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How can those Chinese water heaters work?
Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas?
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How can those Chinese water heaters work?
Bruce Farquhar wrote
Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? The current flows thru the water and that heats it. Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. That only affect how long it takes to heat the water. I assume the resistivity changes due to impurities like lime in hard water areas? Yep. |
How can those Chinese water heaters work?
On Thu, 29 Nov 2018 20:30:11 -0000, "Bruce Farquhar"
wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas? It does not seem practical. what are the plates, I suppose AC would limit electrochemical effects, but it does not sound practical. As far as the resistance goes, I suppose with a mineral concentration the resistance would fall with temperature, but at 100C the bubbles would provide negative feedback. Proof could be obtained by measuring the temperature. I would guess it never goes over 100C :-) AB |
Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Fri, 30 Nov 2018 08:10:43 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again: FLUSH the two abnormal trolls' latest troll**** unread ....and much better air in here again! -- Norman Wells addressing senile Rot: "Ah, the voice of scum speaks." MID: |
Troll-feeding Senile IDIOT Alert!
On Thu, 29 Nov 2018 22:13:50 +0000, Archibald Tarquin Blenkinsopp, the
notorious, troll-feeding, senile idiot, blathered again: It does not seem practical. what are the plates, I suppose AC would limit electrochemical effects, but it does not sound practical. As far as the resistance goes, I suppose with a mineral concentration the resistance would fall with temperature, but at 100C the bubbles would provide negative feedback. Proof could be obtained by measuring the temperature. I would guess it never goes over 100C :-) AB Another senile idiot who couldn't resist swallowing the unwashed Scottish ****** and attention whore's idiotic bait, hook, line and sinker again! tsk |
How can those Chinese water heaters work?
On Thu, 29 Nov 2018 21:10:43 -0000, Rod Speed wrote:
Bruce Farquhar wrote Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? The current flows thru the water and that heats it. Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. That only affect how long it takes to heat the water. I assume the resistivity changes due to impurities like lime in hard water areas? Yep. My point is, a 2.5kW heater could end up 25W and be totally useless. A factor of 100 is a LOT. |
How can those Chinese water heaters work?
On Thu, 29 Nov 2018 22:13:50 -0000, Archibald Tarquin Blenkinsopp wrote:
On Thu, 29 Nov 2018 20:30:11 -0000, "Bruce Farquhar" wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas? It does not seem practical. what are the plates, I suppose AC would limit electrochemical effects, but it does not sound practical. They do seem to work - check out bigclive's videos on youtube. As far as the resistance goes, I suppose with a mineral concentration the resistance would fall with temperature, I've not measured different waters as I only have access to Scottish tapwater and de-ionised water. It would be interesting for people around the world to measure the resistivity of their own tapwater. but at 100C the bubbles would provide negative feedback. Yes bubbling does make the current fall. Proof could be obtained by measuring the temperature. I would guess it never goes over 100C :-) |
How can those Chinese water heaters work?
"Bruce Farquhar" wrote in message ... On Thu, 29 Nov 2018 21:10:43 -0000, Rod Speed wrote: Bruce Farquhar wrote Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? The current flows thru the water and that heats it. Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. That only affect how long it takes to heat the water. I assume the resistivity changes due to impurities like lime in hard water areas? Yep. My point is, a 2.5kW heater could end up 25W and be totally useless. Sure, but that's the risk you take with that approach but it has other advantages, most obviously the price and lack of maintenance. A factor of 100 is a LOT. But isnt actually anything like that great in real life with tap water. |
How can those Chinese water heaters work?
On Fri, 30 Nov 2018 01:22:13 -0000, Rod Speed wrote:
"Bruce Farquhar" wrote in message ... On Thu, 29 Nov 2018 21:10:43 -0000, Rod Speed wrote: Bruce Farquhar wrote Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? The current flows thru the water and that heats it. Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. That only affect how long it takes to heat the water. I assume the resistivity changes due to impurities like lime in hard water areas? Yep. My point is, a 2.5kW heater could end up 25W and be totally useless. Sure, but that's the risk you take with that approach but it has other advantages, most obviously the price and lack of maintenance. I like bigclive's warning that it's undesirable to use it in the baby's bath while the baby is in it. A factor of 100 is a LOT. But isnt actually anything like that great in real life with tap water. I wonder what real life values are? The 2 to 200 ohm metres was from a google search and it related to "drinking water", without any further specifications. |
How can those Chinese water heaters work?
"Bruce Farquhar" wrote in message ... On Fri, 30 Nov 2018 01:22:13 -0000, Rod Speed wrote: "Bruce Farquhar" wrote in message ... On Thu, 29 Nov 2018 21:10:43 -0000, Rod Speed wrote: Bruce Farquhar wrote Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? The current flows thru the water and that heats it. Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. That only affect how long it takes to heat the water. I assume the resistivity changes due to impurities like lime in hard water areas? Yep. My point is, a 2.5kW heater could end up 25W and be totally useless. Sure, but that's the risk you take with that approach but it has other advantages, most obviously the price and lack of maintenance. I like bigclive's warning that it's undesirable to use it in the baby's bath while the baby is in it. Dunno, it would work fine as a retrospective abortion when the bugger is crying all the time in the middle of the night. A factor of 100 is a LOT. But isnt actually anything like that great in real life with tap water. I wonder what real life values are? Dunno. The 2 to 200 ohm metres was from a google search and it related to "drinking water", without any further specifications. Yeah, but bore water particularly is drinking water but unusual for most consumers. |
How can those Chinese water heaters work?
Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work?* Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output.* I assume the resistivity changes due to impurities like lime in hard water areas? They used to make jug elements like that |
Troll-feeding Senile Ozzietard Alert!
On Fri, 30 Nov 2018 18:35:24 +1100, FMurtz, the brain damaged, notorious,
troll-feeding, senile idiot, blathered: They used to make jug elements like that Looks like gay Scottish sow has a firm fan base of senile idiots that will keep sucking him off whenever he wants to be sucked of by you seniles! BG |
Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Fri, 30 Nov 2018 13:23:35 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again: FLUSH the two prize idiots' usual idiotic drivel -- Cursitor Doom about Rot Speed: "I'm not the least surprised. The man is a conspicuous and unashamed ignoramus." MID: |
How can those Chinese water heaters work?
On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work?* Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output.* I assume the resistivity changes due to impurities like lime in hard water areas? They work best with Chinese water which is full of crap:-) Mike |
How can those Chinese water heaters work?
On 11/30/2018 6:51 AM, Muddymike wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work?* Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output.* I assume the resistivity changes due to impurities like lime in hard water areas? They work best with Chinese water which is full of crap:-) Mike When I was a kid, we had a vaporizer that used 2 carbon rods, which were in a Bakelite tube, with the whole thing submerged in a large water bowl. It worked, but, even though we had city water (Chicago area), the carbon rods would get coated with minerals and would have to be cleaned from time to time. Otherwise, the output would be very low. |
Troll-feeding Senile IDIOT Alert!
On Fri, 30 Nov 2018 11:51:37 +0000, Muddymike, yet another mentally
challenged, troll-feeding, senile idiot, blathered: They work best with Chinese water which is full of crap:-) Mike ....and yet another senile idiot who can't resist sucking the gay Scottish ****** off! BG |
How can those Chinese water heaters work?
On 29/11/2018 20:30, Bruce Farquhar wrote:
Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work?* Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output.* I assume the resistivity changes due to impurities like lime in hard water areas? Big Clive did a review of these a couple of years ago https://www.youtube.com/watch?v=EViyccc2t9w and John Ward more recently https://www.youtube.com/watch?v=0BPCife3tWs |
Troll-feeding Senile IDIOT Alert!
On Fri, 30 Nov 2018 15:05:20 +0000, Andy Bennet, yet another mentally
deficient, troll-feeding, senile idiot, blathered: Big Clive did a review of these a couple of years ago https://www.youtube.com/watch?v=EViyccc2t9w and John Ward more recently https://www.youtube.com/watch?v=0BPCife3tWs At least you couldn't suck THEIR cocks, you senile sucker of troll cock! tsk |
How [in God's name] can those Chinese water heaters work?
On Fri, 30 Nov 2018 15:07:45 -0600, LO AND BEHOLD; Sam E
determined that the following was of great importance and subsequently decided to freely share it with us in : œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ On 11/30/18 12:27 PM, Sir Gregory Hall, Esq. wrote: œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ On Fri, 30 Nov 2018 13:24:24 -0800, 💩 œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ wrote: ... œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ No, Stupid. That's what YOU said, when you claimed cold "radiated" from œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ your window (you probably only have one). Cold is defined as the œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ absence of heat, while heat is defined simply as heat. You know œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ nothing about even basic physics, and you know nothing about electrical œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ wiring, and you think your alternating current is operating at 1 Hz. œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ Your lights must literally throb on and off at that rate. œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ It would be 2Hz, since you get light on both half cycles. leave it to 50 years of experience and slapping his own back guy for not knowing anything fundamental about the physics of electricity to get that one wrong. for a similar reason transformer line hum is usually 120Hz and not 60. whadda "brainiac". œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ For a guy who self-identifies as "smart," you sure are dumb... not to œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ mention gay. œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ LOL and shuddup! -- [THIS POAST HAS PASSED TRIMCHECK® VALIDATION] THIS SPACE FOR RENT https://www.youtube.com/watch?v=iB6B8jGSdLA "Thanks to muzzies and their apologist-enablers like puppy whistle, this seems to be the new norm in the world. It's spreading like a cancer, and it's time we admit we're at war with pure evil. We need to put an end to this muzzie plague, or life on Earth is going to become pure hell everywhere. We need to get these people out of every civilized country, and there's only one way to do it. IOW, we have to become like them, with an emphasis on expediency over cruelty." - Checkmate (of alt.checkmate) "Pussy Willow has just proven that Trump's crackdown on previously unenforced immigration policies is working. We'll deal with the domestic terrorists as needed, but we don't need to be letting the muzzie terrorists get a foothold in our country too. One need only look at what they're doing in Europe right now to know we're doing the right thing by keeping them out, which is our right and our duty. - Checkmate (#1 pussy willow fan) - "You just made puppy whistle's sig line longer." - Janithor - "If I have a complaint about the (Southern Poverty) Law Center's description (of the alt-right movement), it is the phrase "heavy use of social media," which implies the alt-right is a real-world movement which uses a lot of social media. This is backwards: it is an online movement which occasionally appears in the real world. Where it gets punched." - Jason Rhode - "I think we should destroy every last ****ing mosque in America." - "Checkmate, DoW #1" proves for us that white males are violent in Message-ID: - Golden Killfile, June 2005 KOTM, November 2006 Bob Allisat Memorial Hook, Line & Sinker, November 2006 Special Ops Cody Memorial Purple Heart, November 2006 Special Ops Cody Memorial Purple Heart, September 2007 Tony Sidaway Memorial "Drama Queen" Award, November 2006 Busted Urinal Award, April 2007 Order of the Holey Sockpuppet, September 2007 Barbara Woodhouse Memorial Dog Whistle, September 2006 Barbara Woodhouse Memorial Dog Whistle, April 2008 Tinfoil Sombrero, February 2007 AUK Mascot, September 2007 Putting the Awards Out of Order to Screw With the OCD ****heads, March 2016 |
How [in God's name] can those Chinese water heaters work?
On Friday, 30 November 2018 21:15:56 UTC, Mark Lloyd wrote:
I have wished that sound was the absence of silence. That is, you could place a silence-emitting device next to someone, and then couldn't hear the snoring. That technology has been around for a long time. John |
How can those Chinese water heaters work?
Andy Bennet wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work?* Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output.* I assume the resistivity changes due to impurities like lime in hard water areas? Big Clive did a review of these a couple of years ago https://www.youtube.com/watch?v=EViyccc2t9w and John Ward more recently https://www.youtube.com/watch?v=0BPCife3tWs Big clive is more accurate, the other nong was making factually incorrect statements. |
How can those Chinese water heaters work?
"FMurtz" wrote in message ... Andy Bennet wrote: On 29/11/2018 20:30, Bruce Farquhar wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas? Big Clive did a review of these a couple of years ago https://www.youtube.com/watch?v=EViyccc2t9w and John Ward more recently https://www.youtube.com/watch?v=0BPCife3tWs Big clive is more accurate, the other nong was making factually incorrect statements. And has a much more irritating style. |
How [in God's name] can those Chinese water heaters work?
On Friday, 30 November 2018 18:24:36 UTC, Checkmate wrote:
You know nothing about even basic physics, and you know nothing about electrical wiring, and you think your alternating current is operating at 1 Hz. Your lights must literally throb on and off at that rate. For a guy who self-identifies as "smart," you sure are dumb... not to mention gay. 1 certainly hertz if 1 touches it. |
How can those Chinese water heaters work?
On 30/11/2018 01:41, Bruce Farquhar wrote:
I like bigclive's warning that it's undesirable to use it in the baby's bath while the baby is in it. Here's his follow-up, starting with distilled water then adding a dash of salt. https://www.youtube.com/watch?v=qQssSAf6DPA -- Reentrant |
Troll-feeding Senile IDIOT Alert!
On Sat, 1 Dec 2018 11:23:17 +0000, Reentrant, yet another brain damaged,
troll-feeding, senile idiot, blathered: Here's his follow-up, starting with distilled water then adding a dash of salt. Looks like the abnormal Scottish ******, troll and attention whore got a "new" follower! BG |
How can those Chinese water heaters work?
On 30/11/2018 15:05, Andy Bennet wrote:
On 29/11/2018 20:30, Bruce Farquhar wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work?* Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output.* I assume the resistivity changes due to impurities like lime in hard water areas? Big Clive did a review of these a couple of years ago https://www.youtube.com/watch?v=EViyccc2t9w I can't believe I sat through that and nothing went bang. |
How [in God's name] can those Chinese water heaters work?
On Sunday, 2 December 2018 11:38:52 UTC, MIT Bob wrote:
On 12/1/18 4:59 PM, The Natural Philosopher wrote: On 01/12/2018 17:18, Sam E wrote: On 11/30/18 10:25 PM, Checkmate wrote: It would be 2Hz, since you get light on both half cycles. It would be 1 Hz, two throbs. Each throb is a cycle, since the light is the same regardless of the current direction. A diode in the circuit makes it 1Hz. but 4 diodes make it 2Hz Only if it's 2-phase. 1 & 2 phase both produce the same number of shocks per second for a given frequency NT |
How [in God's name] can those Chinese water heaters work?
On 02/12/2018 11:38, MIT Bob wrote:
On 12/1/18 4:59 PM, The Natural Philosopher wrote: On 01/12/2018 17:18, Sam E wrote: On 11/30/18 10:25 PM, Checkmate wrote: It would be 2Hz, since you get light on both half cycles. It would be 1 Hz, two throbs. Each throb is a cycle, since the light is the same regardless of the current direction. A diode in the circuit makes it 1Hz. but 4 diodes make it 2Hz Only if it's 2-phase. no, single phase. -- "If you dont read the news paper, you are un-informed. If you read the news paper, you are mis-informed." Mark Twain |
How [in God's name] can those Chinese water heaters work?
On 02/12/2018 14:59, % wrote:
On 2018-12-02 7:44 a.m., Sir Gregory Hall,Â* Esq. wrote: On Sun, 2 Dec 2018 03:11:33 -0800, Checkmate wrote: ... We've already defined the frequency as 1 Hz.Â* That means the time between a positive peek and a negative valley is half a second.Â* Two throbs. Throb THIS (the sound of jeans' unzipping). guys in their 80 in jeans look so stupid , it's obvious what they're trying to do Cover up their legs? -- "If you dont read the news paper, you are un-informed. If you read the news paper, you are mis-informed." Mark Twain |
How [in God's name] can those Chinese water heaters work?
On Sun, 02 Dec 2018 15:31:53 -0500, Sir Gregory Hall, Esq. wrote:
On Sun, 2 Dec 2018 15:02:25 -0800, Checkmate wrote: ... In the Sixties, we called it "cycles" but they needed to honor someone, so they changed it to Hertz, witch the average novice doesn't understand. I thought Hertz was what happens to your brain when you try to compete with me in the arena of ideas! Do they call that the Hall Effect? -- My posts are my copyright and if @diy_forums or Home Owners' Hub wish to copy them they can pay me £1 a message. Use the BIG mirror service in the UK: http://www.mirrorservice.org *lightning surge protection* - a w_tom conductor |
How [in God's name] can those Chinese water heaters work?
On Fri, 30 Nov 2018 22:01:58 -0000, wrote:
On Friday, 30 November 2018 21:15:56 UTC, Mark Lloyd wrote: I have wished that sound was the absence of silence. That is, you could place a silence-emitting device next to someone, and then couldn't hear the snoring. That technology has been around for a long time. Noise cancelling technology. It doesn't actually emit silence or absorb sound, but emits a sound which cancels the existing sound. Like making waves in water to cancel the others. |
How [in God's name] can those Chinese water heaters work?
On Fri, 30 Nov 2018 21:16:10 -0000, Sir Gaygory's Owner's Owner ðŸ¶ç¬› wrote:
On Fri, 30 Nov 2018 15:07:45 -0600, LO AND BEHOLD; Sam E determined that the following was of great importance and subsequently decided to freely share it with us in : œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ On 11/30/18 12:27 PM, Sir Gregory Hall, Esq. wrote: œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ On Fri, 30 Nov 2018 13:24:24 -0800, 💩 œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ wrote: ... œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ No, Stupid. That's what YOU said, when you claimed cold "radiated" from œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ your window (you probably only have one). Cold is defined as the œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ absence of heat, while heat is defined simply as heat. You know œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ nothing about even basic physics, and you know nothing about electrical œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ wiring, and you think your alternating current is operating at 1 Hz. œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ Your lights must literally throb on and off at that rate. œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡œ¡ It would be 2Hz, since you get light on both half cycles. leave it to 50 years of experience and slapping his own back guy for not knowing anything fundamental about the physics of electricity to get that one wrong. for a similar reason transformer line hum is usually 120Hz and not 60. whadda "brainiac". Actually you just explained why he was right. |
How can those Chinese water heaters work?
On Sat, 01 Dec 2018 12:32:26 -0000, R D S wrote:
On 30/11/2018 15:05, Andy Bennet wrote: On 29/11/2018 20:30, Bruce Farquhar wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas? Big Clive did a review of these a couple of years ago https://www.youtube.com/watch?v=EViyccc2t9w I can't believe I sat through that and nothing went bang. Yes, explosions are much more fun. |
How can those Chinese water heaters work?
On Fri, 30 Nov 2018 15:11:03 -0000, trader_4 wrote:
On Friday, November 30, 2018 at 7:35:51 AM UTC-5, Art Todesco wrote: On 11/30/2018 6:51 AM, Muddymike wrote: On 29/11/2018 20:30, Bruce Farquhar wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas? They work best with Chinese water which is full of crap:-) Mike When I was a kid, we had a vaporizer that used 2 carbon rods, which were in a Bakelite tube, with the whole thing submerged in a large water bowl. It worked, but, even though we had city water (Chicago area), the carbon rods would get coated with minerals and would have to be cleaned from time to time. Otherwise, the output would be very low. They still make those AFAIK. I never saw ones with carbon rod, only steel. I have one, it is a couple decades old. I've never seen one of these Chinese water heaters they are talking about, but obviously they work on the same principle. Typical water has enough minerals that it will conduct. It also simplifies the design, you don't need over temp limit cutoffs if it runs with no water and the like. have one But since the designer has no idea of the mineral composition of the water you're going to use, the output power could vary by a factor of 100. So you might buy one that's capable of 2kW and find you get a measly and utterly useless 20W. |
How can those Chinese water heaters work?
On Fri, 30 Nov 2018 07:35:24 -0000, FMurtz wrote:
Bruce Farquhar wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas? They used to make jug elements like that And then the health and softy folk ruined it all. |
How can those Chinese water heaters work?
"William Gothberg" wrote in message ... On Fri, 30 Nov 2018 07:35:24 -0000, FMurtz wrote: Bruce Farquhar wrote: Those cheap Chinese water heaters which are simply two plates of metal, one on live and one on neutral, how can they work? Because the resistivity of tap water apparently varies from 2 to 200 ohm metres. That's a range of 100 fold in possible power output. I assume the resistivity changes due to impurities like lime in hard water areas? They used to make jug elements like that And then the health and softy folk ruined it all. No they didn't. They arent very viable because the result you get depends on the conductivity of the water. The heater type work much better. |
Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Sat, 29 Dec 2018 08:06:38 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again: No -- Kerr-Mudd,John addressing senile Rot: "Auto-contradictor Rod is back! (in the KF)" MID: |
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