Search found 1453 matches

by E Ireland
Mar 12, 2019 6:30 am
Forum: Fluoride Reactor Design
Topic: Seaborg MSR: liquid moderator
Replies: 4
Views: 219

Re: Seaborg MSR: liquid moderator

So what hydroxide would that be?

Sodium hydroxide is relatively low melting?
7LiOH would be enormously expensive.

Perhaps a eutectic?
by E Ireland
Mar 12, 2019 5:15 am
Forum: General Discussion
Topic: Thermal Spectrum Advantages?
Replies: 3
Views: 97

Re: Thermal Spectrum Advantages?

Fast neutrons wreck most reactor materials quite quickly.
by E Ireland
Mar 06, 2019 10:23 am
Forum: United Kingdom
Topic: Sellafield power generation project (Moorside)
Replies: 28
Views: 3351

Re: Sellafield power generation project (Moorside)

I did a design exercise for my masters which I called EAGR ('Eager') Any open info on that? It wasn't very sophisticated, it was just a short outline study on the potential of doing three things to the AGR: 1) Using a prestressed cast iron pressure vessel that could be reopened as required, and wei...
by E Ireland
Mar 05, 2019 9:37 am
Forum: United Kingdom
Topic: Sellafield power generation project (Moorside)
Replies: 28
Views: 3351

Re: Sellafield power generation project (Moorside)

'If the newer designs are uneconomical, older AGR should be continued with.' The fact that Britain failed to export any AGRs would suggest that nobody outside the country found them competitive. If the Brits had built PWRs instead - as the French did at the same time, after abandoning their own gra...
by E Ireland
Jan 27, 2019 11:50 am
Forum: United Kingdom
Topic: Hitachi to build ABWRs in the UK
Replies: 102
Views: 21403

Re: Hitachi to build ABWRs in the UK

Well the Hitachi Chairman essentially said what everyone in the industry already knew. Nuclear is inherently a highly capital intensive, long term endeavour. The current private owned model is simply incapable of producing plants. This is why the only people getting anywhere are the state investor m...
by E Ireland
Jan 02, 2019 4:33 pm
Forum: Energy Issues and Technologies
Topic: Nuclear Ship Propulsion
Replies: 139
Views: 17108

Re: Nuclear Ship Propulsion

I think we might struggle to build enough marine reactors in time. Especially as official secrets means we will not be allowed to use US Naval designs. There's always Rolls Royce.. Submarine reactors are very expensive however, and the US Navy put a billion dollar pricetag on development of a new n...
by E Ireland
Dec 29, 2018 8:39 pm
Forum: United States
Topic: "Green New Deal"
Replies: 44
Views: 1116

Re: "Green New Deal"

Nancy Pelosi Announces Plans For A House "Climate Crisis" Committee After Flying Thousands Of Miles To A Hawaiian Resort It would be a lot easier to believe there was a climate crisis if the people who keep telling me that there was a climate crisis started acting like there was a climate crisis. T...
by E Ireland
Dec 28, 2018 7:15 am
Forum: Energy Issues and Technologies
Topic: Nuclear Ship Propulsion
Replies: 139
Views: 17108

Re: Nuclear Ship Propulsion

I think we might struggle to build enough marine reactors in time.
Especially as official secrets means we will not be allowed to use US Naval designs.
by E Ireland
Dec 23, 2018 8:26 pm
Forum: United Kingdom
Topic: UK geological disposal facility
Replies: 2
Views: 82

Re: UK geological disposal facility

It won't go anywhere.

The volunteerist idea doesn't really work in a country with such high population density, and the Government won't simply buy local acceptance like the Swedes effectively did.
by E Ireland
Nov 26, 2018 5:25 pm
Forum: Uranium and Thorium Supply
Topic: Why doesn't everybody use Thorium?
Replies: 3
Views: 306

Re: Why doesn't everybody use Thorium?

Sustaining a useful chain reaction in thorium in existing reactor types is rather difficult due to your zero inherent fissile content. Even a CANDU is only capable of a self sustaining thorium cycle with burnups on order of 6,000MWd/t Which is even less than normal fuel and would have mind numbing r...
by E Ireland
Nov 17, 2018 7:39 pm
Forum: Energy Issues and Technologies
Topic: MSc Dissertation
Replies: 0
Views: 377

MSc Dissertation

Now that my MSc in Nuclear Science and Technology has been finalised, I can show people my dissertation without the risk of triggering plaigarism detection software.

So find attached
"Methods for improving the neutron economy, and uranium utilisation of, heavy water reactors"
by E Ireland
Nov 04, 2018 2:54 pm
Forum: General Discussion
Topic: Turndown ratio
Replies: 9
Views: 1089

Re: Turndown ratio

Designing nuclear power plants to run at full load all the time with no or little ability to turn them down will only make sure that nuclear power is never a large part of the electricity generation capacity given the current favoritism shown to intermittent renewable sources. The problem is that t...
by E Ireland
Nov 03, 2018 10:02 am
Forum: Energy Issues and Technologies
Topic: Can wind and solar really make a difference in Europe?
Replies: 2
Views: 581

Re: Can wind and solar really make a difference in Europe?

The Severn Barrage is Tidal Power, not wave power.
by E Ireland
Nov 03, 2018 8:50 am
Forum: General Discussion
Topic: Turndown ratio
Replies: 9
Views: 1089

Re: Turndown ratio

If its an isobreeder, the turndown ratio is kind of irrelevant. You just go into a poison prevent style mode and dump steam to the condenser, or even switch on resistive heaters on the plant roof. The fuel cost is so low that anything else just seems pointless. With a PWR the fuel cost is somewhat s...
by E Ireland
Sep 24, 2018 4:45 pm
Forum: United States
Topic: Small Modular Reactors - smaller Emergency Planning Zones
Replies: 3
Views: 1299

Re: Small Modular Reactors - smaller Emergency Planning Zone

Given SMRs are only a factor of three or four smaller than normal plants, which should large passive reactors have huge planning zones?

The radioactive inventory is basically proportional to reactor power