Solar gas heat pump zeoTHERM Vaillant (single)

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Solar gas heat pump zeoTHERM Vaillant (single)




by Christophe » 23/05/11, 16:36

The natural gas and solar heat pump arrives for individuals with Vaillant! I named the zeoTHERM gas solar heat pump by zeolite adsorption!

This does not use a gas engine like Sanyo (much more expensive, unthinkable except self construction for a particular) see https://www.econologie.com/forums/pompe-a-ch ... t6555.html but the principle of camping gas fridge (the poor performance is offset by the recovery of heat cogeneration!)

More noise, more compressor, much less maintenance and much improved service life. In addition to the global balance sheet and CO2 it must be nice!

Finally a PAC that works to something other than Uranium ... I would say: is this the 1ere PAC econological?

Principle and advantages:

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8 Brochure pages:
.pdf: https://www.econologie.info/share/partag ... WplSLb.pdf
Online version: http://www.vaillant.be/ebooks/fr/Innova ... index.html


Official page: http://www.vaillant.be/professionnel/no ... -zeotherm/

Indicative price: 12 to 15 000 € HT (to be compared to the prices of PAC air heaters equivalent ... to the overall yield and COPA miserable) to check.


ZeoTHERM gas adsorption heat pump
Vaillant's exclusive technology combines several energy sources. The zeoTHERM offers an extremely economical and ecological heating system.

The zeoTHERM system is unique in the world. It is the only system that effectively combines combustion technology with condensing gas, zeolite sorption and solar technology. A forward-looking system that is not only efficient but also economical and environmentally friendly!

What is zeolite?

The term "zeolite" comes from the Greek - zeo (boil), lithos (stone) - and literally means "boiling stone". This extremely porous crystal has the particularity of causing an important bond of water (adsorption) while releasing heat. In order to use this natural method of heat generation, Vaillant designed the zeoTHERM gas adsorption heat pump. Compared to a conventional (compression) heat pump, deep boreholes in the soil should not be drilled here or collectors should be placed there. The zeoTHERM is simply placed in the housing, like a conventional gas boiler.

The energy generation of a zeolite takes place in two phases: adsorption and desorption.

* Adsorption: the water is heated at the bottom of the heat pump (under vacuum). The zeolite is microporous, which allows it to bind (adsorb) a lot of (vapor) water. The water vapor condenses and generates a heat of adsorption that can be used to heat the home.
* Desorption: once the zeolite is saturated and unable to bind more water, the mineral is reheated, which releases the water stored in the zeolite in the form of water vapor (desorption). This steam is then fed to the bottom of the heat pump where it condenses, and releases heat again.
* After a cooling period, this heating loop can start again.

It is important to add that zeolite is neither toxic nor flammable and ecologically safe (neutral). During the adsorption and desorption phases of the zeolite, no chemical reaction enters into play. This is a purely physical reaction leaving the crystalline structure of the mineral perfectly intact. This allows an almost infinite number of humidification and drying cycles.

Economic and ecological ... 30% less CO2

The entire zeoTHERM system consists of the zeoTHERM gas adsorption heat pump, three flat solar panels and a solar sanitary preparer. This is an ideal solution for a completely renovated home with low temperature requirements or for new construction. The solar panels serve on the one hand to heat the water to turn it into steam during the adsorption phase. This is done under vacuum, and the water already boils at a very low temperature (4 ° C) and therefore requires very little solar energy. The solar panels and the solar sanitary preparer are also used for the production of hot water. In summer, it is even possible, in case of sufficient sunshine, to supply the house with hot water without the zeoTHERM going into service.

Gas is the purest and most economical fossil fuel of all while the sun, water and zeolite are 100% environmentally friendly. The adsorption process is done without any combustion and therefore does not reject any emission. This future system displays a return of 118% HS.

The entire zeoTHERM system provides heat and hot water throughout the year and is 30% better than a conventional gas boiler. In comparison with a condensing gas boiler, the efficiency is increased by at least 20%. Even compared to a condensing gas boiler combined with a solar system, the zeoTHERM system guarantees a higher yield of 10%.


In fact, in all rigor, it is more of a “solar thermal buffer by zeolite” boiler than a real heat pump. Am I wrong?

See also solar air conditioning by adsorption: https://www.econologie.com/forums/climatisat ... t2093.html
https://www.econologie.com/climatisation ... -3266.html
https://www.econologie.com/le-froid-sola ... -3265.html
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by Capt_Maloche » 29/05/11, 23:20

Interesting, but I did not understand everything :D

Water is heated under vacuum with solar panels or a gas burner from 4 ° C, ok

The water vapor is adsorbed by the zeolite, which produces heat? ok, listen, performance? ratio?.

once saturated, the zeolite is desorbed by heating it, it releases the condensing water vapor and must deliver calories
uh, yes but the tank is under vacuum, we recover at what temperature?

if it's a reversible cycle, it takes about the same amount of energy to adsorb as to desorb

do they vary the pressure of the tank to alternate cycles?

not clear
y Would not have a pattern with pressures and temperatures, and also the powers involved?

http://fr.wikipedia.org/wiki/Z%C3%A9olithe
after research, there is a package of possibilities, what is the family used to provide heat during adsorption?

The family of natural zeolites includes:

1) Family of Analcimes:

Analcime (Si-Al-Na hydrated)
Pollucite (Si-Al-Cs-Na hydrated)
Wairakite (Si-Al-Ca-Na hydrated)
Bellbergite (Si-Al-K-Ba-Sr-Na hydrate)
Bikitaite (Si-Al-Li hydrated)
Boggsite (Si-Al-Ca-Na hydrated)
Brewsterite (Si-Al-Sr-Ba-Na-Ca hydrate)

2) Family of Chabazites:

Chabazite (Si-Al-Ca hydrate)
Willhendersonite (Si-Al-K-Ca hydrated)
Cowlesite (Si-Al-Ca hydrated)
Dachiardite (Si-Al-Ca-Na-K hydrated)
Edingtonite (Si-Al-Ba-Ca hydrated)
Epistilbite (Si-Al-Ca hydrate)
Erionite (Si-Al-Na-K-Ca hydrate)
Faujasite (Si-Al-Na-Ca-Mg hydrated)
Ferrierite (Si-Al-Na-K-Mg-Ca hydrate)
Herschelite (Si-Al-Na-K-Ca hydrate)



3) Family of Gismondines:

Amicite (Si-Al-K-Na hydrated)
Garronite (Si-Al-Ca hydrated)
Gismondine (Si-Al-Ba-Ca hydrated)
Gobbinsite (Si-Al-Na-K-Ca hydrate)
Gmelinite (Si-Al-Na-Ca hydrated)
Gonnardite (Si-Al-Na-Ca hydrated)
Goosecreekite (Si-Al-Ca hydrated)

4) Harmotome family:

Harmotome (Si-Al-Ba-K hydrated)
Phillipsite (Si-Al-K-Na-Ca hydrated)
Wellsite (Si-Al-Ba-Ca-K hydrated)

5) Family of Heulandites:

Clinoptilolite (Si-Al-Na-K-Ca hydrate)
Heulandite (Si-Al-Na-Ca hydrate)
Laumontite (Si-Al-Ca hydrated)
Levyne (Si-Al-Ca-Na-K hydrated)
Mazzite (Si-Al-K-Na-Mg-Ca hydrate)
Merlinoite (Si-Al-K-Na-Ca-Ba Hydrated)
Montesommaite (Si-Al-K-Na hydrated)
Mordenite (Si-Al-Na-K-Ca hydrate)
Maricopaite (Si-Al-lead-Ca hydrate)




6) Family of Natrolites:

Mesolite (Si-Al-Na-Ca hydrated)
Natrolite (Si-Al-Na hydrated)
Scolecite (Si-Al-Ca hydrated)
Offretite (Si-Al-Ca-K-Mg hydrated)
Paranatrolite (Si-Al-Na hydrated)
Paulingite (Si-Al-K-Ca-Na-Ba Hydrated)
Perlialite (Si-Al-K-Na-Ca-Sr hydrate)

7) Family of Stilbites:

Barrerite (Si-Al-Na-K-Ca hydrate)
Stilbite (Si-Al-Na-Ca hydrated)
Stellerite (Si-Al-Ca hydrated)
Thomsonite (Si-Al-Na-Ca hydrate)
Tschernichite (Si-Al-Ca hydrated)
Yugawaralite (Si-Al-Ca hydrated)

8) Not determined :

Sodium dachiardite
Tetranatrolite
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by dedeleco » 30/05/11, 01:10

This is not new, because it is basic thermodynamics, especially used to make cold, and you can do it with activated carbon, too, and you tinker with it for cheap at the price of activated carbon or zeolite, and containers which are cycled in temperature.
Virtually any physically or reversibly reactive substance can be used with more or less efficiency.

Well known example: lime: beautiful heat pump because it heats well mixed with water in good proportions and recycled in the sun well concentrated to evaporate the water !!
At mid cycle, it stores heat too.
The zeolite is the same with less heat and therefore lower T.
You can take anything, like water in sulfuric acid, recyclable, etc ...
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