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Everything posted by Muhendis
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Report Thai Air Force Helicopter Makes Emergency Landing at Roi Et School
Muhendis replied to webfact's topic in Isaan News
Hey. Wearing sunglasses is cool. But totally unnecessary. -
Surface water is rainwater that has soaked into the ground picking up all sorts of unmentionable rubbish on the way. As you know, rainwater is inherently softer than a babies rear end and needs only minimal softening. So it is not unreasonable that the resin needs only occasional rejuvenation. Depth of my surface water well is 5.5 Metres which is enough for most of the year. Any shortfall is made up from the local lake filtered and pumped from a government pump house which is just down the road from my house. Your description of the Home Pro filter tank sounds like the sort I use. I have two with carbon filter media and one with resin. Non of them are automatic. This is a very interesting situation. How far away are these wells from your point of use? Rather than use the borehole water which will not be so good from a hardness point of view, could you not route some of your underground stream water to your filter/pump house? (I am making quite a few assumptions here.) Point about the 10% improvement figure I mentioned. This is a 10% reduction in hardness. This translates into something like:- If you needed 100 bars of Imperial Leather per month without the resin filter the you would need only 90 bars of same when using resin filter. This 10% figure comes from a water supply equipment company here in Buriram. Have you had your borehole water tested?
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For clarification. The brine is dumped onto the lawn and what passes as flower beds. The grass fails to turn a funny colour and other plants seem to be unaffected. I've had no feedback from the ground dwelling insects. It should be noted that the amount of brine is about 100 Litres. When the brine is dumped the solution gets weakened by the fresh water used to flush the brine after it's rejuvenation task has been completed. Public sewer? There is no such thing as a public sewer where I am. Everyone around here has a septic tank.
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I've never heard of salt softeners before. I use a resin ion exchange softener.My water source used to be from a bore hole but it was way too hard even after the softener filter. Apparently, the best you can expect from a resin softener is a 10% improvement. My hard water was causing serious plumbing problems so I reverted to my surface water well for all my needs. The surface water is soft from source so the softener makes it super soft and saves a fortune in soap. The resin softener does need to be rejuvenated occasionally (about every 18 months or more) with a brine solution but there seems to be no ill effects caused by the dumped brine.
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I hope I will live long enough to see.
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Thailand is certainly not poor, but the money is not in the hands of the millions of people who would need it to break free of PEA/MEA.
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And there you have it. That is the only reason Thai people don't go solar. Solar installation costs are well beyond the budget of the poor folks who would benefit the most and these poor souls are least likely to have the skills to DIY. Add to that a certain lack of enthusiasm on the part of the government majority owned PEA and nothing happens.
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Thank you. What is your water source?
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In addition to what Crossy said. The saying that lightning never strikes twice is not quite true. The following is what you need a fuse for: Nearby lightning strike generates EMP which causes MOV to degrade a bit. Next strike a few seconds later the EMP may ignore the MOV and start partying around the electrics. The fuse will blow and stop the second EMP pulse doing damage. If the fuse does blow then it would be sensible to replace the MOV at the same time as it would have been stressed to a greater or lesser degree..
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Very interesting topic for me. Can anyone tell me if crushed plate glass is better than Zeolite for reducing turbidity in water?
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Report Cambodia Condemns Thai Temple for Imitating Angkor Wat
Muhendis replied to snoop1130's topic in Isaan News
Maybe it's a copy of Phnom Rung? Come off it Cambodia it looks nothing like any of your temples which, I should point out, are copies of Indian temples many of which are dedicated to the god Shiva. -
That is absolutely correct and Huawei went to a lot of trouble to make it so. Having said that I wouldn't bother to do that If I was a battery manufacturer. I would make my batteries as compatible as possible to enable retrofitting and after-life replacements. This is from Mr. & Mrs. Google Sodium-ion batteries, like lithium-ion batteries, employ a CCCV charging method. This involves an initial phase of constant current charging until a predefined voltage threshold is reached, followed by a constant voltage phase where the voltage is maintained while the current gradually decreases. A configurable lithium-ion charger can be adapted for sodium-ion batteries by adjusting the voltage settings, as the same Battery Management Systems (BMS) integrated circuits can be used for both types of batteries. So although they are not quite drop in replacements for lithium ion chemistry batteries, they are not too different. Just don't expect to use 'em if you have a Huawei inverter.
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That is correct. but the term "inverter" is a bit of a misnomer. It is the MPPT charge controller that charges the battery not the inverter. Currently, inverters tend to be all in one kits which include the charge controller. In the case of the "all in one inverter" the charge controller may not have the flexibility to be adjusted for different battery chemistries. But, as long as the charge controller has a manual setting it will be possible to adjust the charging voltage to suit any battery chemistry. It would be very difficult for any battery manufacturer to make a bespoke battery which only one charge controller (theirs) can charge.
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Spanish Power Outage - The Official Report
Muhendis replied to Crossy's topic in Alternative/Renewable Energy Forum
There's a whole load of technical double talk in there which explains in grandiose detail what only experts can understand. Anything to keep the politicians out. I strikes me that there should be an independent frequency source to control national grid frequency nationwide rather than relying on generator frequencies pulling each other into line. Each generator has to be phase locked to this national frequency. -
Good question. However, shouldn't you be comparing prices of Lithium batteries in Europe with prices of sodium batteries in Europe? Also it's early days with batteries going to premium installers. I would expect the prices to reduce once costs have been recovered and bank loans paid back. Yes. I wondered about that too. The wording is proprietary inverters
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Please note. As far as I am aware, Apps are effectively a direct online link between customer and supplier and as such are very secure. "Online" banking is via a web browser. This is not secure in the same way as an app. For example. How many times have you looked at something on the internet and later received advertising for the very same thing. That is not a coincidence. They are watching you
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This article caught my eye earlier. https://www.ess-news.com/2025/06/16/italian-startup-releases-9-8-kwh-sodium-ion-battery-for-residential-applications/ Good news but I think it will be some time before such batteries are available here in Thailand. At daily 80% discharge they will live for almost 18 years. Can be discharged to 100% (but I doubt they would live very long if that happened too often). Italian startup Heiwit has developed a sodium-ion battery for residential use. Heiwit said the battery poses a lower fire risk, avoids materials with significant geopolitical concerns, and offers easier end-of-life recycling. “The overall cost is lower than lithium counterparts of equal capacity,” the company said in a statement. The system measures 700 mm x 480 mm x 170 mm and weighs 130 kg. It has a nominal power of 10 kW and an energy storage capacity of 9.8 kWh. The company said the system provides a round-trip efficiency of 95% and supports a 100% depth of discharge. It operates in ambient temperatures between -10 C and 55 C and offers a reported lifespan of 6,500 cycles at 80% depth of discharge. Heiwit conducted tests at its experimental plant in Caronno Pertusella, in the northern Italian province of Varese. “The battery, connected to a proprietary 6 kW hybrid inverter, is now fully operational and able to manage the storage and distribution of energy produced locally from renewable sources,” the statement said. During initial testing, the battery maintained thermal stability, with cell temperatures between 27 C and 28 C even under high cycling conditions. The company said the battery can reach full charge in under two hours due to “optimization of the cells and the advanced management of the inverter.” “This reduces the risk of overheating, prolongs the useful life and improves safety, making the system also suitable for installations without active temperature control,” added Heiwit. “The system can already be ordered,” said CEO Alessandro Gallani. “For the first few months, priority will be given to premium installers, with technical visits available at the headquarters to evaluate performance in real conditions.”
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I just came back from visiting SCB in Buriram and received confirmation that age is not a problem for them. Tomorrow I will put that to the test and open an account. I will also register for the app. It seems a good idea to keep both accounts, Krungsri and SCB, open until standing orders and received payments are all confirmed.
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Crime Scam Complaints Surge Again as Call Centres Change Tactics
Muhendis replied to webfact's topic in Thailand News
Looking at your ID picture, that shouldn't be too difficult. -
Report Thai Street Food and Beverage Sector Faces Three-Year Slowdown
Muhendis replied to snoop1130's topic in Thailand News
And there was me thinking that street food was all cookery hand carts and tables 'n chairs on the pavement (sidewalks if you are foreign). -
I just got back from my meeting and it turned out to be a fruitless exercise. The opinion from the banks point of view is that, after your 70, you will not be able to remember passwords and pin numbers. I pointed out that if a 70 year old can't remember an app. pin number then you should withhold ATM access cards for the same reason. My wife added that Krungsri might well loose a lot of customers because of this rule. The young lady behind the counter agreed with this but then being as it's not her problem, I suppose she would. She did say that the rule was not limited to foreigners.