TORWASH experimenten Waterpest en Cabomba

In Nederland worden woekerende waterplanten geoogste om de waterwegen open te houden. Het is de verwachting dat door verbeteringen in de waterkwaliteit de groei van deze planten nog verder zal toenemen. Waternet, het bedrijf wat verantwoordelijk is voor de waterwegen in en rond Amsterdam en zich richt op de hele watercyclus, wil de geoogste...

Conversion of water plants to biomass fuel using torwash

Invasive water plants are harvested in The Netherlands in order to keep waterways open. It is expected that due to improved water quality the growth of these water plants will increase significantly. Waternet, the watercycle company of Amsterdam and surrounding areas, wishes to turn this material into useful products. One of the investigated...

TORWASH of Water Plants

Comparing the options to produce SNG from biomass

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Application of MgCl2•6H2O for thermochemical seasonal solar heat storage

The heat demand in the summer can be completely fulfilled using solar heat, but in the winter the heat demand is exceeding the solar supply. A solution is to store the excess of solar energy in the summer, and to use it to fulfill the heat demand in the winter. Water is traditionally used for storing heat (e.g. solar boiler), but seasonal heat...

Development of a compact heat storage system based on salt hydrates

Thermochemical reactions are one of the most promising means for compact, low loss and long term storage of solar heat in the built environment. The heat can be stored by making use of a reversible chemical reaction. In theory, an energy density 5-10 times higher than water can be reached. Additionally, no storage losses are associated with...

An evaluation of the economical feasibility of seasonal sorption heat storage

An evaluation is presented of the economical feasibility of seasonal heat storage of solar heat with sorption materials. The seasonal sorption heat storage is shown to pay itself back over its lifetime, under the assumptions presented. Attention is given to the verification of the assumptions, since these have a large effect on the conclusions.

Application of MgCl2.6H2O for thermochemical seasonal solar heat storage

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Comparison of reactor concepts for thermochemical storage of solar heat

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Engineering assessment of reactor designs for thermochemical storage of solar heat

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),...

Rampersand D of thermochemical reactor concepts to enable seasonal heat storage of solar energy in residential houses

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Characterization of salt hydrates for compact seasonal thermochemical storage

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...

First studies in reactor concepts for Thermochemical Storage

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.

Characterization of MgSO4 hydrate for thermochemical seasonal heat storage

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...