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Glitch
by BobtheTrain - 18/07/25 05:47 PM
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Forums34
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Most Online1,046 Aug 24th, 2023
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Joined: Aug 2013
Posts: 15,794 Likes: 14
Formerly known as Aldermog Member of the Inner Circle
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Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 14 |
There's a fair amount of biogas already in the network, I am on a Green Gas tariff from Ecotricity. Not sure you could put hydrogen though the existing pipes though. There is testing underway now, with the aim of converting the UK gas networks to 100% hydrogen.... https://www.h21.greenThis will be an evolutionary process: hydrogen can be blended with natural gas up to, I understand, 20% without changing burners, jets, etc. An immediate 20% reduction in CO2. Trials are underway. https://www.northerngasnetworks.co....-uks-first-trials-on-public-gas-network/Converting to 100% requires changes to burners and jets, but those of us old enough probably remember conversion from town gas to "HighSpeed" natural gas. Central heating boilers vent their exhaust outside, there will be more steam, but that is OK. Gas cooking is another matter: again, those of us old enough will remember the level of condensation produced by town gas, pure H2 will produce a lot more. Condensation will be an issue for many. So probably better to force the conversion of gas cookers to electric. Hydrogen has almost twice the calorific value, as kw/kg, than natural gas. This will allow boilers to be more efficient.
Peter, 66, 2016 Porsche Boxster S No longer driving Tarka, the 2014 Plus 8...
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Joined: Oct 2019
Posts: 203
L - Learner Plates On
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L - Learner Plates On
Joined: Oct 2019
Posts: 203 |
A step in the right direction but I can’t see how hydrogen burning with natural gas can only produce water as an emission. Surely it is burning with air and not pure oxygen and so nitrous oxides etc will be produced. It’s different if used in a fuel cell.
Jays. Ex Morgan owner. 1967 MGB Roadster.,
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Joined: Aug 2013
Posts: 15,794 Likes: 14
Formerly known as Aldermog Member of the Inner Circle
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Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 14 |
A step in the right direction but I can’t see how hydrogen burning with natural gas can only produce water as an emission. Surely it is burning with air and not pure oxygen and so nitrous oxides etc will be produced. It’s different if used in a fuel cell. Yes, hydrogen will produce nitrous oxides when burnt in air, just as natural gas does. But the combustion is at atmospheric pressure, so oxides of nitrogen are formed at much lower levels than when burnt under pressure. One of the reasons that diesel engines produce so much NOx is that the compression ratio is high,
Peter, 66, 2016 Porsche Boxster S No longer driving Tarka, the 2014 Plus 8...
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Joined: Jul 2019
Posts: 4,607 Likes: 192
Part of the Furniture
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Part of the Furniture
Joined: Jul 2019
Posts: 4,607 Likes: 192 |
Interested in a German perspective on EV..? If so you might like to beam up vid https://www.youtube.com/watch?v=hcXjVxaKzv4
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Joined: Sep 2011
Posts: 14,723 Likes: 149
Member of the Inner Circle
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Member of the Inner Circle
Joined: Sep 2011
Posts: 14,723 Likes: 149 |
There's a fair amount of biogas already in the network, I am on a Green Gas tariff from Ecotricity. Not sure you could put hydrogen though the existing pipes though. There is testing underway now, with the aim of converting the UK gas networks to 100% hydrogen.... https://www.h21.greenThis will be an evolutionary process: hydrogen can be blended with natural gas up to, I understand, 20% without changing burners, jets, etc. An immediate 20% reduction in CO2. Trials are underway. https://www.northerngasnetworks.co....-uks-first-trials-on-public-gas-network/Converting to 100% requires changes to burners and jets, but those of us old enough probably remember conversion from town gas to "HighSpeed" natural gas. Central heating boilers vent their exhaust outside, there will be more steam, but that is OK. Gas cooking is another matter: again, those of us old enough will remember the level of condensation produced by town gas, pure H2 will produce a lot more. Condensation will be an issue for many. So probably better to force the conversion of gas cookers to electric. Hydrogen has almost twice the calorific value, as kw/kg, than natural gas. This will allow boilers to be more efficient. Well that will resolve the distribution problem for hydrogen fuel cells won't it. All that will be needed then is suitable compressors to bring it up to the pressure required. The only issue then will be that most likely H2 for burning will probably not be pure enough for use in fuel cells.
Peter
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Joined: Sep 2009
Posts: 7,342 Likes: 91
Talk Morgan Guru
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Talk Morgan Guru
Joined: Sep 2009
Posts: 7,342 Likes: 91 |
'14 4/4 graphite grey
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Joined: Aug 2013
Posts: 15,794 Likes: 14
Formerly known as Aldermog Member of the Inner Circle
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Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 14 |
Works for me... I want to drive one.
Peter, 66, 2016 Porsche Boxster S No longer driving Tarka, the 2014 Plus 8...
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Joined: Sep 2011
Posts: 14,723 Likes: 149
Member of the Inner Circle
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Member of the Inner Circle
Joined: Sep 2011
Posts: 14,723 Likes: 149 |
Last edited by Gambalunga; 21/02/20 03:32 PM.
Peter
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Joined: Sep 2009
Posts: 7,342 Likes: 91
Talk Morgan Guru
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Talk Morgan Guru
Joined: Sep 2009
Posts: 7,342 Likes: 91 |
'14 4/4 graphite grey
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Joined: Aug 2010
Posts: 363
Learner Plates Off!
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Learner Plates Off!
Joined: Aug 2010
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I can't remember whether it was in another thread on here or in a different forum altogether that I saw a link to an excellent EV travelogue. One guy from Maine is halfway round a loop across Canada from east to west (which he did in January), down the west coast of the US, across the deep south, and back up the eastern seaboard. In a Porsche Taycan plug-in electric. Apologies if it was posted here and this is old news... He managed to comfortably cover 600+ miles in a day across the Canadian prairies in the middle of winter, and up and down the Rockies between Calgary and Vancouver, relying mostly on the charging infrastructure set up by PetroCanada at gas stations along the Trans-Canada Highway. A bit of a challenge as he arrived in Calgary was sorted by the Porsche dealership there, despite the fact that the Taycan isn't yet available in Canada and most of their team hadn't seen one in the flesh. I read the whole lot the other evening, it's a fascinating warts-and-all look at long-distance touring from the perspective of an enthusiastic but realistic early-adopter. https://www.taycanforum.com/forum/t...es-in-6-weeks-cross-country-journal.879/
Doug 1985 4/4 4str, Jubilee Blue
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