Lister Engine Forum

General Category => General Discussion => Topic started by: guest22972 on December 22, 2018, 12:55:46 PM

Title: Before it's all over.....
Post by: guest22972 on December 22, 2018, 12:55:46 PM

Merry Christmas to every and all.  I hope you have  wonderful Christmas with loved ones and a great new year that brings all you want and more.

As pathetic as it may sound, this place and all of you bring me a lot of comfort and contentment. It's like a sanctuary of right thinking amount a world gone well past mad.
I love to log on here and see a long list of unread topics I can digest, learn from and then bore you all with my rants and carry on.
 I look at other forums and just shake my head in disbelief maybe most of all at the mindset so many have today. While we don't all agree here all the time, I never get that feeling to want to bang my head against a wall at someones way of thinking that shows they have no clue about life, the world and are obviously caught up in PC and modern thinking crap.

I'm sure I cause a few heads to be banged on walls but thanks for putting up with it or even just skipping on by. So many of you I'd like to meet and see you in your natural habitat and some I will make a point to annoy on their doorstep one day.

Thanks Ade for keeping the place going and providing an outlet and an internet family for many of us here.

Merry Christmas and Happy New year to you all!
Title: Re: Before it's all over.....
Post by: LowGear on December 22, 2018, 04:00:41 PM
Ahhhhhhhhhh, Merry Christmas to whoever is holding glort.  And the rest of you as well.

.............??

I'm not paying any ransom.  Oh yeah; Happy New Year as well.

]https://www.youtube.com/watch?v=zIWHWjddGsQ[url] (https://www.youtube.com/watch?v=zIWHWjddGsQ[url)[/url]

Title: Re: Before it's all over.....
Post by: guest23837 on December 22, 2018, 04:16:57 PM
Happy Christmas to you and your family Glort and all the best for 2019

With all its sham, drudgery and broken dreams, it is still a beautiful world. Be cheerful. Strive to be happy.

Max Ehrmann
Title: Re: Before it's all over.....
Post by: dax021 on December 22, 2018, 06:42:43 PM
Ditto to all of that,
Cheers,
Peter
Title: Re: Before it's all over.....
Post by: dieselspanner on December 22, 2018, 09:47:21 PM
All the best from the Pyrenees, keep it coming in '19!

Cheers
Stef
Title: Re: Before it's all over.....
Post by: LowGear on December 22, 2018, 10:19:34 PM
Ok glort, you got me,

The last friend that was being held in London because his wallet had been stolen and he couldn't pay his hotel bill - I did offer to send $14.37 by regular mail.  They didn't send me an address?

We are in "the season" now so I don't wear red when I go to town.  "No lady, no one has ever asked me if I play Santa?"  "My PO won't let me."

Title: Re: Before it's all over.....
Post by: guest23837 on December 22, 2018, 11:10:34 PM
I bought a Lister AC1 OR AD1 not sure which yet attached to a pump on a trolley for €60.00 Its a present from me to me almost stolen its electric start and there's some type of seized belt drive compressor on the front that's connected to the air intake. I might start a new thread on this machine sorry I reverted to diesel talk so quickly Glort!
Title: Re: Before it's all over.....
Post by: ajaffa1 on December 23, 2018, 06:47:45 AM
Merry Christmas to you all, here`s a video link that then green washed are going to hate: https://www.youtube.com/watch?v=E0W1ZZYIV8o

You can`t alter the facts and figures so I guess we`ll have to stick with diesel for now  :laugh:

Bob
Title: Re: Before it's all over.....
Post by: cujet on December 27, 2018, 01:21:32 AM
'Twas the night before Christmas and all along the border
The illegals were stirring, no papers in order
A wall was prevented by democrats who "care"
In hopes that their new voters will soon be there....
Title: Re: Before it's all over.....
Post by: BruceM on December 27, 2018, 03:17:48 AM
The idea of a wall is appealing in concept for those who haven't really studied the southern border, or visited the communities that straddle the boarder, most in complete peace and harmony and without criminals.  Big Bend National park is just one area that helps explain why it is not so simple, and is likely a huge waste of money.

Border security could be improved greatly in many other ways, for a whole lot less.  Cut the spending on nuclear weapons upgrades and you could fund it easily and a whole lot more.

The military secures area 51 and many other large secure facilities extremely well without building massive walls. 

I don't want my tax money (and the future debt put on niece's and nephew's children) squandered on ill considered fantasies. We are running a HUGE deficit, value of my fixed income and savings keeps falling, and my food bill keeps rising.

There are many bigger threats.






Title: Re: Before it's all over.....
Post by: guest23837 on December 27, 2018, 08:50:41 AM
Israel built a huge wall between them and Palestine doesn't seem to have done much good the Palestinians are tunnelling under it and they  aren't tunnelling to Israel for jobs picking fruit or cleaning offices. It's technology that's finding the tunnels.
Ireland is a very small country with a land border with the UK of 300 odd miles. In March there will be a border of sorts not a hard border but a technological border with cameras, drones and satellites.
Hadrians wall, The walls of Jericho, the great wall of China all vanity projects that were breached. It's medieval technology like the trebuchet and nobody thinks they are the first weapon of choice for 100's of years. Of course walling people out means you wall yourself in.
Glort the man is a liar, a womaniser, a cheat and a megalomaniac
Title: Re: Before it's all over.....
Post by: LowGear on December 27, 2018, 05:34:06 PM
glort, glort, glort,

Just accept you don't get it.  Just as surely as I don't understand, I mean I don't get his supporters.  Life has mysteries. 

How about that heat wave in the South.  Yup!  It's Trumps fault.

Cheers,
Title: Re: Before it's all over.....
Post by: basewindow on December 27, 2018, 10:52:23 PM
President Kennedy and Marilyn Monroe springs to mind. Any male born before 1990 would be classed as a womaniser now. The mainstream media hates Trump over here, not a day goes by when there isnt a Trump ridicule story on each TV channel and probably a dozen on the Left wing dominated ABC. Some ppl just cant handle that he actually got in and that he and the majority of others seem to have a different opinion to theirs. So they wage a war of character assassination dredging up crap from 20 or 30 years before, judging yesterdays standards by todays PC rubbish. You only have to watch a show over here on ABC  called Q&A to see what a PC fantasy land these fools live in, and want or demand the rest of us should live in as well. University educated, never held a real job in their lives and living off the welfare of the rest. Makes we want to reach into the TV and give them the well deserved belt around the head they need. Rant over. Gone bit off topic.  Merry Christmas all.
Title: Re: Before it's all over.....
Post by: guest23837 on December 28, 2018, 12:06:16 AM
President Kennedy and Marilyn Monroe springs to mind. Any male born before 1990 would be classed as a womaniser now. The mainstream media hates Trump over here, not a day goes by when there isnt a Trump ridicule story on each TV channel and probably a dozen on the Left wing dominated ABC. Some ppl just cant handle that he actually got in and that he and the majority of others seem to have a different opinion to theirs. So they wage a war of character assassination dredging up crap from 20 or 30 years before, judging yesterdays standards by todays PC rubbish. You only have to watch a show over here on ABC  called Q&A to see what a PC fantasy land these fools live in, and want or demand the rest of us should live in as well. University educated, never held a real job in their lives and living off the welfare of the rest. Makes we want to reach into the TV and give them the well deserved belt around the head they need. Rant over. Gone bit off topic.  Merry Christmas all.

Trump won the election on the college vote system NOT the popular or majority vote. 56.9% of the people eligible to vote actually voted so trump actually got 27% of the total votes available to registered voters. If there was an election today he would get less than 20%!
Do you think a rape, a robbery a murder or any crime can be overlooked because it happened 20 or 30 years ago?
Finally wanting to reach into a television to physically attach someone that actually has a fuckin brain says a lot about you
Title: Re: Before it's all over.....
Post by: dax021 on December 28, 2018, 04:49:02 AM
Someone got out of the wrong side of the bed this morning.  No one was speaking about rape or murder.
Title: Re: Before it's all over.....
Post by: dieselspanner on December 28, 2018, 07:14:08 AM
Hey Guys,

I ain't the moderator but I can see where this semi political line could end up. We all know why we value this site so please let it slide.

You can slag me for free, if it helps!!

Cheers
Stef
Title: Re: Before it's all over.....
Post by: basewindow on December 28, 2018, 11:58:42 AM
Dont agree with you Johndoh, but would fight for you to be able to air your views. Unfortunately over here some ppl only want your opinion as long as its the same as theirs and will do anything to stifle any debate. Anyway it would be a boring world if we all thought the same way. At least we have a few things in common. Old Machinery and diesel and petrol fumes. Wishing all a happy new year and may it rain Listers.
Title: Re: Before it's all over.....
Post by: guest23837 on December 28, 2018, 01:15:09 PM
I dislike all politicians with good reason. In my country we have murderers that oppose abortion, party leaders that get a free £50,000.00 holiday and "forget it", campaigns about "shoot to kill" policies against illegal armies, unemployed barmen with holiday homes, politicians wives giving public money and contracts to their toyboy and so on.
Jeremy Paxman of the BBC said that every time he interviews a politician his first thought is "why is this bastard lying to me"? I think thats a good basis for viewing politicians.
#
Happy new year to you too basewindow, my advice is believe nothing be cynical and if possible be self sufficient you'll get no help from any government if you need it.
Title: Re: Before it's all over.....
Post by: LowGear on December 28, 2018, 04:08:31 PM
I guess I still don't get it.

Political crap deleted.

What the Dickens was this thread about?


Title: Re: Before it's all over.....
Post by: guest23837 on December 28, 2018, 05:00:47 PM
That's the beauty of what politicians say lowgear it's all temporary throwaway stuff and quickly forgotten. The only political quote I remember was by Enoch Powell he said all political careers end in failure!
Title: Re: Before it's all over.....
Post by: basewindow on December 28, 2018, 09:31:19 PM
Well maybe Johndoh we agree on more than we both know. Wouldnt trust any Politician as far as I could kick them, or believe anything that comes out of their mouths. And we have the same issues over here with them rorting the system for personal and political gain, overseas junket holidays with the family etc.

Having worked in, lets say a semi 'Public Service' roll for thirty years, I know full well how statistics were manipulated for public consumption, and were manufactured by various means to the conclusion required. As they say, Lies, Damn Lies, and Statistics.

I guess what I was trying to say about Trump (And failed miserably) was more about the biased reporting or manipulation of the reporting, because of who he is and what he stands for and the double standards they have in that regard in pushing certain agendas. As my son would say he's a bit of a 'Tool' and probably brings alot of it on himself by his stupid 'tweets' and outlandish comments.
Most media here, both commercial or Government is so PC or stacked either way, that the 'truth' is almost impossible to ascertain.

An example is Climate Change. Now logic would suggest there is man made climate change (just look at the smog etc over cities) but such outlandish claims have been made, statistics manipulated and out right lies told, by both sides for political gain, that average joe just cant make an informed decision.
Guess we all get frustrated because they cant see the Forest fir the trees.

Thats why we are old grumpy men, who would rather talk to our machines, and seek solice in our man sheds, and the cathartic feel of bringing the past back to life. Certainly makes me feel better.
Title: Re: Before it's all over.....
Post by: oldgoat on December 29, 2018, 02:29:44 PM
Well the Insurance Industry believe in climate change, their actuary's have already adjusted premiums to suit. I just hope they haven't miscalculated the speed that it is happening otherwise after the next bushfire,flood( insert appropriate disaster here) the premiums will go crazy.
Title: Re: Before it's all over.....
Post by: basewindow on December 29, 2018, 09:13:33 PM
Yep Oldgoat, thats what I mean, everyone's jumping on the bandwagon, to make a profit or to push an agenda.
Title: Re: Before it's all over.....
Post by: guest23837 on December 29, 2018, 09:44:06 PM
It's 9.45 pm in Ireland and 11c it should be less than 5c
Title: Re: Before it's all over.....
Post by: basewindow on December 29, 2018, 10:55:12 PM
35 degrees, here i  Gosford today. Must be Global warming.  Nope, just summer.
Title: Re: Before it's all over.....
Post by: ajaffa1 on December 30, 2018, 09:09:44 AM
A very comfortable 32 degrees here today, night time temperatures around 17 degrees. I am not a believer in the government/business sponsored BS about global warming. The planet has been warming up since the last ice age, presumably it will start to cool down as we go into the next one (this has been going on since before mankind). My guess is that the same bunch of lame politicians will then try to blame me for Global Cooling and jack up my taxes again to combat it. Wonder if I will be able to claim back the money we paid to combat Global Warming?

Bob
Title: Re: Before it's all over.....
Post by: oldgoat on December 30, 2018, 01:37:13 PM
The biggest problem seems to be the rate at which it is warming it appears to be occuring over a period of hundreds of years rather than thousands. The ability of us to breed grain crops and other food sources to may be a bit of a problem. Many of the glaciers are a form of water storage. Most of them are in inaccesible places not conducive to building dams and we don't seem to have a solution for that at the moment. Probably the most dramatic has been the Muir glacier in Alaska where  more than 200 ft thick ice has retreated approximately 50 km. That is a lot of water that is no longer stored.
Title: Re: Before it's all over.....
Post by: basewindow on December 30, 2018, 09:47:29 PM
But is that a bad thing?  You could say that a lot of water has released for use, land released for use? Im no climate scientist but does it have to mean doom  and disaster? Some areas may become less appealing or less usefull, but other areas once uninhabitable will become habitable and useful. Humans are a very adaptable species, the climate has changed multiple times over the period humans have been on the planet.
Id be more worried about overpopulation which in essence is really causing the issues. But nobody wants to tackle that because its not PC. If you really want to talk about long term sustainability, then its something that will eventually need to be looked at.
Title: Re: Before it's all over.....
Post by: ajaffa1 on December 30, 2018, 11:29:52 PM
+1, Basewindow. We need to tackle over population, if we don`t nature will!

Bob
Title: Re: Before it's all over.....
Post by: guest23837 on December 30, 2018, 11:38:37 PM
I use "green" electricity. Yes it's a little more expensive and yes it comes through the same wires however it's generated with wind and by burning willow. Every person that uses green electricity means there is a little less oil or coal burnt. Thats how it is supposed to work. The people that are "going on" about climate change aren't big businesses and governments they currently don't give a stuff and only do token things to try to look good. It's ordinary people, people that want there to be a useable planet here for their children and grandchildren. It does matter a lot if the ice caps melt, most people now live in large urban centres ie towns and cities. These are usually located near large rivers or close to the oceans. That's where the most arable land is as well as well. Raise the oceans a foot (remember the planet has much more water than land) and we will be overrun with King Canute types fleeing to higher ground, ground which is less arable and has less useable water. The ground is already warmer this makes the moisture evaporate and fall as rain in the middle of the oceans at the same time it makes the soil less useful for growing stuff. We can't feed, or choose not to feed everyone on the planet now. Imagine the oceans rising displaces 1/7 of the planes population that's over a billion people.
Many of the immigrants trying to get into America are going there because for the third year in a row the rain didn't come and their crops failed. It's already started and we really have only a short time to fix things. If we don't we are condemning our descendants to a life of misery poverty and want. Their descendants are likely to be nuclear survivors moving from oasis to oasis on camels!
Title: Re: Before it's all over.....
Post by: ajaffa1 on December 31, 2018, 12:01:17 AM
I agree with you and admire your small contribution to the solution.

The trouble is that nearly every government on earth has racked up huge debt, the only way to service these debts is by increasing population and per capita consumption/expenditure.

Here in Australia the government has actually posted a budget surplus for the first time in decades. Their primary income comes from the mining and export of fossil fuels and metal ores. Can`t see the politicians voting to kill off that golden goose any time soon.

When fire, flood and famine become the norm they may start to pay attention.

Bob
Title: Re: Before it's all over.....
Post by: BruceM on December 31, 2018, 01:13:31 AM
The US military is planning on global breakdown of society as people starve from climate change.  You think lower middle class Americans are angry and irrational now from being squeezed dry, just wait.

The concern raised by serous scientists is that as Johdoh suggests, food and water supplies will be threatened and we can't move a billion people, and people get pretty angry and irrational when starving.  In the US we have been growing food and low value crops like short staple cotton on 2000 year old ground water tables that will be depleted soon enough.  The hominid primate is not capable of controlling his own population- and few realists think our present population is sustainable.

The climate scientists are concerned about unknown environmental tipping points that speed up the process.  Glacier ice melt rates are going much faster than predicted and thus they are calling for immediate action. 

The Petro corps. have spent a lot of money on disinformation campaigns to continue to maximize their profits per their charters, and they may have cost our great grandkids dearly. 

Somehow we have to find a way to stop with the wars, and turn our "democracies" into more than corporate funded puppets. I sure don't have a clue how that might happen.  Money seems to always find a way around.  I don't know how public funded elections have worked out elsewhere, but that might be a start.

Title: Re: Before it's all over.....
Post by: guest23837 on December 31, 2018, 09:18:27 AM
There is a really bad television show in the UK called the Jeremy Kyle show, women seem to watch it as people humiliate themselves with lie detector tests and DNA tests etc. My wife was talking about one show where a white married couple were on and the wife had given birth to a brown baby. The wife was insisting that the husband was the father saying he looked like the child and she wasn't cheating. Of course science in the form of a DNA test proved she wasn't being truthful, the husband was  in denial saying he was the father.
My point? The evidence was in front of the husband but he didn't want to believe his eyes and chose to believe the denials of reality from the wife. The family member that was saying "stop, this isn't right" was scorned and derided.
As a climate change analogy it's not great but that's what's happening. I'm betting that husband continued to be "daddy" continued to believe the wife continued to deny what he could see.
I know my last post was a bit doom and gloom but I do have hope for the future. I been reading about people in Ireland objecting to solar farms in Ireland one objection being there's no way to store the electricity. Why not treat solar power the way we are treating the planet and just use it as it's generated and wind down the power plants during periods when solar is generating even on a micro level it would help I believe. I rent this house the landlord has looked into solar panels for heating water but he's not interested in jumping through planning department hoops.. I can't legally install a wind turbine larger than a bicycle wheel without planning permission, permission I'm not likely to get. I am sure there is switching technology available that would make the power switching seamless. I also want a hydrogen powered car!

Happy new year gentlemen
Title: Re: Before it's all over.....
Post by: oldgoat on December 31, 2018, 11:06:58 AM
I've done my bit for overpopulation had my vasectomy forty years ago.
Title: Re: Before it's all over.....
Post by: LowGear on December 31, 2018, 04:44:50 PM
So many more believers than there was ten years ago.  No significant ice on the fish pond in forty years woke me up about 20 years ago.  I can remember watching my 200 pound father skating on it in 1951.

I think few people don't realize that sustainable power generation is the future.  Why does anyone continue to support unsustainable anything?  What part of unsustainable don't they get? 

When you reduce usable land by 10% and increase population by 10% how much have you really changed opportunities?  This century is going to be a wild and crazy ride.  Is Bangladesh the future of human existence?  Ocean front is now a property liability.  Countries already have two land mass measurements - Tide In vs Tide Out.

Just how crazy is it?  glort just left a positive hopeful post.  Yikes!  Yup, continental flooding is just around the corner.



Title: Re: Before it's all over.....
Post by: mikenash on December 31, 2018, 07:14:47 PM
Yeah, well, living on some small islands in the middle of a big ocean is always thought-provoking . . .

All the best for 2019, guys  :)
Title: Re: Before it's all over.....
Post by: BruceM on December 31, 2018, 07:26:12 PM
The weather extremes affect on farming and food prices is the big "oh shit", I suspect.  Food is right after air and water for essentials.

I'm interested in a year round passive solar greenhouse, but the summer months here require evaporative cooling, which isn't easy if you're EMF sensitive and need 26 feet from a 1/2 hp motor and small lift pump. Off grid adds to the cost and complexity as well.  A friend with a good passive solar design now growing in dirt (aquaponics for many years ) is only "storing" vegetables now- we've had too many dark cold days and the plants go dormant with soil temps go to low.  The combination of windy 100F+ single digit humidity spring and summer, and colder, darker winters we are now having is a real challenge for low energy greenhouse design.

Passive solar alone falls flat if your number of consecutive dark days gets bigger than your thermal mass and losses.  Well above freezing, growth stops and plants become susceptible to diseases. 

Most of what I've been able to find on greenhouse design is some pretty pathetic, non-engineered work with little or no real performance data.  Not much funding for real innovation, so far.


Title: Re: Before it's all over.....
Post by: basewindow on December 31, 2018, 10:39:16 PM
I've still got hope for the future, and I think we'll get there, we're a very adaptable species. It's more like we're in a transition phase at the moment, change comes slow, but inevitably comes. Just look at the price of a Solar panel now, 8 years ago I paid $400 for my first 120w panel, now the same thing, in fact I think its 140w, i can get for $70 delivered. Battery tech is coming along in leaps and bounds,  electric cars and becoming affordable and practical. Would be helpful if some bright spark could perfect cheap room temp fusion tho.
The youngr generation is pretty in touch with this stuff,  its what they worry about and I think they'll drive the change. We worried about nuclear war, and i think and hope we've overcome and put that behind us,  but Im still a little concerned about the Zombie Apocalypse lol.
Happy New year to all.
Maybe we should change the title of this thread, are we all miss interpreting it as the end of the world!
Title: Re: Before it's all over.....
Post by: BruceM on January 01, 2019, 07:21:47 AM
I'll bet there's plenty of rural land in Australia with no limits whatsoever on how much PV you can put on your property. Light up the outback, Glort.  Pulling the plug on the power co. where you are might also be an option.  Or getting involved in putting citizens on the power regulatory boards who aren't in the pocket of the power co.

In AZ, the biggest power co., APS, have insured themselves a good deal by openly buying campaigns for two APS puppet corporation commissioners.  They now credit at 12 cents a KWH (for the next 10 years), but bill you about double that for 3PM to 8PM.  A lot of ice storage cooling systems will be added in the next few years, to allow late day A/C running without the stiff price.  There's no limit on the grid tie wattage, yet. 


 






Title: Re: Before it's all over.....
Post by: old seagull man on January 01, 2019, 07:53:33 AM
I too am a victim of the 5k rule, and i get a miserly 11 cents for what i give back. If it is not a air-con day, i use about 17kwh a day. 35kwh if its hot, and every air-con is on but on a good summer day i can make 20kwh by midday and 12 in the afternoon, I live in a suburb with street trees, so one side of the house is shaded in the afternoon. But i could send 15kwh back on a good day, and its no like i dont get a bill, shore the kwh charges are tiny, but the supply charge and the metering charge and all the other crap charges, are way more than the power ever is.

So my inverter went bang. and a new one was provided but it more modern and more powerful than the old unit. (Read the model i have is no longer compliant with the current standard so even though i can buy one for $199, i cant, use it, but its exactly the same as the dead one. IT HAS TO BE COMPLIANT AT TIME OF INSTALLATION).

So have given up on the guys from Origin, my most useful and helpful energy supplier, the company that  In fact when the inverter was first setup there  installer screwed up and i was exporting all my excess power.
Not my fault, but i did get a bill for the excess, and a charge for exceeding the aloud grid export amount.

So if your like me consume it all your self, we had the booster for  hot water heater, connected to the inverter, they charge me 13 cent for the off peak electricity that i use , but give me 11 cents.

So the local sparkie dropped in today to leave his fathers seagull outboard for me to fix. and i was having a winge about it all. And told me he had done a job earlier this year and he guy had a bunch of panels he had bought of gumbay or Etree and and a second hand 5kw inverter, just plugged into a power point in the garage. DIY solar, Some homes in QLD have smart meters installed, but there not configured, for implementation later. mine wnt in 10 years ago.  So i wonder how many of these setups there are around the country, and how much power they are producing and sending to the grid? And what chaos and mayhem they are creating.


Title: Re: Before it's all over.....
Post by: ajaffa1 on January 01, 2019, 09:22:24 AM
Hi Guys, I think I have a cunning plan. I intend to export all of my solar power to the grid, I will set up a second solar array with an off grid inverter. this will run my home with the Lister CS as backup. I will be independent but still grid connected if I ever need to sell my house, hopefully I can work out how to export excess power generated at night by the CS burning WVO. There is just a chance that the electric company will end up having to pay me rather than the other way around.

Bob
Title: Re: Before it's all over.....
Post by: BruceM on January 01, 2019, 04:48:18 PM
I notice the GTI's are often reported to have a limited service life- especially the newer non-transformer types. 

IceEnergy.com and others with that stored energy A/C approach will be selling a lot of systems.  That will allow you to put your cooling power on PV.  Expensive now but will be less so as volume increases.

I notice that the biggest AZ power co., APS now has a super off peak rate of 3 cents a KWH.
This applies from Nov. to April, 10AM to 3 PM.  This rate is so low that all the higher elevation locations in the state with the need for heating might consider some sort of melted phase change material heat storage system.    This is likely an attempt to increase the winter baseline load for APS's  Palo Verde nuclear plant. 

All this also points out that super insulation is the way to go for the future, as it cuts the heating/cooling need by roughly 75%.

With APS rates varying from 3 cents to 24 cents/kwh already, the market for home battery storage and energy management systems will grow. 





Title: Re: Before it's all over.....
Post by: LowGear on January 01, 2019, 08:56:07 PM
My keyboard just ate the best posting I would have ever made.

Happy New Year to you all.
Title: Re: Before it's all over.....
Post by: BruceM on January 02, 2019, 12:40:07 AM
Not being able to touch it is't bad- your temperature must be just below 160F if you can touch it for 10 seconds.  If you touch it with a wet finger and it sizzles, that's getting hot.

We can imagine how much pressure the designers are to make these things small and cheap. Buyers only look at cost, rated watts capacity and ''efficiency''- as if the latter was somehow important.  Toroidal transformers for 5000w capacity would be quite heavy and large, and not cheap. 

I had a hell of a day.  My new linear pv charge controller has been working flawlessly, but it's a new rework of an old design so I didn't build a backup yet. Today at 11 the sun was out and my battery bank voltage was still 126v so I trudged out with a broom to sweep the snow off the panels.  We got 6-8 inches last night.  When I came back in, battery voltage was now 161!. When I opened the door to the battery bank I could smell fried electronics.  The PV controller was fried- current sense resistors cooked and exploded, oddly, transistors not, stuck ON so full charge current being applied.  I disconnected the large array, and covered part of the small array to get a small rate of charge the battery regulators alone could handle.  Then when getting ready to order parts, I found my computer was out,  which ended up being a cheap POS 12v, 1.5A wall wort (after a fair amount of pulling things apart and trouble shooting).  I had another I could pirate, so got it going, only to find that my custom rear projection focus wasn't working.  That ended up being the tiny gear motor that had failed.  So, after a long day, now I can work on my parts order.

I do have the old PV regulator, which I can modify to be compatible, but I'll have to stick to just my 875 watt array until I can rebuild the new board.  I had spare boards and some parts, but not enough.  An important lesson.

I'll think about adding some max current limiting on the new design.  It seems I've found the worst case-  full sun and fresh snow on upright panels, and 20F temperature, high noon.  The first time for my new additional 1500 watt array in addition too my old 875W.  Too much voltage drop. 
I may have to disconnect one of the panels in the 1500W string for cold weather.

Title: Re: Before it's all over.....
Post by: BruceM on January 02, 2019, 01:34:10 PM
I found the problem with my linear PV regulator.  The NPN darlington transistors I originally used had been discontinued so I found a similar part but didn't check the linear safe operating area chart close enough. They just can't take much current at high voltage drop that I'm getting in cold weather (<20F) with a snow sun reflector.

It's alarming that there are almost no large NPN power darlingtons being made any more.  MOSFETs are now being rated for linear operation, and could go into my design, but I liked the robustness of the NPN transitors.  The only application is automotive ignition switching- where that robustness is desired, and they are thus tweaking them for better switching performance and not for linear. 

Title: Re: Before it's all over.....
Post by: BruceM on January 02, 2019, 03:20:41 PM
Yep, after staring at a lot of datasheets, I'm switching to the Fairchild  FDA18N50 500v N-channel Mosfets in linear mode instead of NPN Darlingtons.  They have about 5x the linear current capability. At 100V drop across the transistor they can manage 2 amps until they cook.  My max current (16A) per transistor is only 2.2 amps at 0.55V drop.  They have relatively crappy on resistance (0.25 ohm) but that's fine for this application in linear mode with 7 in parallel.

I used Fairchild mosfets for my inverter project too- they have performance in slow, semi-linear transitions (not fully on or off) and good prices.

Things change pretty fast these days.