Heat pumps , can they store the summer heat?

[hab...@anony.net]

Is it possible using solar panels to store the summer heat in
underground water tanks or water sources and use that for heating in
the winter ?
How big a water tank would one need so that one would not need
air conditioning during the summer?

[ji...@specsol.spam.sux.com]

In sci.physics hab...@anony.net wrote:
> Is it possible using solar panels to store the summer heat in
> underground water tanks or water sources and use that for heating in
> the winter ?

It is possible but not very practical.

> How big a water tank would one need so that one would not need
> air conditioning during the summer?

Enormously huge otherwise the heat pump stops working.

You are still an idiot.


--
Jim Pennino

[benj]

About the size of lake Erie! Which is why my mother doesn't have air
conditioning.

[hab...@anony.net]

Ok why didnt anyone think of this before?
Why not pump heat from the building into an underground pool during
the day and back up to heat the house or pump it to the atmosphere at
night?
Solar panels could provide the small amount of energy needed
for this 'fridge' . In India the temp is 45C or 110 F and the people
simply cant afford electricity for air conditioning

[Lord Androcles, Zeroth Earl of Medway]

wrote in message news:519bfe86....@news.giganews.com...

Ok why didnt anyone think of this before?
Why not pump heat from the building into an underground pool during
the day and back up to heat the house or pump it to the atmosphere at
night?

=======================================================
Underground pipes ARE used. Capital cost of laying them in the
ground is the main obstacle, especially for blocks of flats in cities
where the ground is built on extensively.

Solar panels could provide the small amount of energy needed
for this 'fridge' . In India the temp is 45C or 110 F and the people
simply cant afford electricity for air conditioning

======================================================
India isn't Europe, Canada or the USA. Britain needs AC for two
weeks a year, and even then not every year. Pennsylvania is
0 F in winter and 90 F in summer, they need heating and cooling.
Being too hot is merely uncomfortable, being too cold is deadly.

-- This message is brought to you from the keyboard of
Lord Androcles, Zeroth Earl of Medway.
When the fools chicken farmer Wilson and Van de faggot present an argument I
cannot laugh at I'll retire from usenet.

[ji...@specsol.spam.sux.com]

In sci.physics hab...@anony.net wrote:
> Ok why didnt anyone think of this before?
> Why not pump heat from the building into an underground pool during
> the day and back up to heat the house or pump it to the atmosphere at
> night?

Because a heat pump has to dump the heat somewhere and the hotter that
somewhere is, the worse the efficiency.

> Solar panels could provide the small amount of energy needed
> for this 'fridge' . In India the temp is 45C or 110 F and the people
> simply cant afford electricity for air conditioning

Small amount?

Heat pumps used to produce cool use HUGE amounts of energy, which is
why they are seldom used.

Heat pumps used to produce heat use modest amounts of energy under most
circumstances.

You are still an idiot.

--
Jim Pennino

[Alex P.]

ha scritto nel messaggio news:519bfe86....@news.giganews.com...

As a lot a people already told you, it' s not pratical at all mainly due
complexity/cost of the storage, but there is an other more pratical approach
that is to exploit "solar cooling" via absorption/adsorption heat pump using
low temp hot water from thermal collectors of quite low dimensions and
costs
http://www.pole-derbi.com/fichiers/rafr_solaire__sonnenklima__derbi_2007.pdf
http://www.gbunet.de/outgoing/nak-prospect.pdf
In that way you can produce cooling power from heat (that is obviuosly very
common in the summer) with an almost negligible electricity consumption

Actually, I wonder whether the same approacch may be used in winter too, for
example in district heating networks, to have a heat pump with a heating COP
> 1 with low temperature heat as input, say, less than 100 �C (unlike
cooling where a COP of ~ 0,6-0,8 is still acceptable, for winter heating a
COP >1 is learly paramount, instead)

[Alex P.]

"Alex P." ha scritto nel messaggio
news:519cec47$0$1599$5fc...@news.tiscali.it...

> Actually, I wonder whether the same approacch may be used in winter too,
> for example in district heating networks, to have a heat pump with a
> heating COP > 1 with low temperature heat as input, say, less than 100 �C
> (unlike cooling where a COP of ~ 0,6-0,8 is still acceptable, for winter
> heating a COP >1 is learly paramount, instead)

I meant something like this adsoption heat pump, if I understand it
correctly,
http://publica.fraunhofer.de/documents/N-87872.html
with a (winter) heating COP of about 1,3 to 1,5 even with a hot water temp
input of 75 to 95 �C and a still acceptable cooling COP in summer of less
than one