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Muhendis

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Everything posted by Muhendis

  1. Thats an interesting explanation. Many years ago, my architect told me it was a requirement to show where columns and beams were.
  2. Forgot to add. The total weight of batteries was 918kg
  3. The batteries I recently had delivered cost quite a bit because of import duty, excise tax (not the same as duty), Dept. of interior tax and VAT There were also a few backhanders in amongst the add on bits because my import agent had to be extra nice due to short notice of import. There was also TISI to be lubricated to allow new technology to be imported by me in particular. Delivery cost to Bangkok port at $478 was included in the price. Total added bits came to just over 25% of the "Made in China" price. The agent I used, Mac-Nels Shipping, is absolutely the best and kept things moving fast.
  4. The optimist in me says "things are looking up". The pessimist in me says "but wait and see".
  5. Why are people arguing about underlayings, whatever that is, when the OP is about glue to stick a tile.
  6. All this is only my opinion of course. I agree with this. It is good to see such exciting progress in auto transport but filling up a battery of the size which can take you 1,000km on a single charge will need lots of power/time. This is especially true if the entire population all have electric battery vehicles. Just imagine if they all want to "fill up" at the same time. Yes and no. After 1 million km the battery will outlive the mechanical life of the car so the scrap frequency will be lower. For example. If you double the salvage costs but also double interval then relatively the cost is still the same. Gotion is not the first. https://cnevpost.com/2022/07/12/catl-said-to-mass-produce-lithium-manganese-iron-phosphate-batteries-within-this-year/
  7. If you're anywhere near Buriram, there's a nut and bolt shop there that sells every conceivable nut and bolt in all sorts of materials. The stainless range is only available in metric. The place is an Aladins cave of difficult to find stuff. PM me for directions
  8. I had a similar problem with some balcony tiles a few years ago. I ground down the edges a bit to make sure the expansion problem was no more and used "No Nails" construction adhesive. Never had any problems since. Village builders are notorious for not knowing much about laying tiles with the correct spacing.
  9. Correction There would be no life without them
  10. He's a big fat pigeon. Undoubtedly, his extra weight is causing subsidence.
  11. can you get spares? Or would you need to re-do the whole lot with different expensive tiles.
  12. Blue pipe for cold water is pvc which gets softer and softer the warmer the water. Green pipe is PPR which has the tongue twister of Polypropylene Random Copolymer. It's good for high temperature water and has excellent thermal resistance.
  13. That is for any lead acid battery in any state of bashedupness. Also that is the price in sunny ol' Buriram scrap yard. Raw batteries you say. Might try grilling them first next time to see if price is better. Here's an interesting recycling explanation. https://www.batteryrescue.com.au/news/lead-acid-battery-recycling-process/
  14. The temperature range is 20 - 30ºC for lead carbon batteries which is pretty much the same as Lithium in it's various chemistries.
  15. Yeah. I got TBH14,600 scrap value for my old 'uns.
  16. Cheap used car batteries is a waste of time, money and effort. A used car battery has been changed out of it's car because it can no longer crank the engine enough to start the car. In other words it is knackered. The internals of the car battery are relatively thin lead plates designed to supply high current in short bursts. This is something they do very well. The down side of this is that the plates don't have the capacity to deliver any useful current for a sustained period of time. How often have you left your lights on for a time only to find the battery hasn't got enough left in it to start the car? A deep cycle battery uses much thicker lead plates which won't have the same cold crank amps as the thinner plates of the car battery but the deep cycle battery with it's thicker lead plates is very good at delivering continuous current for much longer periods. Many proponents of lithium chemistry batteries are of the opinion that the lead acid battery in all it's forms is done for and not worthy of consideration for ESS. But that is not true. I have just installed a number of lead carbon batteries which, after just a few days, have reversed all the negatives people have of that chemistry. My nice new batteries have already demonstrated one of the manufacturers claims. They have charge acceptance which is four times faster than other similar non-carbon types. This is useful if you have an EV and want to start charging earlier. Similarly lead carbon batteries can discharge much higher currents in a similar way to super capacitors. I have yet to test that. Cycle count at DoD of 80%, which for a conventional deep cycle battery would be in the order of 300 'ish is now up to 2,000. At 30% DoD every day we would be looking at 11.6 years life span. At the moment there is the caveat of temperature at 25ºC. I am however assured by the manufacturer that this type of battery has a better high temperature characteristic. I am currently waiting for more information on this. The down side is they are hernia inducingly heavy. So not good for anything portable. For ESS this weight is not a problem because, by definition, they are a stationary power source. The other advantage of the lead carbon battery is cost/kW which comes in at TBH 4,141. Assuming the batteries give 10 years service then we have TBH 414/Kw/year.
  17. I wish them luck also. Trouble is that the rules were changed some time ago to ensure that the military always had a large say in the running of the administration. That is likely to be the big stumbling block for the democratically elected government. I think it will be very difficult to return the full government to civilian control.
  18. Speaking for yourself. How so?
  19. Don't be so melodramatic. This is nothing more than the prelude to the next coup.
  20. Ha Ha Ha Herbivores do exactly that very successfully. Leg of mutton looks like meat, tastes like meat but is derived from plants.
  21. Wrong to blame marijuana. The blame is that old chestnut "nobody tells me what to do" syndrome.
  22. Excellent stuff. looks like a top level inverter. Tell me something. Looking at the inverter display panel in the top right corner does that symbol mean it can also test motor vehicles for road worthiness?

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