nasty, nasty stuff, is ok to have in the cabin. And while I am white trash, I personally haven't filled an AC with propane. No reason to while R134A is so cheap.
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Jun 16, 2017 21:10
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Phanatic posted:There's also a whole movie about them starring Harrison Ford. Oh poo poo, that loving movie. I think it was the first time in my life I had ever said to myself, "What the gently caress is the point of this? Why am I watching this movie?"
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Jun 17, 2017 12:07
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Gorilla Salad posted:Oh poo poo, that loving movie. I kept wanting Ford's character to get eaten by whatever creatures lived in that jungle.
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Jun 17, 2017 13:02
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Raluek posted:Have you never turned an air duster can upside down and ignited the resulting stream?? You feel both the cold from the evaporating refrigerant, and the heat from it then burning. Smells awful though Interestingly air dusters here in Australia are mostly R134a, which is a very convenient source of R134a for your cars AC system since you cant buy that poo poo commercially without a refrigeration licence, and you cant get a licence to do work on car systems until you've done a TAFE course in it, and you cant enrol in the tafe course to work on car AC systems unless you have the Cert 2 in Automotive Mechanics thats the prerequisite!
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Jun 17, 2017 15:16
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It's even funner than that. I was a fridgie and the licence was originally state based, so WA had their own and evreyone who did the apprenticeship here had training on every refrig and a/c system, so was licenced to do it all. But then it was changed to a national refrig licence system. Well the motor trades, plumbers, electricians had unions and lobbyists while the refrig trades don't, and all their reps got into the licensing system to run it. When it turned national I wasn't allowed to work on cars because I wasn't a mechanic trained by the motor trades authority, and of course any plumber or electrician could do a short course to get an air con installers licence. Some dumb gently caress dye filling top up yearly fuckwit could work on a car a/c but I couldn't anymore. Every year me an a bunch of workmates sent in the extra $20 for the "auto" portion of the licence and then yelled at them until they'd stamp it "auto" quals as well on the card. It was loving ridiculous that they turned the system against properly trained people that have had a state licence for refrig mechanics for years just to protect the auto industry. Fo3 fucked around with this message at 15:58 on Jun 17, 2017 |
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Jun 17, 2017 15:52
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Meanwhile, in the US, it's a separate, independent test and cert from anything else, and the test is open book, and available online for like $30-40. I got one to buy alternative refrigerants at the time ('90s). On top of that, you don't need it to buy R134a. Not sure on 1234yf. To be fair, the course does cover the basics, rules, and regulations pretty well.
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Jun 17, 2017 17:05
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Armacham posted:Propane can be used as a refrigerant. Raluek posted:Have you never turned an air duster can upside down and ignited the resulting stream?? You feel both the cold from the evaporating refrigerant, and the heat from it then burning. Smells awful though I'm pretty sure that's a war crime. Phanatic posted:There's also a whole movie about them starring Harrison Ford. Harrison Ford as Val Kilmer as Jimmy Buffet.
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Jun 17, 2017 17:39
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Bad Angus! Bad!
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Delivery McGee posted:The other day I saw a brand new Starbucks-branded fridge. Y'know, that thing by the checkstand in a grocery store for you to impulse-buy iced coffee from. It had a LOT of warning stickers about how flammable the refrigerant is, that are removed before the store opens. Harrison Ford as Nick Nolte as Warren Buffett
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Jun 17, 2017 20:17
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Phanatic posted:There's also a whole movie about them starring Harrison Ford. oh holy poo poo thank you. I've been trying to figure out what this movie was for years.
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Jun 19, 2017 20:29
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Crosspost from the Jeep thread. My 'new' replacement engine after taking the valve cover off.    
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Jun 20, 2017 03:06
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Prescription Combs posted:Crosspost from the Jeep thread. Were gonna need a young priest and an old priest.
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Jun 20, 2017 03:09
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It's fine. That's well within the design parameters of that engine.
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Jun 20, 2017 03:41
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Prescription Combs posted:Crosspost from the Jeep thread. You’re using the wrong finger.
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Jun 20, 2017 07:06
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Platystemon posted:You’re using the wrong finger. Will sneak in the shocker next time.
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Jun 20, 2017 08:11
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That's only slightly dirtier than a Craigslist special 4.0 I rebuilt a few years ago, which had been overheated to the point that the piston crowns left aluminum in the top of the cylinders. 
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Jun 20, 2017 17:34
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Prescription Combs posted:Crosspost from the Jeep thread. At least it isn't actual mud. wallaka posted:It's fine. That's well within the design parameters of that engine. Mud probably would be, too...
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Jun 21, 2017 00:18
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From Facebook "Guy buys a low $ turbo kit for his 3v Mustang, loads a N/A tune with 36 degree's of timing, 87 octane, and a waste gate that is plumbed backwards so it never opens. All 8 pistons disappeared, nothing left of them except bits of scrap in the pan"   
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Jun 21, 2017 19:03
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That's pretty impressive.
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Jun 21, 2017 19:45
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NitroSpazzz posted:From Facebook "Guy buys a low $ turbo kit for his 3v Mustang, loads a N/A tune with 36 degree's of timing, 87 octane, and a waste gate that is plumbed backwards so it never opens. All 8 pistons disappeared, nothing left of them except bits of scrap in the pan" 
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Jun 21, 2017 19:55
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Haha oh my god that rules, every single piston is gone. A+++ explosion.
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Jun 21, 2017 23:27
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I'm surprised the waste gate or plumbing didn't go before the pistons.
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Jun 22, 2017 00:07
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Steel/iron will almost always win out over aluminium.
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Jun 22, 2017 00:12
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Call up NASA and warn them of new space debris.
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Jun 22, 2017 00:19
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DJ Commie posted:Steel/iron will almost always win out over aluminium. Replace that cheap commie poo poo with good solid american aluminum and let's try it again
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Jun 22, 2017 00:24
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DJ Commie posted:Steel/iron will almost always win out over aluminium. How about silicone hoses and irrigation piping cobbled together with whatever hose clamps were available at <your local equivalent of Bunnings Warehouse>?
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Jun 22, 2017 00:43
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IPCRESS posted:How about silicone hoses and irrigation piping cobbled together with whatever hose clamps were available at <your local equivalent of Bunnings Warehouse>? Eh, seems to "work" for Roadkill!
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Jun 22, 2017 01:30
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NitroSpazzz posted:From Facebook "Guy buys a low $ turbo kit for his 3v Mustang, loads a N/A tune with 36 degree's of timing, 87 octane, and a waste gate that is plumbed backwards so it never opens. All 8 pistons disappeared, nothing left of them except bits of scrap in the pan" How fast was the one 1.4 mile run it made?
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Jun 22, 2017 02:42
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NitroSpazzz posted:From Facebook "Guy buys a low $ turbo kit for his 3v Mustang, loads a N/A tune with 36 degree's of timing, 87 octane, and a waste gate that is plumbed backwards so it never opens. All 8 pistons disappeared, nothing left of them except bits of scrap in the pan" Makes me feel way better about my Ghetto Turbo build. At least I took steps to keep it safe.
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Jun 22, 2017 04:02
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"Pistons, party of eight, Pistons, party of eight, your table is ready in the oil pan."
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Jun 22, 2017 04:13
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I bet that made a noise.
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Jun 22, 2017 04:20
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MA-Horus posted:Eh, seems to "work" for Roadkill!
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Jun 22, 2017 08:56
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they dyno'd the 5.0 in the latest engine masters episode. It makes power.
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Jun 22, 2017 09:01
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