southernman
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Posts posted by southernman
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Wheels, $ 5 to $10 per fill according to this: link for a NZ fill.
You can't really compare a Tesla US 70k to a 35k car. Just not the same vehicle. I drove one for 4 days in the US last week, Model S P85D and in insane mode it's awesomely quick. I think this model is around 130k US. They are quicker than most sports cars.
This shows just how quick it is: https://www.youtube.com/watch?v=9cA1doO_9h8
Like it or not they are coming and will continue to get better and drive battery technology. The only problem being the current price of oil!
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Sooo, you leave everything switched on when you are not there?? OK so I could understand a fridge, microwave and pallet fire, but the rest?
But OK, even if the TV and DVD player and any electronic device and I can't speak for Pallet fire, failed due to spike, it is two and perhaps maybe three components that need replacing. 1 fuse and one or maybe sometimes two VDR's. These little components simply dead short once a set voltage is reached and in a "crowbar affect" simply cause the fuse to blow.
I have had to fix equipment after Lightening strike and I can guarantee that the separate eternal surge protector will not protect and the internal ones will not either. The Voltage simply leaps across everything.I have also worked on equipment after a 33Kv line fell down across a 400V line. The House mainly affected had the switchboard blown completely off the wall. All the wiring was simply blown away. Every electrical appliance that was plugged in was destroyed. Even if the item was not switched on. The Voltage simply lept across open switch contacts and destroyed everything. Surge protection, both external and internal never had a chance.
What many people don;t realize is that Power Supply companies have to ensure the Voltage is no more than plus or minus the 10% range of 230V. In the extreme situations where damage occurs due to high voltage spikes, they are actually liable and tey carry an insurance. The above situation was completely covered under their insurance. Lightening would be an act og God I expect.
But anyway, this has all side tracked away from the actual discussion. My actual point is, that both Hardly Normals and the sales staff earn extra commission for selling the extended warranties, (which also include the surge protection device) which os why it is pushed so hard.
Fair enough. I just checked and these ones have been supplied by Orion the power guys! They are industrial looking things. Wife tells me we have a box of them from the networks people and so does everyone up the road. We have a transformer up on the ridge where we are and power spikes are a real problem. The last insurance claim was extensive. Yes we now unplug the stuff we don't use or turn it off but it's like a second home as I work there 3 days at a time now I have sat internet.
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All I know about power surge equipment is that after loosing our pellet fire, microwave, hair dryer, TV, DVD player, washing machine over at the bach due to power spike and then installing plug in power spike protectors they work. Oftener we arrive to find them blown, black or dead and the appliance attached is ok.
Sure when i'm at Harvey Norman I don't buy one with the lap top but they do work it seems.
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Two words Phosphoric Acid - cheap and buy it in bulk works a treat on all stainless and good for steel surface preparation.
Anzor are not too bad but don't pay their cash sale account rate- God that's asking for it!!
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Power use is the challenge we are working on at the moment. We are not so much concentrating on the small boat market at the moment but looking at 50 plus feet boats really. On a boat of this size and with paying guests 2500 llitres a day is actually around the figure of total waste. Take 5 people and a shower a day each for 5 miinutes - being conservative that is 500 litres alone (we are talking a charter boat here with water maker). It actually adds up quite quickly. Of course cruising is a different story but this is the market right now we are looking at. At the moment we are using 20 amps at peak load ( 24 volts DC ) but only for short periods of time. Our aim is to reduce energy consumption by increasing cycle times, but without adding age to the influent.
What we are doing is not top secret at all - in fact many are already used on super yachts. The key at the moment is to make a small version that is energy efficient as well. I hope to have a fully built prototype within a couple of months. Attached is a overview of the ultimate approach for onboard treatment that is currently being used on super yachts. http://picasaweb.google.com/lh/photo/kryc4leAOhNQml34w0aB-DdFNT9Dcc_CLxI4Uib594w?feat=directlink
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yep can't see why anyone would have a problem with the finished effluent. We have been as low as 2 cfu in finished effluent so better than some drinking water around the place.
Ok, so here is the drama 2300 litres a day of waste treated and the size of the unti will be 500 x 500 x 680mm so not that bad but you will need a holding tank on top of this, as the system operates in batches.
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Ok, UV will only work if it's part of the process, and then energy and retention times will be issues also. The best path forward and it is possible is using what is called a membrane bio reactor or MBR for short, google it. I can't say too much as the project i'm working on right now is finalising the design on a low energy enclosed MBR that will fit in most 40 foot plus boats and is the size of a larger holding tank.
UV is known for ballast water treatment which I am involved in for large ships. This is now a common accepted process for ballast treatment for discharge and as you probably know is required now in many countries. I design and engineer UV systems so if anyone needs one I can do you a deal.
UV can also be used on treated wastewater such as maceration, chlorination then Ultra Violet. UV won't work on large particles as the particles will shield the UVC light and you won't get disinfection. Therefore the particle size and suspended solid counts are key to getting things right. While treatment is a pain for smaller yachts and I don't always agree with it, i'm sure everyone has been in smelly anchorages where the water is covered in sh*t - especially in Europe so I can sort of understand the need.
Reviving dead lead acid batteries
in TechTalk
Posted
There is a calculator you can use on tesla's own web page down the bottom of the page https://www.teslamotors.com/models-charging#/calculator
I don't think electric cars are going to be aimed right now at every kiwi, only those who see the value in them and those who can afford the capital purchase price. In the US especially California there are large rebate schemes to push the sales of electric cars which don't exist here I think, could be wrong I guess. If you think more a long the lines of pollution reduction and other benefits such as safety, self drive radar etc etc it's a no brainer.
It wasn't long ago that Kiwis and Aussies still thought the commodore was the best car out there and everything else was junk, and look what's happened to them now. Early adopters pay the price for sure but there are some people who will do it including myself. My next cayenne will be a hybrid.
Towing is another story for now, sure the old Ford Ranger will have to be kept in service instead of an electric car for that. After driving one last week there are just so many advantages such as lack of engine noise, user interface and the driver radar really works so well on the highway's that I didn't touch the wheel for an hour at a time. The charging stations work quite well although there don't seem to be enough of them. Twice we had to wait to charge because all the stations were full but to be honest we were in no rush to a coffee and off we went.