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| Thread ID: 88983 | 2008-04-16 10:14:00 | How efficient is an electric heater? | george12 (7) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 659572 | 2008-04-17 02:42:00 | "In the summer, it would be heaps more, because it is made from thermally generated power which leaves the power station quite hot, whereas in the winter the power would likely come mostly come from hydro electric power, and some of that hydro power from the South Island will be pretty chilly." Ha ha!! As an operator working in NZ's largest thermal power station, that has to be the most outside the square explanation of our generation. You were joking, right? |
Fishb8 (484) | ||
| 659573 | 2008-04-17 03:03:00 | R2x1 is never serious.....except when he is... :D | johcar (6283) | ||
| 659574 | 2008-04-17 03:27:00 | The free standing gas heaters can pump out a litre of water an hour on full blast so can counteract the heat benefit when turned off. Dehumidifiers FTW! |
beeswax34 (63) | ||
| 659575 | 2008-04-17 09:13:00 | You forgot the 33% or so from transmission. ?? I think that figure of 33% is for a typical coal-fired station. According to Wikipedia:- "Transmission and distribution losses in the USA were estimated at 7.2% in 1995, and in the UK at 7.4% in 1998." |
decibel (11645) | ||
| 659576 | 2008-04-17 09:56:00 | Ha ha!! As an operator working in NZ's largest thermal power station, that has to be the most outside the square explanation of our generation. You were joking, right? Well, if you work in a power station, you can be quite nonchalant about it, you make the stuff and stick it in those big coils of wire that are lying around the place. It may be all very well for your generation, but us old dudes are a bit worried about it all. If you impatient manufacturers could make slower electricity instead of this stuff that arrives in a flash, we wouldn't get hurt so much when some of it runs into us. Also, the wear on the wires when the electricity goes around sharp corners must be fearsome. If you sent it slower, it could probably be cheaper too. It is not necessary to send it all out at the speed of light when most of it will be used for heating |
R2x1 (4628) | ||
| 659577 | 2008-04-17 10:04:00 | ?? I think that figure of 33% is for a typical coal-fired station . According to Wikipedia:- "Transmission and distribution losses in the USA were estimated at 7 . 2% in 1995, and in the UK at 7 . 4% in 1998 . " Just think how much inflation we have had since 1995 and 1998 . Then there's the exchange rate and . . . Coal fired stations would probably have manual transmissions, they have a fair few atomic power stations over there that are quite likely have to automatic transmissions . |
R2x1 (4628) | ||
| 659578 | 2008-04-17 10:13:00 | I think if you had 2kw of power across a copper brick it would produce 2kw of heat, just like a 2kw heater. If you did that, you would blow the fuse. No resistance in a copper brick. Think about it. PJ ;) |
Poppa John (284) | ||
| 659579 | 2008-04-17 10:25:00 | If you did that, you would blow the fuse. No resistance in a copper brick. Think about it. PJ ;) Well, as long as you match the impedance, the fuse should be all right. A copper brick is probably around .000000102300100379 ohms with a reactive component that is quite small at 50hz, so as long as you use a good matching transformer all should be sweet. With 1200 turns on the primary, a milli-turn on the secondary should be about right. Unfortunately the leads to your heating brick should really have quite low resistance. Something with a cross section of about a meter^2 should be alright as long as you keep the leads short enough. Unfortunately the losses in the transformer will probably cause enough heat to make the brick redundant, and the price of all that copper will mean the house had to be sold, so perhaps you need to consider moving to a warmer climate. (Not necessarily quite as warm as the destination you are suggesting for me.) |
R2x1 (4628) | ||
| 659580 | 2008-04-17 10:36:00 | It may be time I invented a gas fired computer. It may be more efficient. | Sweep (90) | ||
| 659581 | 2008-04-17 11:02:00 | It may be time I invented a gas fired computer. It may be more efficient. :lol: |
Erayd (23) | ||
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