Searched for: author:"van Helden, W.G.J."
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van Helden, W.G.J. (author), Bakker, M. (author), Hauer, A. (author), Energieonderzoek Centrum Nederland (author)
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conference paper 2009
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Schuitema, R. (author), van Helden, W.G.J. (author), Zondag, H.A. (author), Bakker, M. (author), van Essen, V.M. (author), Bleijendaal, L.P.J. (author), Cot Gores, J. (author), Energieonderzoek Centrum Nederland (author)
n.v.t.
conference paper 2009
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van Helden, W.G.J. (author), Bakker, M. (author), Hauer, A. (author), Energieonderzoek Centrum Nederland (author)
A new IEA Task has recently been initiated to develop new storage materials. This Task is implemented as a Joint Task between the Solar Heating and Cooling (SHC) and Energy Conservation through Energy Storage (ECES) Implementing Agreements, and is entitled “IEA SHC/ECES 42/24: Compact thermal energy storage: material development for system...
conference paper 2009
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van Helden, W.G.J. (author), Energieonderzoek Centrum Nederland (author)
n.v.t.
article 2009
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van Helden, W.G.J. (author)
n.v.t.
public lecture 2009
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van Helden, W.G.J. (author), Bakker, M. (author), Hauer, A. (author), Energieonderzoek Centrum Nederland (author)
n.v.t.
conference paper 2009
document
van Helden, W.G.J. (author), Bakker, M. (author), Hauer, A. (author), Energieonderzoek Centrum Nederland (author)
A new IEA Task has recently been initiated to develop new storage materials. This Task is implemented as a Joint Task between the Solar eating and Cooling (SHC)and Energy Conservation through Energy Storage (ECES) Implementing Agreements, and is entitled “IEA SHC/ECES 42/24: Compact thermal energy storage: material development for system...
conference paper 2009
document
Schuitema, R. (author), van Helden, W.G.J. (author), Zondag, H.A. (author), Bakker, M. (author), van Essen, V.M. (author), Bleijendaal, L.P.J. (author), Kalbasenka, A.N. (author), Energieonderzoek Centrum Nederland (author)
Traditional heat storage techniques have a number of disadvantages for long-term heat storage, such as substantial heat loss and relatively low energy density (large volume). As an alternative, it is possible to store energy by means of reversible chemical reactions. For seasonal thermal storage by means of such ThermoChemical Materials (TCM),...
conference paper 2009
document
van Helden, W.G.J. (author), Bakker, M. (author), Hauer, A. (author), Energieonderzoek Centrum Nederland (author)
n.v.t.
conference paper 2009
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van Helden, W.G.J. (author), Energieonderzoek Centrum Nederland (author)
The goal of the WAELS project is to lay the foundations for the development of houses that are energy supplying on an annual basis. The project is financed by the EOS-LT program and is carried out by ECN, TNO and the Eindhoven University of Technology. In the 2 ?Πyear in which the project ran some important steps have been set in the development...
report 2009
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Schuitema, R. (author), van Helden, W.G.J. (author), Zondag, H.A. (author), Krosse, L. (author), van Essen, V.M. (author), Bleijendaal, L.P.J. (author), Kalbasenka, A. (author), Energieonderzoek Centrum Nederland (author)
This paper summarises the findings of a parameter study on a TCM reactor, and in addition presents first calculations on the dimensioning of three concepts for dehydration reactors.
conference paper 2009
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Schuitema, R. (author), van Helden, W.G.J. (author), Zondag, H.A. (author), Bakker, M. (author), van Essen, V.M. (author), Rindt, C. (author), Bleijendaal, L.P.J. (author), Cot Gores, J. (author), He, Z. (author)
Water vapor sorption in salt hydrates is one of the most promising means for compact, low loss, and long-term storage of solar heat in the built environment. One of the most interesting salt hydrates for compact seasonal heat storage is magnesium sulfate heptahydrate MgSO4·7H2O . This paper describes the characterization of MgSO4·7H2O to examine...
article 2009
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Schuitema, R. (author), van Helden, W.G.J. (author), Zondag, H.A. (author), van Essen, V.M. (author), Energieonderzoek Centrum Nederland (author)
Magnesium sulfate hepta hydrate (MgSO4.7H2O) was studied as possible thermochemical material for seasonal storage of solar heat. Both hydration and dehydration were investigated and it was found that the material was able to take up and release almost 10 times more energy than water of the same volume. The amount of water taken up and energy...
conference paper 2009
document
van Helden, W.G.J. (author), Bakker, M. (author), van Essen, V.M. (author), Energieonderzoek Centrum Nederland (author)
n.v.t.
conference paper 2009
document
Schuitema, R. (author), van Helden, W.G.J. (author), Zondag, H.A. (author), van Essen, V.M. (author), Bleijendaal, L.P.J. (author), Cot Gores, J. (author), Planje, W. (author), Epema, T. (author), Oversloot, H. (author), Energieonderzoek Centrum Nederland (author)
n.v.t.
conference paper 2009
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van Helden, W.G.J. (author), Bakker, M. (author)
n.v.t.
public lecture 2009
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van Helden, W.G.J. (author), Bakker, M. (author), Hauer, A. (author)
n.v.t.
public lecture 2009
document
Schuitema, R. (author), van Helden, W.G.J. (author), Zondag, H.A. (author), van Essen, V.M. (author), Bleijendaal, L.P.J. (author), Cot Gores, J. (author), Energieonderzoek Centrum Nederland (author)
The salt hydrates MgSO4,.7H2O, Al2SO4.18H2O, MgCl2.6H2O and CaCl2.2H2O were studied as possible thermochemical materials for seasonal heat storage of solar heat. It is possible for all four salt hydrates to be dehydrated at temperatures that can be achieved with a medium temperature collector. Based on temperature lifts observed during hydration...
conference paper 2009
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van Helden, W.G.J. (author), Bakker, M. (author)
n.v.t.
public lecture 2008
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van Helden, W.G.J. (author)
n.v.t.
public lecture 2008
Searched for: author:"van Helden, W.G.J."
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