Search found 4550 matches

by Punx0r
Jun 16 2019 12:37pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

And thus it was that Australia was relegated to a second world economy... If you're doubting criticism of Australia's eco credentials, it's often rated as the worst in the industrialised world. Everything from emissions to electric car uptake. Regarding renewable energy resources, I can only suggest...
by Punx0r
Jun 16 2019 5:07am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Australia's laggard attitude to renewable energy is likely explained by it being the world's largest exporter of natural gas and the second largest of coal. However, it's customers in Asia are going green, in particular Japan. Japan lacks the space or sunshine to produce sufficient renewable energy....
by Punx0r
Jun 13 2019 5:11am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Doing something useful with abandoned, flooded coal mines: geothermal heat for nearby homes: https://www.edie.net/news/8/Welsh-coal-mine-set-for-geothermal-transformation-following--9-4m-fund/ "The Coal Authority recently assessed there could be more than two million gigawatt hours of low-carbon hea...
by Punx0r
Jun 12 2019 3:19am
Forum: Alternative Energy
Topic: Build a 5m rotor diameter
Replies: 11
Views: 310

Re: Build a 5m rotor diameter

The hub motor is a huge electric motor, the power is low because the RPM is very low, but I think nothing prevents the engine from spinning much faster than it does on a bike. Unfortunately most hubmotors are built to spin slowly. They have high pole counts and thick laminations which mean core los...
by Punx0r
Jun 08 2019 5:02am
Forum: Battery Technology
Topic: AliExpress battery pack unboxing
Replies: 126
Views: 5270

Re: AliExpress battery pack unboxing

Awesome project 8) That swing arm is quite something!
by Punx0r
Jun 07 2019 8:42am
Forum: General Discussion
Topic: EMI/RFI Dangerous?
Replies: 11
Views: 258

Re: EMI/RFI Dangerous?

I don't think the orange EV cable is shielded? Bits of an EV power train might kick out some serious low frequency electrico-magentic noise that might mess up other electrical equipment but us bags of biology are pretty darn immune to it. Even something like a ship's radar which emits around 50kW of...
by Punx0r
Jun 05 2019 7:04pm
Forum: General Discussion
Topic: EMI/RFI Dangerous?
Replies: 11
Views: 258

Re: EMI/RFI Dangerous?

Unless you have a pacemaker, not at all :wink:
by Punx0r
Jun 04 2019 10:25am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

In an earlier post you said the problem was with the steam recovery turbine, but above you say the problem is metal at 3000°F, which would be the combustion turbine. Which is it? Your arguments are predicated on designs, materials and manufacturing techniques not ever improving. How much credibility...
by Punx0r
Jun 04 2019 4:07am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

"you'll never have a turbine that can start/stop rapidly several times a day!" "You'll never reliably get 1HP/cubic inch from a piston engine!" "You'll never replace the horse!" "Man cannot physically survive travelling at 100mph!" "You'll bever be able to fly one of those contraptions across the at...
by Punx0r
Jun 04 2019 3:48am
Forum: EV Business World
Topic: Tesla Model 3
Replies: 935
Views: 55136

Re: Tesla Model 3

Buildings get rewired periodically anyway so including outlets for EV charging doesn't have to be a huge deal. Upgrades to incoming feed and substations is a bigger deal but not insurmountable. It's not like ever building and street needs upgrading over night. We're talking about a gradual adoption ...
by Punx0r
Jun 03 2019 10:39am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

:lol: ..The ‘Green” agenda is very heavily political..far left ! What you mean is: in the recent Australian election it was. I don't know if you realise this but politicians are not always scrupulously honest. Sometimes they will even pander to whatever voters want to hear in order to secure more v...
by Punx0r
Jun 03 2019 10:30am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Gas PEAKERS are run when needed. No over-supply, obviously :roll:
by Punx0r
May 30 2019 3:36am
Forum: E-Vehicles General Discussion
Topic: Tesla expects global shortage of electric vehicle battery minerals
Replies: 25
Views: 696

Re: Tesla expects global shortage of electric vehicle battery minerals

Due to demand out-stripping supply, the price of natural rubber increased by 1000% in a decade and was only halted by the 2008 financial crash. The bulk of the world's rubber production is under threat of a collapse by an untreatable infectious blight to which the trees have no resistance. Only rigo...
by Punx0r
May 28 2019 5:23pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Environmentalist won't allow Ithaca, NY to use Cayuga lake for geo district heating and cooling beyond a 2C discharge temp even though the heating and cooling degree days could be programmed to be seasonally equal (if heat is kept at a sustainable lowish but servivable level).The overall lake temp ...
by Punx0r
May 28 2019 4:59am
Forum: EV Business World
Topic: Tesla Model 3
Replies: 935
Views: 55136

Re: Tesla Model 3

That would require true artifical intelligence in that it would have to be able to infer what others should know i.e. a theory of mind
by Punx0r
May 28 2019 2:02am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Passive house and/or ground source heat pump
by Punx0r
May 27 2019 6:27pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Why are you repeating what I said when I corrected you above? You said Britain's forrests were cleared in 1800 for heating fuel in an attempt to prove wood cannot be used for heating.
by Punx0r
May 27 2019 5:36pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

The entire UK and large parts of the upstate areas of the USA Eastern seaboard were almost completely denuded of forests for heat in 1800 This isn't true. Britain was covered in forest after the last ice age around 10,000 years ago, but clearance to create farmland was started in the Bronze age, 50...
by Punx0r
May 27 2019 2:20pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

It's not good for local air pollution but it is carbon neutral if harvested correctly. It's certainly not release fossil carbon into the atmosphere. But OK, so you don't like it, so increase the other renewable/low-carbon mix by 50% and eliminate it. It's not hard - Sweden has hardly bankrupted itse...
by Punx0r
May 27 2019 2:14pm
Forum: EV Business World
Topic: Tesla Model 3
Replies: 935
Views: 55136

Re: Tesla Model 3

It will be a fair while before a self-driving car can out-compete an expert human driving operating at the top of their game, but that's not the point. The point of the AI is to be, on average, better than an average human driver on any given day. Considering how many accidents occur due to people s...
by Punx0r
May 27 2019 1:29pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

sendler2112 wrote:
May 27 2019 10:21am

Image
Cool. So ~30% of total primary engine is renewable. Add in nuclear for low-carbon and that jumps to over 60%. And that's 10 years out of date. Good for you, Sweden.
by Punx0r
May 27 2019 9:58am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

USA has a per capita CO2 emission of 15.7t per year. Sweden has a per capita emission of 5.1t per year. Sweden is a ighly industrialised Country with no trade deficit (vs. USA) We keep being told it's impossible to live in the Northern latitudes without burning huge amounts of fossil fuel for heati...
by Punx0r
May 26 2019 6:35pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

sendler2112 wrote:
May 26 2019 5:04pm
Solar panels are completely covered in falling snow and ice for days at a time where I live
Maybe you should live in Australia instead?
by Punx0r
May 26 2019 1:24pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

It looks like carbon-free alternatives for aluminium smelting electrodes are already being developed:

https://www.thechemicalengineer.com/new ... emissions/
by Punx0r
May 26 2019 1:13pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 4207
Views: 155834

Re: Wind and Solar vs Coal, Gasoline, Nuclear

furcifer wrote:
May 26 2019 10:40am
I'm not sure if you're trolling
His posts might seem like trolling to the point of parody but as far as anyone has been able to determine over the years he is completely serious. I'd suggest it's simply the Dunning Kruger effect in full force.