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Everything posted by 2.5piman

  1. Hello all, a lot of opinions but I don't think anyone mentioned that today, electric cars are charged with fossil fuel, mainly gas. The reason being that nuclear, wind and solar are always at maximum available output and the difference between demand and those three types of generators' output is made up by what are called dispachable power generators, These are gas, coal, diesel and hydro. So until there is (and there won't be for technical reasons) an excess of non CO2 emitting generated power the whole reason for going electric is false. There is, of course, some gain as far as air quality in dense traffic but no gain as far as reducing CO2. I believe the government are using a flat average CO2 per Megawatt of total demand as their basis for calculation of CO2 emissions for EVs but this is false accounting. as it is obvious that the push for evs will increase demand and that puts up CO2 emissions by that amount of extra load met by, as I say, mainly gas. Nick, you mention hydrogen; I assume you are familiar with the practice of 'snifting' compressed gas bottles before fitting a regulator? If you get a hydrogen regulator it states very clearly that you must not snift the cylinder before fitting it, as there is a good chance the hydrogen will self ignite in air. It also burns with a colourless flame. That and the property hydrogen has to seep through various materials , (not leak), due to it's molecular properties. It does make for an increased danger in my view, that, and it's relatively low energy density as it is so light. Alec
  2. Hello Peter, it really does seem that the idea (Started a long time ago by Maurice Strong, one of the IPCC instigators) that we must remove industry is valid, that's all the carbon tax will do. (Although there are bound to be traders who will profit from it, that's what money men do). Alec
  3. Hello Peter, the quantity of CO2 emitted by man compared to total quantity emitted is tiny. Co2 as a greenhouse gas is in a very small quantity compared to the main green house gas. All projections are computer modelled and make little use of water vapour in their calculations. It is called an emergency because of reading the RCP 8.5 which is a fantasy in the projection of the quantity of fossil fuel they expect to be used. It's known as 'business as usual', when in reality it is far from that. Fossil fuels provide 85% of global energy, that cannot be changed in a few decades, particularly as all the green NGOs opposed and hamper any nuclear generation project; if there is an emergency surely they would be all for this reliable and proven technilogy? We are wasting vast amounts of money in trying to control the climate; King Canute is a reminder of how well that went in the past. We should, instead be looking at adaption to circumstances and doing things better. The main decarbonising effort has been to build very many renewable enrgy generators which cannot possible replace conventional generation and maintain a reliable grid on which we all depend. From an electrical point of view they are very poor generators of power. Here's a question for you, John in the original post, wanted to offset carbon from flying. Now given that the majority of the flight will be in a frigid atmosphere, surely the heat radiated from that CO2 will have a cooling effect on the ground? Alec
  4. Hello Peter, " criterion of urgency that the climate emergency now demands " There is no climate emergency, it's all media and activists hype. Alec
  5. Hello John, why have you addressed this post to a small minority of those who voted to leave? Alec
  6. Michael. one solution is to helicoil the crank? Alec
  7. Hello DeTRacted, that is in the proposed legislation, and also the manuals. However they specify spares to be supplied withing 15 days, which is not a lot of use for a fridge or freezer if it's not cooling? Incidentally we are still using an old fashioned Creda electric oven because we cannot find a new one with the same features, high level grill top oven combined, main oven and a warming drawer for plates and cooked food. Spares are quite hard to get and I've fitted industrial temperature controllers for both ovens. I haven't a clue how old it is but it still keeps going. Alec
  8. Hello Paul, We must get out is what I said. Why, Simply so that we are not dictated to by a group who do not have our interests at heart and whom we cannot vote out, they are selected not elected. The aim of the E.U. is to control all of it's member states with no regard for them. Free of the control from this group gives us the opportunity to set our own taxation levels , to communicate directly with the global bodies who determine standards for so many goods we trade in. We hear so much about the E.U. rules we have to obey with regard to standards of goods we make. In reality these standards are determined by global organisations and while we are in the E.U. they input E.U considerations, which may or more likely do not suit our needs. This we can now negotiate directly. Do you really want to be in a country whose future is determined by a generally unfriendly body that usurps our control of what we do by democratic methods? Brexcit is not an automatic route to nirvana, but it certainly is a route that is our responsibility and any gain or loss is our decisions alone. OUT! Alec
  9. Hello TR5Star, " Let's be generous here and say that at the very least, the EU is benign " Let us be realistic, the E.U. is anything but begnign and and no concern for the citizens of it's member states. An intersting book is Varoufakis's book of his time as finance minister of Greece, and his battles with the E.U. and the various banks with regard to the Greek debt. There were various dubious methods carried out just so Greece would seem to be paying the debts to the E.U. banks Had these debts not been repaid on schedule it would have left French and German banks in dire straits. What is even more indicartive of the E.U.'s lack of consideration that they stressed that the debts must be paid on time even if it meant that Greece's payments of pensions and social service were suspended. The Greek finances were that extreme Varoufakis put forward a comprehensive plan that would enable Greece to expand it's very suppressed economy by reforming the way that tax evasion was tackled and removed a lot of the austerity measures the E.U. demanded and outlined how it could both service the debt and progress back to an increase in GDP. The simple answer was a no. Keep receiving the bailout money which the was simply used to repay the debt. He was against Grexit, which at one time looked likely, and was also against Brexit, but only because he thought that with the U.K.'s help the very necessary reforms of the E.U. could be attempted. On this I feel he was very optimistic as in reality the E.U. is an unstopable leviathon. Alec
  10. Hello GT6, it is as binding as the 1975 referenduim, and as for irregularities, neither Edward Heath nor Harold Wilson, who held the referendum, told the people of the U.K. what the intention of the EEC was which is to rule the member countries with a body that was not elected but selected as countries, individually, can not be trusted. This was the intention all along and gradually, by deception the E.U. has evolved and is getting stronger, and individual countries' powers are removed. We must get out, and while we could have got out much easier and with little disruption, the collective M.P.s have made a real pigs ear of it. After the declaration of article 50 all M.P.s should have been working together to that end. Alec
  11. GT6MK3, of course the referendum is binding, what else could it be, it was not an opinion poll? Westminster has demonstrated that it does not understand the word democracy, which is a control by all of the population using elected representitives. It does not mean that parliament decides what it wants and pursues it irrespective of a majority vote. Alec.
  12. Hello darren, induction heaters are usually workshop tools and access would be the biggest problem if you have a seized fastener somewhere on a car. One tool I consider most versatile and useful in my work shop is my oxy accetylene kit, (brilliant for that job as the flame is so concentrated), body work, joining dissimilar metals e.g. stainless to copper, heating heavy section steel for bending, cutting thick steel etc. To put this into perspective I have a Bridgeport miller, Student lathe, AC/DC tig set and a plasma cutter. Alec
  13. Hello Roger, while it is neat from an engineering standpoint, seal life is a factor and should it wear out then it's a much bigger job to replace. Maybe being a larger diameter the seals will last longer but it's worth thinking about? Alec
  14. Hello Roger, although it is quite easy to fit seals to the exhaust valves, i doubt if it makes any difference to oil consumption, and half a litre in 2,000 miles is exellent anyway. Bronze guides expand more than cast iron, so you should end up with the same running clearance when hot. Alec
  15. Hello all, renewable generation is ineffective including tidal. The Swansea bay scheme was scrapped because it produced very little power at an enormous cost, it was never really viable. I hate to think what the maintenace problems with tidal generators would be, offshore wind turbines are having problems with premature wear of the rotor blades. Someone mentioned the 'big battery' in Scotland, 50 Mwatts rating but I don't know the capcity, but it won't be much more (Tesla's 100Mwatt battery in Australia is 109Mwatt hours). Used as back up they will last only minutes. Useful for load balancing to a degree due to the fast response. Nuclear is the only non CO2 emitting technology we have that does work but the cost of fighting law suits is making it quite expensive. Even nuclear, although reliable, has problems as it can't easily be modulated to meet demand so is generally run flat out and fossil fuel stations will have to do the balancing. Alec
  16. Hello Michael, I have no experience of 360 washers (I've also run these engines for decades and not had a thrust washer problem) but from an engineering theoretical aspect the caps are not designed to take end thrust, the block is far more rigid? Alec
  17. Hello Greta, many after market cylinders come with remote reservoirs, so that is another option? Alec
  18. Hello Greta, I wish No was a much longer word so it would have more impression. There is no climate emergency, even the IPCC do not claim that. Alec
  19. John, I wouldn't read too much into that 'million', no doubt many came from far away but London is an area that is strongly remain area and has a very large population. (I've no idea of the current population but it was in the order of 7 or 8 million I believe, perhaps more?) What annoys me more than anything is that a referendum was held and all of our elected representiitves should have been working to that end to secure the best deal possible. We all know that this did not happen and that the negotiations have been poorly carried out. It's time to get Britain out of this mess of an E.U., there's no doubt that we will suffer for it in the short term but we have a very long time to get our house in order and start to reap the benefits of independence. It will take some good governance, so our politicians will have to throw away the rubber stamp and start listening and learning. In Holland there has been an upsurge with a new political party and has won a significant number of seats on an anti E.U. platform, amongst other aims, The Forum voor Democratie has taken the current government's senate majority away. We are not the only country that feels this way by a long chalk. Alec
  20. Hello John, easy enough for you as you have a lathe I seem to remember? Solid bar would be preferable to give a greater wall thickness, but more work of course. You don't need to use shims at all, if you turn up over length slightly, assemble and check the end float, then skim one end to achieve the correct end float, 2 to 4 thou like the rear hubs on a saloon? Alec
  21. Mennor, what you say is true but only half of the story. One part is that the wind farms are in the north but the power consumers (industry) are in the south and a vast programme of transmission line construction has started, at a huge cost, to connect the country directly. A lot of their power is currently (sorry) routed through neighbouring countries and it destabilises their grids. Wind energy in general is not a stable source of power particularly in variable wind speed conditiond. Without the inertia of thermal turbo alternators the system would not work. Also wind is not dispatchable , i.e. it does not cater for load increase or decrease, this balancing is done by thermal generation.. Unfortunately the general public is never informed of the very many real drawbacks of renewable generation and the real liability is that there are times where Europe is becalmed so virtually no wind power. This actually means that we need as much thermal generation capacity as peak grid demand meaning all the capacity of installed wind generation is wasted. No wonder Germany's electricity is so expensive, similarly as is ours. It is ludicrous that our government is planning to shut the few remaining British coal fired stations without any plan to replace that plant with new dispatchable plants. Not only that it leaves our grid at the mercy of gas supply and this is generally constricted during very cold weather, when peak electricity demand is greatest. We relied on coal to keep our grid functioning when the 'Beast from the East' hit the U.K.. That will surely occur again in the future. The relatively minute amount of CO2 from these stations is not a reason to shut them without adequate replacements. I believe it's a matter of when not if we have a major grid failure due to the inept policies of various energy ministers of our government. Because of this I have bought a diesel generator for our small business as insurance. Alec
  22. Hello Rod, the thing to remember si that the E.U. has never been a democratic institution, it is a supranational one and run by selected officers. Alec
  23. Hello RedRooster, " They could have left the washers off too " Many a true word said in jest. Colin Chapman saw a new mechanic to Team Lotus working on one of the cars and he ordered him to remove all the washers he had just fiited on whatever he was working on. Add lightness was one of Chapman's mottos. Alec
  24. Hello all, I think there is some confusion here between Europe and the European Union, which is not a country at all but a ruling body over all member countries. Run by selected not elected people who wish to subvert all national aims of their members. The whole purpose of the European Union is control and not trade as we were told originally by Heath and endorsed with Wilson's referendum in 1975. It is proving to be very difficult to extract ourselves from this dictatorial body and will, no doubt take many years before we can start to really make headway again. We need a better class of politician if we are to make the most of our opportunities, as they have been out of practice for forty years or so as rubber stamp weilders of legislature. To compound it they seem to not only have passed into law the directives but gold plated them making them even worse. A classic example is the Climate Change Act, a law that is so detructive to the U.K. and yet all but 5 M.P.s voted for it. Alec
  25. Hello Paul, forgetting the very small amount of hydro, imagine two scenarios, no evs and evs. The grid load will be x with no evs and x + ev's , renewable genration cannot respond to load, you get what you get. With the + evs that extra load will be provided by more fossil fuel generation, in effect evs are fossil fuel powered. This is unlikely to change for decades and begs the question why are we expending large of amounts of money promoting them and adding extra infrastructure.
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