[Strawbale] Re: Strawbale Digest, Vol 4, Issue 11
avantgarden at wxs...
avantgarden at wxs...
Thu Jan 19 13:42:37 CET 2006
Air source heat pump.
Barbara is right about the high installation costs of such a system.
25.000 Euro including the wall/ stucco heating system ( tubes) were our
costs.
Certainly not low cost and therefore not my piece of cake, really. But
solar design was not possible and money not the problem.
My favorite, a brick stove, wasnt maintenancefree enough, as a matter of
fact it isnt.
A ground source heat pump or a ground water source heat pump, quite
common these days in Germany were not possibly due to the massive rock
the house is standing on.
I also dislike the idea of sucking the heat out of the lithosspere of
Gaja,(maybe thats naiv), while the athmosphere is becoming warm enough
to sucsessfully pumping warmth out of it even in the atlantic influenced
part of Germany and even in winter.
In combination with low energy house design ( in this case strawbale) it
obviously works well.
I bet a smaller house ( not like the 150 m2 I mentioned) in a milder
winter climate will need much less than the mentioned roughly 1 KW per
hour ( 25 KW per day at 23 C° difference inside outside temperature) and
a windmill solution might be in reach.
That brings a design back to my mind I saw long ago in the early pioneer
days of windenergy.
It was a kinetic heat processor, a windmill stirring up water in a
barrel, the fast movement of the water molecules against each other, you
could say friction, created heat. A simpel, purely mecanical, short way
solution, but I have no clue about effectiveness and how you would apply it.
It could work well with a wall/plaster heating system, because that runs
on temperatures as low as 25 C°.
Cheers, Harald
----- Oorspronkelijk bericht -----
Van: strawbale-request at amper.ped.muni.cz
Datum: donderdag, januari 19, 2006 12:00 pm
Onderwerp: Strawbale Digest, Vol 4, Issue 11
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> Today's Topics:
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> 1. Re: Re: Strawbale Digest, Vol 4, Issue 9 (Simon Blackbourn)
> 2. Re: Re: Strawbale Digest, Vol 4, Issue 9
> (Rob Gort, Bouwcarrousel BV)
> 3. Re: Re: Strawbale Digest, Vol 4, Issue 9 (Mark Bigland-
> Pritchard)
>
> --------------------------------------------------------------------
> --
>
> Message: 1
> Date: Wed, 18 Jan 2006 12:26:41 +0000
> From: Simon Blackbourn <piemanek at gmail.com>
> Subject: Re: [Strawbale] Re: Strawbale Digest, Vol 4, Issue 9
> To: European strawbale building discussions
> <strawbale at amper.ped.muni.cz>
> Message-ID: <65b196650601180426g4fda5a4k at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi Harald
>
> I'm very interested in the heating system you mention, but the
> potentialproject is a very low budget one - so can you tell me if
> this was an
> expensive and/or complex system to install?
>
> And do you think it could be powered by a small windmill? The house
> will be
> in a very windy location - the extreme south west tip of Ireland!
>
> Best Wishes
> Simon
>
>
> On 18/01/06, avantgarden at wxs.nl <avantgarden at wxs.nl> wrote:
> >
> > ..... the remarkable thing about is the heating system.
> > The house is standing in a rather shady situation, sad enough, solar
> > systems cannot be applied for heating. Instead electricity is
> used to
> > extract warmth from the outside air and sending this warmth via
> water> through pipes. Those heat up the loam stucco inside the
> house. Who knows
> > the english term for Luftwärmepumpe, I guess its not
> airwarmthpump;-)
> > The bad thing about it is, that it needs electricity for this
> process.> The good news is: It needs very little maintanance and
> consumes little
> > electricity. Last week I noticed a weekly average of 25 KW per day
> > keeping the house temperature at 20 C° whith an average outside
> > temperature of -3 C°.....
> >
> -------------- next part --------------
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> ------------------------------
>
> Message: 2
> Date: Wed, 18 Jan 2006 13:30:33 +0100
> From: "Rob Gort, Bouwcarrousel BV" <r.gort at bouwcarrousel.nl>
> Subject: Re: [Strawbale] Re: Strawbale Digest, Vol 4, Issue 9
> To: "Michel Post" <info at purplex.nl>, "European strawbale building
> discussions" <strawbale at amper.ped.muni.cz>
> Message-ID: <000f01c61c36$78051ad0$0100a8c0 at DELL44002003>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hoi Michel
>
> goede reactie, goed op ingespeeld, zet de werkgroep maar op de kaart!
>
> Groet
> Rob
>
>
>
>
> ----- Original Message -----
> From: "Michel Post" <info at purplex.nl>
> To: <avantgarden at wxs.nl>; "European strawbale building discussions"
> <strawbale at amper.ped.muni.cz>
> Sent: Tuesday, January 17, 2006 8:24 PM
> Subject: Re: [Strawbale] Re: Strawbale Digest, Vol 4, Issue 9
>
>
> > Beste Harold Wedig,
> >
> > Wat leuk om te horen van een strobalen bouwer uit Nederland.
> > Alhoewel ik je niet ken, zijn er vast wel mensen uit onze
> Projectgroep> Strobouw Stichting VIBA Expo die jou wel kennen.
> > Waar heb je precies een strobouw project neergezet??? Is het
> mogelijk om
> > hier documentatie van te krijgen, eventueel een excursie naar toe te
> > organiseren???
> > Het is jammer dat je gisteren niet bij onze bijeenkomst was, want
> het is
> > altijd leuk om te weten welke strobouw projecten er spelen...
> zeker omdat
> we
> > dit centraal willen vastleggen.
> >
> > Ik hoop dat je een reactie wilt geven en wens je veel succes met het
> vinden
> > van informatie over bouwen met stro in Italie. Bij ons in de
> projectgroep> zit een meisje dat in Italie heeft meegeholpen met
> het bouwen van een
> > strobalen huis... Misschien dat zij wat informatie voor je heeft.
> >
> > Met vriendelijke groet,
> >
> > Michel Post
> > Secretaris Projectgroep Strobouw Stichting VIBA Expo
> >
> > PurpleX Architecten
> > Pauwenkamp 45
> > 3607 GC Maarssen
> > Tel. +31 (0)346 551173
> > info at purplex.nl
> > www.PurpleX.nl
> >
> >
> > ____________________________________________________
> > European strawbale building discussion list
> >
> > Send all messages to:
> > Strawbale at amper.ped.muni.cz
> >
> > Archives, subscription options, etc:
> > http://amper.ped.muni.cz/mailman/listinfo/strawbale
> > ____________________________________________________
> >
> >
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 18 Jan 2006 08:57:38 -0600
> From: Mark Bigland-Pritchard <mark at lowenergydesign.com>
> Subject: Re: [Strawbale] Re: Strawbale Digest, Vol 4, Issue 9
> To: European strawbale building discussions
> <strawbale at amper.ped.muni.cz>
> Message-ID: <43CE5762.7060305 at lowenergydesign.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Sounds like an air source heat pump - in terms of carbon emissions,
> whether this is a good idea depends on the source of your
> electricity
> (bad idea if from fossil fuels, potentially a good idea if from
> renewables).Here in Canada, ground source heat pumps - more
> reliable and efficient
> than air source, but more expensive to install - are becoming quite
> trendy. On both sides of the Atlantic (in the English-speaking
> bits)
> they are, confusingly, marketed as geothermal heat pumps (a misuse
> of
> the term in my professional opinion...). The same caution applies
> for
> these as for air source re carbon emissions, but the British
> electrical
> generation mix (and I imagine the Irish mix isn't that much
> different
> now) is now such that they perform better than condensing natural
> gas
> boilers in terms of emissions per kilowatt output.
> If you were to send me some info on the building design and heating
> (+
> electrical) requirements, Simon, I could calculate for you the
> approximate size of wind turbine you would need. (But be warned:
> you
> might be surprised how big it would need to be. You might want to
> think
> about ways of minimising heat consumption first.)
> atb,
> Mark
> Borden, Saskatchewan
>
>
> Simon Blackbourn wrote:
>
> > Hi Harald
> >
> > I'm very interested in the heating system you mention, but the
> > potential project is a very low budget one - so can you tell me
> if
> > this was an expensive and/or complex system to install?
> >
> > And do you think it could be powered by a small windmill? The
> house
> > will be in a very windy location - the extreme south west tip of
> Ireland!>
> > Best Wishes
> > Simon
> >
> >
> > On 18/01/06, *avantgarden at wxs.nl <mailto:avantgarden at wxs.nl>*
> > <avantgarden at wxs.nl <mailto:avantgarden at wxs.nl>> wrote:
> >
> > ..... the remarkable thing about is the heating system.
> > The house is standing in a rather shady situation, sad
> enough, solar
> > systems cannot be applied for heating. Instead electricity is
> used to
> > extract warmth from the outside air and sending this warmth
> via water
> > through pipes. Those heat up the loam stucco inside the
> house. Who
> > knows
> > the english term for Luftwärmepumpe, I guess its not
> airwarmthpump;-)
> > The bad thing about it is, that it needs electricity for this
> process.> The good news is: It needs very little maintanance
> and consumes
> > little
> > electricity. Last week I noticed a weekly average of 25 KW
> per day
> > keeping the house temperature at 20 C° whith an average outside
> > temperature of -3 C°.....
> >
> >
> >-------------------------------------------------------------------
> -----
> >
> >____________________________________________________
> > European strawbale building discussion list
> >
> >Send all messages to:
> >Strawbale at amper.ped.muni.cz
> >
> >Archives, subscription options, etc:
> >http://amper.ped.muni.cz/mailman/listinfo/strawbale
> >____________________________________________________
> >
> >
> >
> >
>
>
>
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> End of Strawbale Digest, Vol 4, Issue 11
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