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Mazur, N. (author), Huinink, H. (author), Fischer, H. (author), Adan, O. (author)This work investigates the reactions occurring in K2CO3–H2O–CO2 under ambient CO2 pressures in temperature and vapor pressure ranges applicable for domestic thermochemical heat storage. The investigation shows that depending on reaction conditions, the primary product of a reaction is K2CO3·1.5H2O, K2CO3·2KHCO3·1.5H2O, or a mixture of both. The...article 2022
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Dinkelman, D. (author), Carpentier, S.F.A. (author), Koenen, M. (author), Oerlemans, P. (author), Godschalk, B. (author), Peters, E. (author), Bos, W. (author), Vrijlandt, M.A.W. (author), van Wees, J.D.A.M. (author)In 2021, the first full scale high-temperature aquifer thermal energy storage (HT-ATES) system became operational in Middenmeer, the Netherlands. The system is operated by ECW Energy and realized within the framework of the GEOTHERMICA HEATSTORE project. A dedicated monitoring program, including distributed heating sensors (distributed...conference paper 2022
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Mazur, N. (author), Huinink, H. (author), Borm, B. (author), Sansota, S. (author), Fischer, H. (author), Adan, O.C.G. (author)This work studied the reversible dehydration of potassium carbonate sesquihydrate (K2CO3·1.5H2O). The study is based on isobaric and isothermal thermogravimetric measurements conducted at a broad range of vapour pressures and temperatures. By controlling both parameters, we examined the influence of both constraints on the reaction kinetics at a...article 2022
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Mazur, N. (author), Salviati, S. (author), Huinink, H. (author), Fina, A. (author), Carioso, A. (author), Fisher, P. (author), Adan, O. (author)Thermochemical heat storage (TCHS) in salt hydrates attracts increasing interest due to the high energy density combined with loss-free storage. Strontium bromide hexahydrate (SBH), and composites thereof, are often suggested as suitable materials for this application. Although many aspects of SBH composites have been thoroughly investigated,...article 2022
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Mazur, N. (author), Huinink, H. (author), Fischer, H. (author), Donkers, P. (author), Adan, O. (author)Potassium carbonate (K2CO3) is a promising thermochemical heat storage material (TCM). However, it suffers from hysteresis between (de)hydration temperatures and poor reaction kinetics close to equilibrium conditions. Both aspects are caused by a nucleation barrier and low ionic mobility close to equilibrium. This study investigates the impact...article 2022
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Mazur, N. (author), Huinink, H. (author), Borm, B. (author), Sansota, S. (author), Fischer, H. (author), Adan, O. (author)This work studied the reversible dehydration of potassium carbonate sesquihydrate (K2CO3·1.5H2O). The study is based on isobaric and isothermal thermogravimetric measurements conducted at a broad range of vapour pressures and temperatures. By controlling both parameters, we examined the influence of both constraints on the reaction kinetics at a...article 2022
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Sögütoglu, L.-C. (author), Birkelbach, F. (author), Werner, A. (author), Fischer, H. (author), Huinink, H. (author), Adan, O.C.G. (author)K2CO3 is a promising salt for thermochemical heat storage. For a high performance, the thermochemical reaction must take place as close as possible to the equilibrium, while ensuring sufficient reaction rates. In this work, we studied the near-equilibrium hydration kinetics of K2CO3 and other salts (CuCl2, MgCl2 and LiCl). We proposed a generic...article 2021
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Fokker, P.A. (author), Borello, E.S. (author), Viberti, D. (author), Verga, F. (author), van Wees, J.D. (author)Seasonal storage of heat in shallow aquifers for increasing the efficiency of geothermal energy systems requires a proper monitoring strategy. We expanded our earlier work on harmonic pulse testing (HPT) to incorporate the effect of a temperature front moving into the reservoir due to injection of hot (or cold) water. Our analytical solutions...article 2021
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- Tejada-Arango, D.A. (author), Morales-Espana, G.A. (author), Wogrin, S. (author) article 2020
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van Unen, M. (author), van der Valk, K. (author), Koornneef, J. (author), Brunner, L. (author), Koenen, M. (author)In order to make the transition to a low-carbon energy system, sustainable energy sources are required as alternatives for fossil fuels. The heating and cooling sector is of major importance for the final energy consumption in Europe, and therefore the deployment of the thermal energy sector could be a good contribution to a sustainable energy...report 2020
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Pippia, T. (author), Sijs, J. (author), de Schutter, B. (author)A single-level rule-based model predictive control (RBMPC) scheme is presented for optimizing the energy management of a grid-connected microgrid composed of local production units, renewable energy sources, local loads, and several types of energy storage systems (ESSs). The single-level controller uses two different models that yield different...article 2020
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Koirala, B.P. (author), van Oost, E. (author), van der Windt, H. (author)With energy transition gaining momentum, energy storage technologies are increasingly spotlighted as they can effectively handle mismatches in supply and demand. The decreasing cost of distributed energy generation technologies and energy storage technologies as well as increasing demand for local flexibility is opening up new possibilities for...article 2020
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Scapino, L. (author), de Servi, C. (author), Zondag, H.A. (author), Diriken, J. (author), Rindt, C.C.M. (author), Sciacovelli, A. (author)Sorption thermal energy storage (STES) has the potential to have higher energy densities and lower thermal losses compared to conventional thermal storage technologies, and it can contribute to increase the energy grid flexibility and the penetration of intermittent and distributed energy sources. However, STES is a technology still under...article 2020
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Shkatulov, A. (author), Joosten, R. (author), Fischer, H. (author), Huinink, H. (author)The advent of thermochemical energy storage (TcES), that is, storage of thermal energy by means of reversible chemical reactions, incites finding pathways of stabilization of thermochemical materials for thermal batteries of the future. Currently, salt hydrates such as LiCl·H2O, CaCl2·6H2O, and SrBr2·6H2O are being actively studied for TcES in...article 2020
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Kazemi, N. (author), Danilov, D.L. (author), Haverkate, L.A. (author), Dudney, N.J. (author), Unnikrishnan, S. (author), Notten, P.H.L. (author)Thin-film Solid-State Batteries (TFSSB) is one of most promising and quickly developing fields in modern electrochemical energy storage. Modeling these devices is interesting from theoretical and practical point of view. This paper represents a simulation approach for TFSSB which overcome a major drawback of available mathematical models, i.e....article 2019
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Sogütoglu, L.C. (author), Steiger, M. (author), Houben, J. (author), Biemans, D. (author), Fischer, H.R. (author), Donkers, P.A.J. (author), Huinink, H. (author), Adan, O.C.G. (author)The solid-state hydration of salts has gained particular interest within the frame of thermochemical energy storage. In this work, the water vapor pressure-temperature (p-T) phase diagram of the following thermochemical salts was constructed by combining equilibrium and nonequilibrium hydration experiments: CuCl 2 , K 2 CO 3 , MgCl 2 ·4H 2 O,...article 2019
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Carneiro, J.F. (author), Matos, C.R. (author), van Gessel, S.F. (author)This article presents the methodology and results of the first screening conducted in Portugal to identify geological formations suitable for large-scale storage of energy from renewable sources. The screening focused on the identification of adequate porous media rocks, salt formations and igneous host rocks that could act as reservoirs for gas...article 2019
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Scapino, L. (author), Zondag, H.A. (author), Diriken, J. (author), Rindt, C.C.M. (author), van Bael, J. (author), Sciacovelli, A. (author)Sorption technology has the potential to provide high energy density thermal storage units with negligible losses. However, major experimental and computational advancements are necessary to unlock the full potential of such storage technology, and to efficiently model its performance at system scale. This work addresses for the first time, the...article 2019
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Shkatulov, A.I. (author), Houben, J. (author), Fischer, H. (author), Huinink, H.P. (author)Thermochemical energy storage (TCES) is an emerging technology promising for domestic applications. Recently, K2CO3 was identified and studied as a TCES material. In this work, the composite “K2CO3 in expanded vermiculite” (69 wt. % of the salt) was prepared and studied for thermochemical energy storage bearing in mind its application for space...article 2019
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Sastre, F. (author), Versluis, C. (author), Meulendijks, N.M.M. (author), Rodriguez-Fernandez, J. (author), Sweelssen, J. (author), Elen, K. (author), van Bael, M.K. (author), den Hartog, T. (author), M.A. Verheijen, . (author), Buskens, P.J.P. (author)Methane, which has a high energy storage density and is safely stored and transported in our existing infrastructure, can be produced through conversion of the undesired energy carrier H2 with CO2. Methane production with standard transition-metal catalysts requires high-temperature activation (300−500 °C). Alternatively, semiconductor metal...article 2019