On 19/05/2021 13:20, Fredxx wrote:
On 18/05/2021 11:36, Clive Arthur wrote:
On 18/05/2021 09:45, Martin Brown wrote:
On 18/05/2021 09:37, Tricky Dicky wrote:
On Tuesday, May 18, 2021 at 9:31:34 AM UTC+1, Tim+ wrote:
In the light of plans to stop new gas or oil boilers being fitted
after
2025 how many folk are considering buying a €śspare€ť boiler? ;-)
I must admit the thought has crossed my mind€¦
https://www.bbc.co.uk/news/science-environment-57149059.
Im assuming that only professional installs can be banned.
A non-professional gas installation voids your household insurance.
There was a spectacular one went bang round here about a decade ago.
The burnt out remains of the house sat unloved for years afterwards.
Boilers that can be converted to using hydrogen are to be exempt.
Persuading hydrogen to stay inside the existing gas distribution
pipes is going to be interesting (Chinese usage).
Maybe use Ammonia.Â* Easy leak detection.
Currently the production of ammonia is very energy intensive.
https://ammoniaindustry.com/ammonia-...ghg-emissions/
"Ammonia production causes 1% of total global GHG emissions"
and
"North American producers emit, on average, 2.129 tons CO2 per ton NH3
produced. North American producers emit more CO2 per ton ammonia than
most but, on the other hand, Chinese producers emit, on average, 4.429
tons CO2 per ton NH3 produced. Again, this data relates to 2010."
I really can't see it happening as a serious fuel.
That's usually because they use the same steam reformation process that
is typically used to produce Hydrogen from natural gas. That is a fairly
cheap and moderately energy intensive, but also also produces lots of CO2.
An alternative is to use electrolysis to to split sea water into H and
O2, and then produce the ammonia from that "green" hydrogen. However
cost wise this is usually far higher because it uses about 8 times the
energy just to generate the hydrogen.
However the argument goes that if you have some non dispatchable
intermittent generation capacity (i.e. wind. / solar etc) then that
could be a good way of utilising that "difficult to use" energy source
to accumulate a liquid fuel stock that can be stored and transported
relatively easily.
Countries like Iceland already use surplus hydroelectric energy to
produce ammonia for fertiliser production using this method.
--
Cheers,
John.
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