|
Post by GerryP on Feb 12, 2020 7:54:46 GMT 10
Sorry mate, but I absolutely refuse to watch anything that idiot puts up!
I have no idea whether he's right or wrong, but it will be full of sensationalist crap!
|
|
brickus
Seasoned veteran
Posts: 345
|
Post by brickus on Feb 12, 2020 8:10:16 GMT 10
Just coz he hates Fords?
|
|
|
Post by GerryP on Feb 12, 2020 8:33:54 GMT 10
Your honour, I rest my case.
|
|
KeithB
Seasoned veteran
Posts: 360
Tow/Motorhome: 2008 200 Series
Caravan: Off Road Glamper
|
Post by KeithB on Feb 12, 2020 8:52:17 GMT 10
It might be worthwhile to add another reference to Collyn's list. That's a recent book by Ross Garnaut called "Superpower". Ross Garnaut is Professorial Research Fellow in Economics at the University of Melbourne. In 2008, he produced the Garnaut Climate Change Review for the Australian government. Incidentally, in this 2008 report he stated that bushfire seasons would become longer and more intense, which would become evident by about 2020. He got that spot on.
"Superpower" makes a case for a hydrogen economy in the post carbon world from 2050 which could bring amazing economic opportunities for Australia. He says that we can start quite soon, once a suitable regulatory framework is in place. Rather than export hydrogen, where half its energy is lost in compression, he says that we could use the hydrogen to process the minerals here that we currently export at a substantial cost advantage over the rest of the world. Of course it would require major investment in new solar and wind farms and other plant and equipment. But these investments would be well justified by the rewards. The intermittent nature of renewables would not pose a problem. Australia, with its vast solar, wind and land resources, Garnaut says could become the metals and hydrogen superpower of the world.
This book has a lot of graphs, facts and figures and can be heavy going in places. But for anyone who has more questions than answers, it might be $19.90 well spent
Keith
|
|
KeithB
Seasoned veteran
Posts: 360
Tow/Motorhome: 2008 200 Series
Caravan: Off Road Glamper
|
Post by KeithB on Feb 12, 2020 10:56:07 GMT 10
Annoying though John Codogan's presentations are, this one made sense. But he starts by saying that the conventional method of making hydrogen is to crack methane into hydrogen, carbon dioxide and water, which of course makes no sense. It's only at the end of the video, if you persevered with it, that he mentions that fuel cells make vastly more sense than trying to burn hydrogen in an internal combustion engine. Then he belatedly mentions that you can get green hydrogen by electrolysing water using power from a solar array. The bottom line of the video is that hydrogen from green electricity makes sense in electric vehicles with fuel cells. But hydrogen from any source has nothing to offer conventional engines. There, I've just saved 38 minutes of your life. Keith
|
|
|
Post by collyn on Feb 12, 2020 11:28:26 GMT 10
It is odds -on that hydrogen-power vehicles will use fuel-cells that can readily be obtained by electrolysing water via a solar array. They may also have hydrogen 'fuel tanks'. Many heavy truck makers are already working in this area. www.scania.com/group/en/hydrogen-a-fuel-of-the-future/Collyn
|
|
brickus
Seasoned veteran
Posts: 345
|
Post by brickus on Feb 12, 2020 11:30:24 GMT 10
.......at what cost?
|
|
KeithB
Seasoned veteran
Posts: 360
Tow/Motorhome: 2008 200 Series
Caravan: Off Road Glamper
|
Post by KeithB on Feb 12, 2020 16:11:29 GMT 10
brickus, why not do a bit of research for yourself? You might even enjoy it. You can find Ross Garnaut's book here: SuperpowerI found it three bucks cheaper this morning but can't remember where. You can get a Kindle version for about half that price. This book will answer most of your questions and plenty that you maybe haven't thought of. You might also like to jump onto ABC Iview and look up today's Press Club address by Australia's Chief Scientist, Alan Finkel. He said that he is "technology neutral" but sees a huge future for hydrogen in transport, heavy industry and power generation. He also said that we can't rely on one technology alone, with renewables, batteries, pumped hydro and natural gas also having important roles to play. It is being repeated early sunday morning on the ABC news channel. Everyone has an opinion. But an informed opinion is so much more valuable. Keith
|
|
|
Post by collyn on Feb 12, 2020 16:20:04 GMT 10
If you can't answer simple questions, don't expect people to believe you. There is a huge cost in manufacture and I suppose in this day and age it's done in the conventional way. But if you wish to deflect the answer, that's up to you. It must surely be obvious that only the truck maker can answer that question, but many other truck makers too are looking seriously at hydrogen. Re the Cadogan rave - he is talking about running existing internal combustion engines from hydrogen (and only the very end mentions fuel cells). It is certainly possible to run a petrol engine from hydrogen - with next to no mods (but its pointless). Hydrogen was a key part of the BeIke Peterson debacle in the 1970s when his govt financially backed a car claimed to 'run on water' . In that era I was running my Electronics Today International magazine - and my staff and I checked out the car. It ran on hydrogen produced via a huge battery bank hidden under a water tank in its trailer! Backed by Kerry Packer I published the story - and I copped a direct rave and threats of defamation from Qld premier Belke Peterson (that we ignored). But that was the end of that car - and a few months later Belke P.- who resigned and moved to Tasmania. Collyn
|
|
|
Post by jr on Feb 12, 2020 17:31:06 GMT 10
Hi Collyn, It’s Stating to sound like another forum! Just to let you no I enjoy reading your posts.
Keep up the good work. JR
|
|
|
Post by collyn on Feb 13, 2020 8:15:07 GMT 10
jr
A quote from page 10 of today's Sydney Morning Herald: 'Chief Scientist Alan Finkel is backing the Prime Minister's gas-filled vision for an energy transformation to lower emissions arguing Australia should not invest in nuclear power but focus on emerging hydrogen technology.'
Just why brickus assumes I have access to Scania's finances defies any reasonable answer. My point is simply that they are looking hard at hydrogen power. So too are Cummins and many others.
Collyn
|
|
KeithB
Seasoned veteran
Posts: 360
Tow/Motorhome: 2008 200 Series
Caravan: Off Road Glamper
|
Post by KeithB on Feb 13, 2020 9:20:35 GMT 10
Alan Finkle said in his Press Club presentation that, some years ago, he had been very wrong about one thing. He said he had no idea that the prices of PV panels and batteries would come down so far so quickly. I'd expect the cost of hydrogen to follow suit. He also said that Chinese industry saw a great future in supplying the world with the necessary electrolysis equipment to make the stuff. In fact the Chinese have said that they will buy as much hydrogen as we can send them if the price is right. Keith
|
|
brickus
Seasoned veteran
Posts: 345
|
Post by brickus on Feb 13, 2020 9:58:43 GMT 10
I am not alone in my questioning. This post will probably be deleted by admin because it might make some people squirm is perhaps perceived to be off topic but I think it shows that we should always question everything. Those that think they are 100% right need to open their eyes and ears. Let's not go down some road to hell because of flawed ideas.
The link in this post has been deleted because it is all about climate change. Please consider this previous warning: One post removed. This is not the soapbox. This is the technical board. This particular topic is hydrogen. Please endeavour to stay on topic and discuss technical aspects.
A second post removed for the same reason was by member Collyn.
|
|
KeithB
Seasoned veteran
Posts: 360
Tow/Motorhome: 2008 200 Series
Caravan: Off Road Glamper
|
Post by KeithB on Feb 13, 2020 11:08:24 GMT 10
brickus said: "I ask simple questions which are NOT PERSONAL, just an enquiring mind that does not just accept everything spewed up in front of me"
Instead of asking questions here, why not do some research yourself? That's what folks with "enquiring minds" tend to do. I cited two references on the previous page and I once again commend them to you.
Keith
|
|
|
Post by collyn on Feb 14, 2020 8:25:11 GMT 10
|
|