a boyle
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@magicbastarder wrote:
something i’ve pondered a couple of times – how efficient is electrolysis of water, in terms of the energy achievable from using the end products?
i.e. is it feasible to use large windmills to electrolyse water, and then use the hydrogen as an energy source, with the oxygen as either the oxidising agent, or as a revenue source as a raw material for other processes?
if this was feasible, it would get over the reliability issues surrounding wind supply.The problem with hydrogen is that in a word its crap. To be of any use you need a lot. This mean compressing it into a canister. Unfortunately hydrogen takes up a lot of space so you have to hugely compress it to have enough of it. You end up wasting a huge amount of energy just in compression. It’s about 50 years of.
I am not trying to broadside the contributions here. But anything i have seen by any politcal party is just crap. There are very few options , if any.
The green diesel is nonsense ,we would have to cover 95% of the planet in rapeseed.
Ethenol (booze ) takes in more energy than it ever gives out so go figure.
So called cellulose method for ethenol are great , but decades away.Solar panels are overall hugely wastefull as they require a lot of energy to make them.
As my previous post alluded to , the future requires a choice , nuclear or phased and planned electricity cuts to accomodate the fact that the wind does blow all day !!!
@Limerick Guy wrote:
I think we should use nuclear power as a bridge from going away from the burning of fossil fuels and the use of renewble energy.
As the system operates now, renwable energy cannot progress past 30 % of requirements.Renewable can provide enough electricity for the whole country , but the grid cannot cope. The electricity grid is like a sea saw that has to be kep in balance at ALL times otherwise it shuts down. The current system works by have a whole series of power plants that produce different amounts of electricity. The control room for the grid literally spend all day juggling the power plants on and off. It is simply impossible to cope with the end user flicking on and off switches whenver he feels like it , AND at the same time having the power plants (windmills / wave/ etc) turn on and off when they feel like it.
As a result of this vital but not well known fact , as things stand nuclear will be part our grid permanently.
The only only way to get around this basic problem is if a village or town seperates from the grid and relies entirely on it’s own windmills or sun light. THIS would mean that cut outs would have to ocur from time to time.
But heavy industry will always require a big dirty plant.Anyone , i mean ANYONE who tells you different simply doesn’t know what they are talking about .
@Bill McH wrote:
In the absence of any indication of where more trains are going to come from, it remains questionable whether the interconnector should be built if it will be running so far short of its capacity.
Yes good points. i am with you some of the way.
I would say 2 things in reply
1. i would repeat again that the interconnector provides for so much more than just one half metro bit of line stuck there.
2. your queries regarding the tunnel are most apt. I am pretty sure that these are issue arising from others parts of the network. I would suggest that the problems with the other parts of the network are slight and could be rectified in time and that long term the interconnector allows for as much growth as dublin wants and needs.
Specifically on the northern line only the city bound track veers left towards the docklands. The outbounds line is a level crossing. There is space to rectify this and fully segrate in the future.
The suggested northern line / airport rail link was never considered as a fully segregated overpass junction , any figures of capacity on that line are not as high as they could be, not by half.
Reorganising the dart to and from howth would free up more space.creating a shuttle service between howth and the howth junction removes more trains crossing tracks.What i am trying to get at is that the layout allows for the system to be improved over time. There is only so much money in the kitty and we should try to get the most for our money. The interconnector doesn’t stop a metro being built when the numbers are there to justify it. With the highest number carried on the green line in one day at 90,000 and metro service being able to provide up to that number per hour , it will be some decades before any new tunnel in dublin is being used to it’s full potential.
But the interconnector improves ALL the lines, and joins up everything that has been built in the city , and eveyrthing that the dto would like us to build in the future.The metro should not be the next step.
Even the ministry for finance has scratched it’s head ; the current proposal won’t even begin to pay for itself till all the other luas lines (now dropped) are built. It is the horse before the cart.
Even if you are against the interconnector , 4/5 billion would build a lot of tram tracks , and dublin in a very low density city .
it all look fine on the planning application. The returns have all been demolished (it doesn’t say how old or new they were) and the internal layout includes ‘minor’ changes. I would assume (hope) this mean breaking a door through here and there , but basically keeping the interior whole .
Perhaps there is someone who works nearby and has a better idea. They do look wonderfull from the outside though, so hopefully the interior is nice also.
That’s great ! but what about the extension to the trinity plaza hotel ? Was it a keep the facade and gut the rest job ?
I don’t know. What i do know is that dublin is soooo busy in every way and all the time , that noone will do diddly squat till you ask them !!!
I’d imagine that the council’s inspectors are overstretched (like everyone else) , log onto the councils website , theres an email adress to which you can report illegal development . I know it took a week to get a confirmation of my complaint so good luck !
those redbricks look lovely , but have the interiors been kept or gutted ?
on south anne street a whole row of shops have been gutted. With respect to that development , i don’t know what the state of the interiors was, so i can’t say that on the whole it wasn’t justified.
But on pearse street i would hope that the hotel was going to use the original interiors as ‘deluxe’ rooms or some such. Does anyone no for definite ?
The draft airport development plan was released last week.
For those of you with broadband you can look at it here :
To sumarise the 2 terminal is to be built as an addon to the first. Any future third / fourth terminal is to be placed to the west. This completly at odds with the north south alignment of the metro. Frankly the development plan is a joke with the metro so aligned, or vice versa.
Adding a further point to thomond park’s earlier post , previously when the second terminal was put to tender ten parties expressed an interest. Among them was ryanair who estimated the build at 125 million. Now the dublin airport wants to spend 1200 million . WHATS GOING ON ? ?? i feel like i am taking carzy pills.
With this is mind it is crucial that everyone put a submission into the rpa , whatever you feelings.
My point of view is basically that of the platform11.org. there is already a north south heavy rail line . dublin now needs an east west rail line. The interconnector allow for so much more than a connection between swords and the city.
Specifically it allows for all the lines into dublin to increase the number of trains per hour , because in one single swoop all the congestion around connolly is gone. it allows for a dart(metro) service to run from greystones to dunboyne, and a metro to run from balbriggan/howth through to clondalkin.Thats right 1 tunnel makes 2 metro lines possible !!!! The good people of swords deserve some relief too though, and a luas is justified , but spending the whole kitty (4/5billion) on a half metro route (the carriages are half capacity / and the route runs through half the city) is just wanton waste. Furthermore the port tunnel is not NOT going be used anything near capacity. A very successful direct bus connection operates in the not so backward Boston, and would complement the luas just perfectly. With a bus lane on the northern quay between busaras and the point. A direct point to point link <13 minutes !! Ha. Remember Seamus Brennan said they were trying to decide between a direct like and having lots of stops along the way well we can have both !!
Stop the madness and put in a submission.
Please Please put in a submission info@rpa.ie
@CTR wrote:
Anyone have any updates on kebab shop and eurocycles fronts? I only came across this thread today and am going to complain to DCC too. Brazenly erecting this things without P.P. needs to be stamped out by the council… and quickly! 🙁
like my post says i reported the eurocycles shopfront , it is up to others here to do their bit . there is another ugly ‘temporary’ sign accross the road at 18/19 south william street , so perhaps someone could put look into that and report back here, unless of course this is just a talking shop !!!!
@Morlan wrote:
Thanks for those Graham. That oversized blight lurking behind the building is very depressing – saw it from the DART last week. How do the developers get away with building a floor higher than the protected structure? 😡
I have passed by it a few times and from the ground the rear building is not visible. That is probably why it was permitted.
Has the interior been finished appropriately , or is it just squared tiles on the ceilings with recessed lights?
i put in a notice with regard to the first shop pictured ( south william street ) perhaps other could take the time notify planning enforcement about the other shopfronts here listed.
It did look great , but the gallery was to replace the haypenny bridge. People disliked the bridge at the time ,as it was made of metal . A bit the spike , or the eiffel tower !
there is one more thing to keep in mind the higher a building is the more it is subjected to wind , cooling it down
In general an efficient design would be low lying , and have a big surface area so that the roof could capture as much sunlight. This also means there is less air to heat above each section of pipe in an underfloor heating system. Really low ceilings come in handy now .
The very best you could acheive would be a pancake house flat and circular . there you go happy !!!! 😉 😉
i don’t think it is totally ridiculous ,mind. Lots of buildings incorporate curved walls or windows, and look great. eco friendly houses are a great idea , but i would be of the view that there is no need to over engineer a solution just for the sake of it .
enclosed shopping centres are horrid. increasing the amount shops in the city is a laudable aim , but doesn’t really come under righting past wrongs.
Another thought restore broadstone, restore the 20 odd tram lines.
Reverse the doughnut effect of middle ‘class’ people moving further are further from the city.
I have given this a little more thought :
requiring less materials does seem to be dubious to me , as the dome would require lots of temporary support to build it. if it is a concrete pour then any “green” value to goes straight out the window. (concrete production creates more co2 than anything else ).
brenn88 you are right about the surface/volume argument. For the volume a dome is the most efficient . But a dome would have such a larger volume with respect to a bungalow. So notwithstanding that it would be more efficient, there would be so much more air to heat that overall i remain very very sceptical.
indeed the natural air flow stuff only works if you put nothing in your big dome!
re the shape and storms and so on . storms that can rip off roofes are very very rare. It might be a better design , i don’t know .
the heat being reflected back would sort of work. you would get the same effect by removing your attic ( the difference between a triangle shape and a dome would be slight.) of course then you lose the nice trapped air in your attic (trapped air in you duvet is what keeps you cosy ) so i am very very dubious of this claim.
THERE ARE SUCH SIMPLE ALTERNATIVES !!!! , ahem excuse the ‘shouting’. Thatch is fantastic, natural and doesn’t wreck the planet! ( our ancestors were poor , so eneficient roofing was not popular as you can imagine! ) painting your house white inside and out !
finnally while rounded aspects to a building can be attractive , i don’t think anybody would take you seriously as a human being if you lived in a dome outside the arctic. it would be like owning a bmw! (only joking ,don’t take offence ! )
Are you sure that is not a joke site ? i can see no reason why a dome would be any more efficient to a south facing house. Any church i have been in has always been cold , even with the heat on. A dome would have far more air to heat. And large air spaces are less efficient to heat due to one of the laws of entropy. As a result of being round less of the surface can face the sun at any one time. I could be wrong , but this look like an idea pulled out of an architect’s ….
I am reminded of beverly hills cop where axel folly goes crazy with a builder over a house shaped like a doughnut.
words like monolithic, synergy , and sustaining , generally make me assume it is nonsense.
@Morlan wrote:
ESB HQ anyone?
true true . there is so much to do in this fantasy world ! we also need to move joyce’s college back into the city. And that could cost a pretty penny! i would enjoy seeing students massing out side de taoiseach’s office chanting “give it back give it back” !
this is maybe not the best place to start a political discussion, but as it has started i can’t help but get involved.
There is a huge amount of opinion being spouted about this issue. I would suggest that overall the country/taxpayer wins through privatisation , even if it is only part privitisation.It might be a good idea to sell of bits of land here and there , but i would say that this is just more interfeering in the company.
The company has plenty of potential to become valuable but , this potential will only realistically realised in private hands. While we might not make a lot of money on selling it , at least we don’t lose money. Also the in the medium term it has to radically improve or go bust.And that is a lot easier to do if it is in private hands.
A huge amount of rose tinting has gone on about this. Bluntly aer lingus is a crap airline.
ryanair has more services in and out of ireland. They are more punctual than any airline in europe. They are cheaper on average than any airline in europe.They lose the fewest amount of bags out of all the airlines in europe.Ryanair has the youngest fleet in europe. Ryanair lost 16000 bags last year for 24 million passengers. Aerlingus lost 72000 for 8 million passengers. Ryanair employs 2200 and aerlingus 3000. go figureIreland has been poorly served by a state led national carrier. Aer lingus is undoubtedly doing much better by leaps and bounds but that is only because otherwise ryanair would have forced it into bankruptcy. ryanair has clearly shown the trade off between the state controlling strategic services and providing the very best services is heavily weighted in favour of private enterprise.
While i understand the rose tinting nostalgia for the old days , when air travel was a middle class only affair, irelands strategic interest is in having the most planes in and out of ireland. It doesn’t matter if there is a shamrock on the plane. EVER gone to paris because of air france ? no i didn’t think so. The perception is that yanks like coming to ireland on a shamrock plane . but that is nonsense : yanks like coming to ireland , and yanks like low fares.
I went to france in 1992 for 233 pounds return. this year i made the same trip for 120 euros (including the trip into and out of paris ) . SELL SELL SELL !
Sell it as fast as possible! sell dublin bus sell bus earinn. sell irish rail ( keep the rail network), sell all the power plant s (keep the transmission network ) sell all the hospitals ( and create a fund to pay for people who can’t pay for themselves) sell all the schools (likewise a fund for those who can’t afford to pay for themselves), and give the universities proper independance (political and financial ,through a graduate tax system) Governments waste more than the profit made by companies every time. SO sell it off , look after the poor and everyone is better off !
