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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#841
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More on electric cars.
In article
, harry wrote: Have you managed to design a car which runs without electricity? If not suggest an alternative way of generating it. Solar panels, maybe? I have already mentioned the thermopile in the exhaust VW are working on. This uses energy that otherwise would be lost. Yes, you have mentioned it. It is likely just another pie in the sky idea. Car makers do research on things they know from the start will never end up being used. That research may well throw up some useful things to be used elsewhere, though. -- *Puritanism: The haunting fear that someone, somewhere may be happy. Dave Plowman London SW To e-mail, change noise into sound. |
#842
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More on electric cars.
In article
, harry wrote: Its very efficient. Probably 80% or better. Wrong as usual TurNiP. http://en.wikipedia.org/wiki/Alterna...ve_alternators Efficiency of automotive alternators is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. At partial load efficiency is between 50-62% depending on the size of alternator and varies with alternator speed.[8] This is similar to very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. What's the efficiency of your solar panels, Harry? -- *Rehab is for quitters. Dave Plowman London SW To e-mail, change noise into sound. |
#843
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More on electric cars.
In article
, harry wrote: And engine wear is a problem these days? Most cars go to the scrapyard on their original engine. No need to rest on laurels. Engines could normally last a million miles. Most wear occurs on startup. Wear reduces efficiency. Can you give some figures about this? Most engines are more efficient after thousands of miles use than when new. But electric motors could last longer than that. But the rest of the vehicle won't. And electric motors still have bearings which can and will fail. The batteries are the problem. And likely always will be. Despite the hype. And the idiots who think they already exist. -- *Heart attacks... God's revenge for eating his animal friends Dave Plowman London SW To e-mail, change noise into sound. |
#844
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More on electric cars.
In article
, harry wrote: All electricity producing devices need energy to manufacture. But with renewables it's a one off. They last forever? I must have imagined all those broken windmills, then. -- *You're just jealous because the voices only talk to me * Dave Plowman London SW To e-mail, change noise into sound. |
#845
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More on electric cars.
On Mon, 24 Sep 2012 20:27:52 +0100, tony sayer wrote:
I remember driving a rather olde Lotus many years ago that had vacuum headlamps .. foot to the floor lamps down.. Back off the power lamps up;!... Sort of inbuilt speed limiter I suppose;!... You had a faulty non return valve in the vacuum line. The biggest problem is raising the lamps at high speed as it is very easy for them to overtravel and crack the fibreglass on the body. Early cars used vacuum to raise the lamps, later ones moved to failsafe lamps that were raised by a spring and needed the vacuum to stay down. -- |
#846
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More on electric cars.
On Mon, 24 Sep 2012 09:03:53 -0700 (PDT), harry
wrote: When the oil runs outbecomes rare/expensive and all energy costs more, solar panels will be even more viable because they need no oil to run. At that point you will find solar panels get stoned to death alongside those previously receiving the FIT payment. Welcome to the new stone age, caused by thousands of money grabbing greedy *******s like you. -- |
#847
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More on electric cars.
In article
, harry wrote: On Sep 24, 5:24 pm, John Williamson wrote: harry wrote: On Sep 24, 10:49 am, "Dave Plowman (News)" wrote: Of course there are alternatives. But in the event of oil running out those alternatives will massively shoot up in price. Making solar panels even more uneconomic. . When the oil runs outbecomes rare/expensive and all energy costs more, solar panels will be even more viable because they need no oil to run. At the same time as they become more expensive to make and buy due to the increased cost of the energy used to make them. If you build an oil fired power station you need oil to build it and oil to run it. With a renewable energy source you might need oil to build it and then nothing. That is what TurNiP can't/won't get his fat head round. My PV panels will last 25 years without further expense. Keep that statement in mind when they fail before that. Even if the panels don't the control gear will. The drop in efficiency is less than 1%/year. assuming you get up to clean them on a regular basis. -- From KT24 Using a RISC OS computer running v5.18 |
#848
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More on electric cars.
On 25/09/12 11:40, Tim Streater wrote:
In article , harry wrote: With a renewable energy source you might need oil to build it and then nothing. Not nothing, harry. You need backup for when it's dark or there is no wind. Possibly the Aussies might make solar work with their molten salt heat storage, which powers the gennies overnight. But then they have billyuns of sq miles of desert and *reliable* sunshine. And it still remains to be seen how it compares to nuclear, neither am I sure how well it'd work in winter. Is that anything like http://www.archimedesolarenergy.com/ The new factory was in the same half finished state this summer as it was a year ago. -- djc |
#849
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More on electric cars.
On Sep 25, 11:32*am, "Dave Plowman (News)"
wrote: In article , * *harry wrote: Its very efficient. Probably 80% or better. Wrong as usual TurNiP. http://en.wikipedia.org/wiki/Alterna...ve_alternators Efficiency of automotive alternators is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. At partial load efficiency is between 50-62% depending on the size of alternator and varies with alternator speed.[8] This is similar to very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. What's the efficiency of your solar panels, Harry? Around 11%. But neither here nor there as sunshine is free. You have to pay for petrol etc. You can buy ones of around 14% (Cost more). There are ones in the laboratory of around 40%. Early days yet. |
#850
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More on electric cars.
On Sep 25, 11:40*am, Tim Streater wrote:
In article , *harry wrote: With a renewable energy source you might need oil to build it and then nothing. Not nothing, harry. You need backup for when it's dark or there is no wind. Possibly the Aussies might make solar work with their molten salt heat storage, which powers the gennies overnight. But then they have billyuns of sq miles of desert and *reliable* sunshine. And it still remains to be seen how it compares to nuclear, neither am I sure how well it'd work in winter. -- Tim "That excessive bail ought not to be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted" *-- *Bill of Rights 1689 Early days yet. We need as many different technologies as possible. We need the smart grid. There will be a backup, gas turbine eg http://en.wikipedia.org/wiki/Pembroke_Power_Station http://en.wikipedia.org/wiki/Connah%..._Power_Station Can be quickly started and high turndown ratio. Renewable energy is about saving fuel. Capital costs will be higher but so will the cost of energy in general. And we're all going to have to use less. |
#851
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More on electric cars.
On Sep 25, 12:07*pm, "Dave Plowman (News)"
wrote: In article , * *harry wrote: All electricity producing devices need energy to manufacture. But with renewables it's a one off. They last forever? I must have imagined all those broken windmills, then. Early days. |
#852
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More on electric cars.
On Sep 25, 12:11*pm, The Other Mike
wrote: On Mon, 24 Sep 2012 09:03:53 -0700 (PDT), harry wrote: When the oil runs outbecomes rare/expensive and all energy costs more, solar panels will be even more viable because they need no oil to run. At that point you will find solar panels get stoned to death alongside those previously receiving the FIT payment. Welcome to the new stone age, caused by thousands of money grabbing greedy *******s like you. -- Well you are a sad, dullwitted, head in the sand *******. You just can't get your head round the fact that there is no alternative. |
#853
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More on electric cars.
"Dave Plowman (News)" wrote in message ... In article , Doctor Drivel wrote: "Dave Plowman (News)" wrote in message ... In article , harry wrote: Volkswagen have been experimenting with thermpiles in the exhaust to make electricity and thus eliminating the alternator. Crikey. An alternator is actually a very efficient device. Sounds like they're clutching at straws. NO, using waste heat to produce electricity . Run a 100A alternator off an electric motor. Most take around a 8 to 9 Hp motor to turn it when charging. That is they take about 9 hp off the crank. I think you've finally flipped. Use an electric motor to generate electricity... Effing senile fool. Remove that, the mechanical oil pump, water pump, a/c and replace all with electric and the fuel consumption rises, as the parasite hp suckers are not sucking off the engine. An oil pump alone can consume 10hp off the crank. Just do without one then. Who needs oil circulating in an engine? Effing senile fool. Then a smaller engine is needed reducing fuel consumption yet again. All simple stuff that can be done tomorrow. Parasite engine ancillaries can take one third of the HP from an engine. Removing them and having a mechanism that charges the battery by waste heat and kinetic energy is the answer to make these useless inefficient crocks last a few more years before EVs take over fully. And all you need to do Effing senile fool. |
#854
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More on electric cars.
On Sep 25, 2:23*pm, charles wrote:
In article , * *harry wrote: On Sep 24, 5:24 pm, John Williamson wrote: harry wrote: On Sep 24, 10:49 am, "Dave Plowman (News)" wrote: Of course there are alternatives. But in the event of oil running out those alternatives will massively shoot up in price. Making solar panels even more uneconomic. . When the oil runs outbecomes rare/expensive and all energy costs more, solar panels will be even more viable because they need no oil to run. At the same time as they become more expensive to make and buy due to the increased cost of the energy used to make them. If you build an oil fired power station you need oil to build it and oil to run it. With a renewable energy source you might need oil to build it and then nothing. That is what TurNiP can't/won't get his fat head round. My PV panels will last 25 years without further expense. Keep that statement in mind when they fail before that. *Even if the panels don't the control gear will. The drop in efficiency is less than 1%/year. assuming you get up to clean them on a regular basis. Unnecessary unless they are (near) horizontal. The rain washes them clean. They will still be producing free energy when fossil fuels cost ten times what they are now. |
#855
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More on electric cars.
"tony sayer" wrote in message ... In article , Doctor Drivel invalid@not- for-mail.invalid scribeth thus "Dave Plowman (News)" wrote in message ... In article , harry wrote: Volkswagen have been experimenting with thermpiles in the exhaust to make electricity and thus eliminating the alternator. Crikey. An alternator is actually a very efficient device. Sounds like they're clutching at straws. NO, using waste heat to produce electricity . Run a 100A alternator off an electric motor. Eh?, Where or what is powering is err umm rotary converter system?.. Read again. |
#856
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More on electric cars.
harry wrote:
On Sep 24, 10:49 am, "Dave Plowman (News)" wrote: In article , harry wrote: Volkswagen have been experimenting with thermpiles in the exhaust to make electricity and thus eliminating the alternator. Crikey. An alternator is actually a very efficient device. Sounds like they're clutching at straws. An automotive alternator is very inefficient. And not having it removes a parasitic load from the IC engine. Harry fantastic, you got it! Unlike some other seniles. An alternator can take 9-15hp off an engine. Remove it, the mechanical parasitical loads like oil pump, water pump, a/c, and the HP of an engine will rise substantially. Then the engines can be downsized reducing fuel consumption again. Just having an alternator with a clutch that cuts out when accelerating mean the engine can be downsized and acceleration improved. Also the starter motors can be downsized as well (cheaper & less weight and power drawn from the battery). All this is easy to do, like the next model update could have it all - Instead of a 1600cc the engine could be 1300cc. |
#857
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More on electric cars.
charles wrote:
In article , harry wrote: On Sep 24, 10:49 am, "Dave Plowman (News)" wrote: In article , harry wrote: Volkswagen have been experimenting with thermpiles in the exhaust to make electricity and thus eliminating the alternator. Crikey. An alternator is actually a very efficient device. Sounds like they're clutching at straws. An automotive alternator is very inefficient. And not having it removes a parasitic load from the IC engine. but how else would you run lights, etc? Read back on Harry's posts. ....and then mine. |
#858
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More on electric cars.
The Natural Philosopher wrote:
harry wrote: On Sep 24, 10:49 am, "Dave Plowman (News)" wrote: In article , harry wrote: Volkswagen have been experimenting with thermpiles in the exhaust to make electricity and thus eliminating the alternator. Crikey. An alternator is actually a very efficient device. Sounds like they're clutching at straws. An automotive alternator is very inefficient. And not having it removes a parasitic load from the IC engine. Its very efficient. Probably 80% or better. You never got it. |
#859
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More on electric cars.
harry wrote:
On Sep 24, 5:19 pm, The Natural Philosopher wrote: harry wrote: On Sep 24, 10:49 am, "Dave Plowman (News)" wrote: In article , harry wrote: Volkswagen have been experimenting with thermpiles in the exhaust to make electricity and thus eliminating the alternator. Crikey. An alternator is actually a very efficient device. Sounds like they're clutching at straws. An automotive alternator is very inefficient. And not having it removes a parasitic load from the IC engine. Its very efficient. Probably 80% or better. Wrong as usual TurNiP. http://en.wikipedia.org/wiki/Alterna...ve_alternators Efficiency of automotive alternators is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. At partial load efficiency is between 50-62% depending on the size of alternator and varies with alternator speed.[8] This is similar to very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. Spot on Harry. You are doing well. |
#860
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More on electric cars.
Dave Plowman (News) wrote:
In article , harry wrote: Its very efficient. Probably 80% or better. Wrong as usual TurNiP. http://en.wikipedia.org/wiki/Alterna...ve_alternators Efficiency of automotive alternators is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. At partial load efficiency is between 50-62% depending on the size of alternator and varies with alternator speed.[8] This is similar to very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. What's the efficiency of your solar panels, Harry? This senile one thinks solar panels are alternators on cars. |
#861
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More on electric cars.
harry wrote:
On Sep 25, 11:32 am, "Dave Plowman (News)" wrote: In article , harry wrote: Its very efficient. Probably 80% or better. Wrong as usual TurNiP. http://en.wikipedia.org/wiki/Alterna...ve_alternators Efficiency of automotive alternators is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. At partial load efficiency is between 50-62% depending on the size of alternator and varies with alternator speed.[8] This is similar to very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. What's the efficiency of your solar panels, Harry? Around 11%. But neither here nor there as sunshine is free. You have to pay for petrol etc. You can buy ones of around 14% (Cost more). There are ones in the laboratory of around 40%. Early days yet. All solar panels are 100% efficient as the energy you get is free. |
#862
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More on electric cars.
Dave Plowman (News) wrote:
In article , Doctor Drivel wrote: Having all ancillaries electric also gives great control. The oil pressure can be carefully controlled. Variations in pressure can detect bearing wear and give a readout to the driver. We now know what car you drive. This man is senile. |
#863
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More on electric cars.
harry wrote:
The main benefit of an electric oil pump is that you can start it before starting the IC engine so reducing wear to almost nil. Harry, many others. It can reduce the HP draw from the engine improving fuel economy greatly. It gives the right pressure at all times being variable speed. It can detect bearing wear. I think they are essential. BMW use them on some engines. |
#864
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More on electric cars.
harry wrote:
No need to rest on laurels. Engines could normally last a million miles. Most wear occurs on startup. Wear reduces efficiency. But electric motors could last longer than that. The batteries are the problem. Spot on Harry! |
#865
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More on electric cars.
Dave Plowman (News) wrote:
In article , harry wrote: And engine wear is a problem these days? Most cars go to the scrapyard on their original engine. No need to rest on laurels. Engines could normally last a million miles. Most wear occurs on startup. Wear reduces efficiency. Can you give some figures snip babble by a senile person |
#866
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More on electric cars.
harry wrote:
On Sep 24, 5:24 pm, John Williamson wrote: harry wrote: On Sep 24, 10:49 am, "Dave Plowman (News)" wrote: Of course there are alternatives. But in the event of oil running out those alternatives will massively shoot up in price. Making solar panels even more uneconomic. . When the oil runs outbecomes rare/expensive and all energy costs more, solar panels will be even more viable because they need no oil to run. At the same time as they become more expensive to make and buy due to the increased cost of the energy used to make them. If you build an oil fired power station you need oil to build it and oil to run it. With a renewable energy source you might need oil to build it and then nothing. That is what TurNiP can't/won't get his fat head round. You are right Harry. The senile Jocko will never get it as he has gone too far. A hospice is the only thing for him. My PV panels will last 25 years without further expense. The drop in efficiency is less than 1%/year. Spot on Harry. |
#867
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More on electric cars.
harry wrote:
On Sep 25, 11:40 am, Tim Streater wrote: In article , harry wrote: With a renewable energy source you might need oil to build it and then nothing. Not nothing, harry. You need backup for when it's dark or there is no wind. Possibly the Aussies might make solar work with their molten salt heat storage, which powers the gennies overnight. But then they have billyuns of sq miles of desert and *reliable* sunshine. And it still remains to be seen how it compares to nuclear, neither am I sure how well it'd work in winter. -- Tim "That excessive bail ought not to be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted" -- Bill of Rights 1689 Early days yet. We need as many different technologies as possible. We need the smart grid. Like we need a hole in our heads. There will be a backup, gas turbine eg http://en.wikipedia.org/wiki/Pembroke_Power_Station http://en.wikipedia.org/wiki/Connah%..._Power_Station Can be quickly started and high turndown ratio. Renewable energy is about saving fuel. Capital costs will be higher but so will the cost of energy in general. And we're all going to have to use less. -- Ineptocracy (in-ep-toc-ra-cy) a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers. |
#868
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More on electric cars.
harry wrote:
On Sep 25, 12:11 pm, The Other Mike wrote: On Mon, 24 Sep 2012 09:03:53 -0700 (PDT), harry wrote: When the oil runs outbecomes rare/expensive and all energy costs more, solar panels will be even more viable because they need no oil to run. At that point you will find solar panels get stoned to death alongside those previously receiving the FIT payment. Welcome to the new stone age, caused by thousands of money grabbing greedy *******s like you. -- Well you are a sad, dullwitted, head in the sand *******. No harry, that's you. You just can't get your head round the fact that there is no alternative. To nuclear power? No there isn't. In the medium term. renewables will be dead in 5 years. -- Ineptocracy (in-ep-toc-ra-cy) a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers. |
#869
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More on electric cars.
Doctor Drivel wrote:
I am a know witless poohead. I agree. |
#870
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More on electric cars.
In article ,
Doctor Drivel wrote: harry wrote: No need to rest on laurels. Engines could normally last a million miles. Most wear occurs on startup. Wear reduces efficiency. But electric motors could last longer than that. The batteries are the problem. Spot on Harry! The grand alliance. Dribble and Harry. -- *I see you've set aside this special time to humiliate yourself in public Dave Plowman London SW To e-mail, change noise into sound. |
#871
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More on electric cars.
On Sep 25, 6:44*pm, The Natural Philosopher
wrote: harry wrote: On Sep 25, 12:11 pm, The Other Mike wrote: On Mon, 24 Sep 2012 09:03:53 -0700 (PDT), harry wrote: When the oil runs outbecomes rare/expensive and all energy costs more, solar panels will be even more viable because they need no oil to run.. At that point you will find solar panels get stoned to death alongside those previously receiving the FIT payment. Welcome to the new stone age, caused by thousands of money grabbing greedy *******s like you. -- Well you are a sad, dullwitted, *head in the sand *******. No harry, that's you. You just can't get your head round the fact that there is no alternative. To nuclear power? No there isn't. In the medium term. renewables will be dead in 5 years. -- Ineptocracy (in-ep-toc-ra-cy) a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers. Tch you are a halfwit. It would take ten years to build a nuclear power station, but it's not going to happen. |
#872
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More on electric cars.
On Sep 25, 6:59*pm, Tim Streater wrote:
In article , *"Doctor *Drivel" wrote: harry wrote: On Sep 25, 11:32 am, "Dave Plowman (News)" wrote: In article , harry wrote: Its very efficient. Probably 80% or better. Wrong as usual TurNiP. http://en.wikipedia.org/wiki/Alterna...ve_alternators Efficiency of automotive alternators is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. At partial load efficiency is between 50-62% depending on the size of alternator and varies with alternator speed.[8] This is similar to very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. What's the efficiency of your solar panels, Harry? Around 11%. But neither here nor there as sunshine is free. You have to pay for petrol etc. You can buy ones of around 14% (Cost more). There are ones in the laboratory of around 40%. Early days yet. All solar panels are 100% efficient as the energy you get is free. No, on your calculation it would make the efficiency = infinity. -- Tim "That excessive bail ought not to be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted" *-- *Bill of Rights 1689 There is no such thing as infinity efficiency. It ranges from 0%-100% Sometimes it goes a little over 100% due to certain incompatible measurement systems. |
#873
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More on electric cars.
On Sep 25, 11:32*am, "Dave Plowman (News)"
wrote: In article , * *harry wrote: And engine wear is a problem these days? Most cars go to the scrapyard on their original engine. No need to rest on laurels. Engines could normally last a million miles. Most wear occurs on startup. *Wear reduces efficiency. Can you give some figures about this? Most engines are more efficient after thousands of miles use than when new. But electric motors could last longer than that. But the rest of the vehicle won't. And electric motors still have bearings which can and will fail. The batteries are the problem. And likely always will be. Despite the hype. And the idiots who think they already exist. -- *Heart attacks... God's revenge for eating his animal friends * * Dave Plowman * * * * * * * * London SW * * * * * * * * * To e-mail, change noise into sound. Electric motors have two bearings and easily changed at that. How many are in an IC engine? Fifty? Sixty? More increases the chance of failure. |
#874
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More on electric cars.
On Sep 25, 12:11*pm, The Other Mike
wrote: On Mon, 24 Sep 2012 09:03:53 -0700 (PDT), harry wrote: When the oil runs outbecomes rare/expensive and all energy costs more, solar panels will be even more viable because they need no oil to run. At that point you will find solar panels get stoned to death alongside those previously receiving the FIT payment. Welcome to the new stone age, caused by thousands of money grabbing greedy *******s like you. -- Caused by stupid waste of our resources. You only need look no further than North Sea oil. |
#875
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More on electric cars.
On Sep 25, 4:57*pm, Tim Streater wrote:
In article , *harry wrote: On Sep 25, 11:32*am, "Dave Plowman (News)" wrote: In article , * *harry wrote: Its very efficient. Probably 80% or better. Wrong as usual TurNiP. http://en.wikipedia.org/wiki/Alterna...ve_alternators Efficiency of automotive alternators is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. At partial load efficiency is between 50-62% depending on the size of alternator and varies with alternator speed.[8] This is similar to very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. What's the efficiency of your solar panels, Harry? Around 11%. But neither here nor there as sunshine is free. The oil in the ground is free, too, but that doesn't mean we should be satisfied with a low extraction rate. -- Tim "That excessive bail ought not to be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted" *-- *Bill of Rights 1689 Sunshine is inexhaustable and in my garden. And no-one can cut my supply off. |
#876
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More on electric cars.
In article
, harry wrote: [Snip] Sunshine is inexhaustable and in my garden. And no-one can cut my supply off. ever heard of clouds? -- From KT24 Using a RISC OS computer running v5.18 |
#877
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More on electric cars.
"Tim Streater" wrote in message ... In article , "Doctor Drivel" wrote: Dave Plowman (News) wrote: In article , Doctor Drivel wrote: Having all ancillaries electric also gives great control. The oil pressure can be carefully controlled. Variations in pressure can detect bearing wear and give a readout to the driver. We now know what car you drive. This man is senile. Yes, drivel drive a Trabby. What a silly comment. |
#878
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More on electric cars.
"Tim Streater" wrote in message ... In article , "Doctor Drivel" wrote: harry wrote: On Sep 25, 11:32 am, "Dave Plowman (News)" wrote: In article , harry wrote: Its very efficient. Probably 80% or better. Wrong as usual TurNiP. http://en.wikipedia.org/wiki/Alterna...ve_alternators Efficiency of automotive alternators is limited by fan cooling loss, bearing loss, iron loss, copper loss, and the voltage drop in the diode bridges. At partial load efficiency is between 50-62% depending on the size of alternator and varies with alternator speed.[8] This is similar to very small high-performance permanent magnet alternators, such as those used for bicycle lighting systems, which achieve an efficiency around 60%. What's the efficiency of your solar panels, Harry? Around 11%. But neither here nor there as sunshine is free. You have to pay for petrol etc. You can buy ones of around 14% (Cost more). There are ones in the laboratory of around 40%. Early days yet. All solar panels are 100% efficient as the energy you get is free. No, on your calculation it would make the efficiency = infinity. Once again the energy you get is FREE. |
#879
Posted to uk.d-i-y
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More on electric cars.
harry wrote:
Tch you are a halfwit. It would take ten years to build a nuclear power station, but it's not going to happen. harry. It has happened before and it is happening now. Finland commissioned a new reactor because it was the cheapest way to generate electricity. whereas Vestas is laying off staff.. google "bankruptcy solar company" or "solar power chapter 11" and you get PAGES of companies that have taken government money, spent it, failed to make a profit and gone bust... I know you dont like to be on the losing side of history harry, but that's what happens when ypu try and pick a winner when you don't know anything. -- Ineptocracy (in-ep-toc-ra-cy) a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers. |
#880
Posted to uk.d-i-y
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More on electric cars.
harry wrote:
On Sep 25, 4:57 pm, Tim Streater wrote: Sunshine is inexhaustable It isnt. and in my garden. It isn't. And no-one can cut my supply off. Yes they can, very easily. Simply by building a solar farm somewhat to the south of you, high eneough..haha -- Ineptocracy (in-ep-toc-ra-cy) a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers. |
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