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Bill

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Posts posted by Bill

  1. I've tried the fog excuse for staying at the pub but she never believes me. I remember those fogs (smogs) back in the sixties and they were particularly bad the nearer you were to the river. These days though, the younger generation think its bad if it gets a bit misty having never experienced a proper pea-souper. Back then, the air was so full of smoke particulates from all the coal fires that smog formed very easily but by the seventies most folk had changed to gas and electric and it all changed. The only time we saw fog/smog after that tended to be the morning after bonfire night but even that's rare these days since they restricted fires to organised events only.

    On the battery thing, they tend to be guaranteed to retain 75% of their capacity for between 5 to 8 years. I just found an excellent web page that gives a really clear and understandable overview on this, including the what happens when they start to fail. https://www.edfenergy.com/electric-cars/batteries 

    Bill :) 

    • Upvote 1
  2. Quote

    Davy said 

    Modern technology & the rise in car ownership has given us traffic exhaust pollution instead.

     

    This should read. Modern technology has allowed a rise in car ownership with an overall reduction in exhaust pollution.

    A single car from the sixties apparently produced more emissions than a whole fleet of modern vehicles and I'm not talking here about electric cars. It surprised me given the huge increase in the number of vehicles since then but check out what Mr Google has to say on the issue, I think you'll be surprised as well. I thought something didn't quite add up when the WWW article I mentioned said that wood burning stoves in Warrington produced four times the pollution of all the cars in the town. Interesting eh?

     

    Bill :) 

  3. I don’t know how long a formula 1 battery lasts but you can bet it’s not measured in years. But the point I was trying to illustrate was that lithium batteries are significantly different to lead acid and can accept a much higher rates of charge. Most things in F1 are pushed to breaking point but they can’t afford things to fail so that’s where the super caps kick in, protecting the battery from sudden high current demands. F1 is a virtual testing ground for our future cars.

     

    Bill :)

     

  4. I’m not too sure about that Davey but a normal lead acid battery and lithium based one are two very different technologies. I know the lithium cells in mobiles are designed to be charged as quickly as possible for convenience while internal electronics regulates the charge to ensure battery life. That’s why you’ll never see trickle or high power chargers for phones.

    The fast chargers are charging at the optimum safe rate for the battery and the only reason we have slow home chargers is down to the cost of the charging unit and how much power they can supply from a three-pin plug. Whether or not they’d last longer if you charged them slower, I don’t know.

    As a matter of interest, formula 1 hybrid cars use a combination of lithium and special super capacitors that charge in a matter of seconds and I believe that this kind of technology will in the future find its way into our everyday cars.

     

    Bill :)

  5. These are just technical issues that can and will be sorted out.

    From what I understand, used batteries do have a value and several car makes have partnered with power companies to make use of them as backup storage that could help to eliminate the risk of blackouts. Depending on which website you look at it's either an environmental nightmare or a brilliant opportunity for the power industry. The neysayers would have you believe that there will be an enormous mountain of scrap cars,  all having different batteries and nobody has a clue about how to deal with them.  Others suggest all manufactures will take back their own used batteries and with their specific knowledge will fully understand how to reuse or recycle them. I'd like to think this second option is more likely to be adopted.

     

    Bill :)

  6. So based on these figures, the car could probably get you to St Ives with just one pit stop assuming you start off fully charged. 

    The upper figures are a bit academic because nobody would run a car down to the point where it conks out, well not if they have any sense and that's no different than with a petrol car. And when it comes to charging, you don't need to brim the battery especially if your in a rush, again much the same as you do with a normal car. Course the battery takes time to charge but that's not really a problem unless you stand there watching it. After a three hour drive though, I'd need at least a 40 min break but then I could just drive away rather than having to go queue for for petrol. 

    Where we are now with this new technology is probably much the same as when petrol cars first appeared. I'm sure that they didn't go that far and there weren't that many places to fill up but the cars and the infrastructure got better and the same will happen with the electric vehicles. 

     

    Bill :)

  7. Oh come on Sid, why take things down to the lowest common denominator. There are some cars (but not many) that are the mopeds of the electric car world with a 70-mile range but people who buy them know they’re just run-arounds. As for 8-hour charging, that’s only if you plug them into the three-pin socket at home which you can’t do on the motorways.

    Leaving out the extremes, a more typical electric family car will beat the train every time, even with stops for a recharge and cost a fraction of the train price.

     

    Bill :)

  8. Driving to St Ives takes about 5.5 hours by car, call it 6 with a break and uses about £70 in petrol.

    Even if you didn’t take your car, the train takes over 8 hours and costs between £150/£410 per person so a family trip would probably cost well over a £1,000 even off peak.

    An electric car should do it in the same time as a normal car but only uses £13 of electricity and even if you had to stop twice to recharge, it’d still be quicker than the train.

     

    Bill :)

  9. Quote

    Baz said Companies are going to have to come up with a large family car that can fully charge in less than half an hour and have a range of about 500 miles per charge...

    The companies will only make the cars that people want and more importantly can afford. On average, we only drive 20 miles a day (or a week in my case) so the current offerings with a typical range of 100-150 miles are acceptable and affordable so at the moment that's what they'll make. How far a car will go without refuelling is important but for most it’s not the primary consideration. Even the expensive Teslas only manage a about 350 miles, so one that does 500 would be so costly it probably wouldn’t sell.

    As for the charging, as I’ve said before, I don’t think it’s quite the issue that some make out. Sure there’ll be some where an EV wouldn’t be suitable but there’s 15 years before you wont be able to buy a petrol car and probably another 15 years before those fall to bits. That’s a lot of time for things to evolve and change.

     

    Bill :)

  10. Well for the younger generation this is just a mild flu like thing that's been blown out of proportion  so to many of them it's just not that important which is a rather selfish point of view. And speaking of common sense, it's not just lacking in the younger generation. Iv'e just got back from Sainsburys where the shelves of toilet rolls were down to about 25%. One bloke passed us with a trolley absolutely full of rolls. The wife saw him coming and told me not to say anything, but stuff it, he deserved to be called a plonker! 

    Does a beef stake actually help with a black eye :) 

    Bill :)

    • Haha 2
  11. Quote

    I'm betting that unless you are visiting a 3rd world location, we should be ok 

    But the thing is it seems to be the more affluent countries where the spread of infection is the greatest and i think foreign travel has been the root cause. 

    My wife told me that she saw something on telly yesterday about a school that despite everything was still planning to take kids on a school trip to northern Italy.

    Bonkers!

     

    Bill :) 

  12. That’d make sense, a big on/off switch a bit like the emergency cut off switches you see on busses.

    I think the batteries at several hundred volts would still be risky so maybe the battery manufacturers need to do something similar to reduces the voltage down in an emergency. From what I’ve read, the batteries in formula 1 cars run at 1Kv+ which is about four times the voltage of a standard road car and it’s expected that in future most cars will follow this trend.

    I think the logic is that higher voltages don't need expensive, heavy lossy conductors thereby increasing overall efficiency.

    Maybe they could make the voltages more extreme and that way we could power the car from static electricity! 

     

    Bill :)

  13. I’m pretty sure that electric cars would have an automatic cut off device like that of a conventional car that in the event of an accident would automatically disconnect all the higher voltages.  But as you can’t see electricity, anyone dealing with a crash situation would need to understand the risks involved and take the necessary safety measures. More and more cars are going this way so the emergency services and breakdown people will obviously need to be trained to deal with this rather than calling out an expert every time.

     

    Bill :)

  14. Well at least with no petrol there’s no chance of a petrol tank explosion so not quite as big an issue.  As for the breaking down, well there’s no complex engine to go wrong so in theory they shouldn’t conk out anywhere near as much as a conventional car.

    Looks like the AA who rely on breakdowns will need to change their plans.

     

    Bill :)

  15. BTW that friend of mine that was due to fly out to Tenerife on Friday had second thoughts and cancelled his holiday at the last moment. He said for the sake of a couple of hundred quid  it just wasn't worth the risk of getting the bug, getting stuck out there and most importantly appearing to be irresponsible given all his palls were at the age where the risk was greatest.

     

    Bill :)

  16. At those sorts of lengths your not going to pick it up yourself and you'll need to have it delivered.

    When I was building my extension a couple of years back I just ordered the stuff on line.

    The large suppliers offer the biggest range, give the best prices and have a network of local depots.

     

    Bill :)

  17.  If there was a large steel works its most likely that it would be near the railway but I've never heard of this, maybe he's got his lines crossed.

    Was there was a line running down Dallam Lane with some pretty big industrial units on the other side.???

     

    Bill :) 

  18. From what I've read, the mortality rate is ten time higher for this virus so it has the potential to see off a lot of us oldies. 

    One of the blokes I sit with in the pub is due to fly out today for a week in Tenerife. The others in our group said jokingly that he'd have to sit at another table for 14 days when he gets back but maybe they weren't joking. 

     

    Bill :)

  19. That’s true in most cases but the Mersey’s tidal so no mater how much dredging you do, when the tide comes in the water levels rise and that’s when the flooding gets bad. I think if we could do a Canute and make the tide stay out, we’d have a greater height differential so water could flow away faster.

    On a spring tide, the water flows right over the town weir and goes up as far as the one at Woolston. I thought the world had tipped on its axis or something when I once saw the water running backwards through Woolston park. It was like a mini tsunami that back washed all the crap from somewhere downstream including a million plastic bottles, polystyrene food containers and 13 footballs (yes I counted them and took a picture).

    Anyway, my heads hurting now with all this fluid dynamic stuff so time for a fluid nightcap!

     

    Bill :)

  20. Just been thinking more about this dredging thing and if it would have any effect?

    Suppose instead of just dredging out a few feet of mud, we could dredge down a mile deep, and do it all the way to Liverpool.

    Surely the resulting big hole would just fill up with water and within a few minutes it would be back to exactly where it started from and that mile of water would simply stay there doing nothing forever.

    Or have I got that completely wrong?

     

    Bill 😊

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