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Dr. Gabriel Zsembinszki
GREiA research group, University of Lleida, 25003 Lleida, Spain

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0 Energy Efficiency
0 Heat Transfer
0 Refrigeration
0 numerical simulations
0 Thermal energy storge

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Energy Efficiency
Refrigeration

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Journal article
Published: 02 July 2021 in Applied Sciences
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The use of latent heat thermal energy storage is an effective way to increase the efficiency of energy systems due to its high energy density compared with sensible heat storage systems. The design of the storage material encapsulation is one of the key parameters that critically affect the heat transfer in charging/discharging of the storage system. To fill the gap found in the literature, this paper experimentally investigates the effect of the macro-encapsulation design on the performance of a lab-scale thermal energy storage tank. Two rectangular slabs with the same length and width but different thickness (35 mm and 17 mm) filled with commercial phase change material were used. The results show that using thinner slabs achieved a higher power, leading to a reduction in the charging and discharging time of 14% and 30%, respectively, compared with the thicker slabs. Moreover, the variation of the heat transfer fluid flow rate has a deeper impact on the temperature distribution and the energy charged/released when thicker slabs were used. The macro-encapsulation design did not have a significant impact on the discharging efficiency of the tank, which was around 85% for the operating thresholds considered in this study.

ACS Style

David Vérez; Emiliano Borri; Alicia Crespo; Boniface Mselle; Álvaro de Gracia; Gabriel Zsembinszki; Luisa Cabeza. Experimental Study on Two PCM Macro-Encapsulation Designs in a Thermal Energy Storage Tank. Applied Sciences 2021, 11, 6171 .

AMA Style

David Vérez, Emiliano Borri, Alicia Crespo, Boniface Mselle, Álvaro de Gracia, Gabriel Zsembinszki, Luisa Cabeza. Experimental Study on Two PCM Macro-Encapsulation Designs in a Thermal Energy Storage Tank. Applied Sciences. 2021; 11 (13):6171.

Chicago/Turabian Style

David Vérez; Emiliano Borri; Alicia Crespo; Boniface Mselle; Álvaro de Gracia; Gabriel Zsembinszki; Luisa Cabeza. 2021. "Experimental Study on Two PCM Macro-Encapsulation Designs in a Thermal Energy Storage Tank." Applied Sciences 11, no. 13: 6171.

Journal article
Published: 11 May 2021 in Sustainability
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Insulation of thermal energy storage tanks is fundamental to reduce heat losses and to achieve high energy storage efficiency. Although water tanks were extensively studied in the literature, the enhancement of the insulation quality is often overlooked. The use of vacuum insulation has the potential to significantly reduce heat losses without affecting the dimension of the storage system. This paper shows for the first time the results of the heat losses tests done for a 0.535 m3 water tank for residential building applications built with a double wall vacuum insulation. The different tests show that the rate of heat losses strictly depends on the temperature distribution inside the tank at the beginning of the experiment. Compared to a conventional water tank insulated with conventional materials, the U-value of the lateral surface was reduced by almost three times (from 1.05 W/K·m2 to 0.38 W/K·m2) using vacuum insulation. However, the bottom part, which is usually used to place the support parts and the piping, is the critical design part of those tanks acting as a thermal bridge with the ambient and enhancing heat losses.

ACS Style

David Vérez; Emiliano Borri; Alicia Crespo; Gabriel Zsembinszki; Belal Dawoud; Luisa Cabeza. Experimental Study of a Small-Size Vacuum Insulated Water Tank for Building Applications. Sustainability 2021, 13, 5329 .

AMA Style

David Vérez, Emiliano Borri, Alicia Crespo, Gabriel Zsembinszki, Belal Dawoud, Luisa Cabeza. Experimental Study of a Small-Size Vacuum Insulated Water Tank for Building Applications. Sustainability. 2021; 13 (10):5329.

Chicago/Turabian Style

David Vérez; Emiliano Borri; Alicia Crespo; Gabriel Zsembinszki; Belal Dawoud; Luisa Cabeza. 2021. "Experimental Study of a Small-Size Vacuum Insulated Water Tank for Building Applications." Sustainability 13, no. 10: 5329.

Journal article
Published: 10 May 2021 in Sustainability
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The buildings sector is one of the least sustainable activities in the world, accounting for around 40% of the total global energy demand. With the aim to reduce the environmental impact of this sector, the use of renewable energy sources coupled with energy storage systems in buildings has been investigated in recent years. Innovative solutions for cooling, heating, and domestic hot water in buildings can contribute to the buildings’ decarbonization by achieving a reduction of building electrical consumption needed to keep comfortable conditions. However, the environmental impact of a new system is not only related to its electrical consumption from the grid, but also to the environmental load produced in the manufacturing and disposal stages of system components. This study investigates the environmental impact of an innovative system proposed for residential buildings in Mediterranean climate through a life cycle assessment. The results show that, due to the complexity of the system, the manufacturing and disposal stages have a high environmental impact, which is not compensated by the reduction of the impact during the operational stage. A parametric study was also performed to investigate the effect of the design of the storage system on the overall system impact.

ACS Style

Gabriel Zsembinszki; Noelia Llantoy; Valeria Palomba; Andrea Frazzica; Mattia Dallapiccola; Federico Trentin; Luisa Cabeza. Life Cycle Assessment (LCA) of an Innovative Compact Hybrid Electrical-Thermal Storage System for Residential Buildings in Mediterranean Climate. Sustainability 2021, 13, 5322 .

AMA Style

Gabriel Zsembinszki, Noelia Llantoy, Valeria Palomba, Andrea Frazzica, Mattia Dallapiccola, Federico Trentin, Luisa Cabeza. Life Cycle Assessment (LCA) of an Innovative Compact Hybrid Electrical-Thermal Storage System for Residential Buildings in Mediterranean Climate. Sustainability. 2021; 13 (9):5322.

Chicago/Turabian Style

Gabriel Zsembinszki; Noelia Llantoy; Valeria Palomba; Andrea Frazzica; Mattia Dallapiccola; Federico Trentin; Luisa Cabeza. 2021. "Life Cycle Assessment (LCA) of an Innovative Compact Hybrid Electrical-Thermal Storage System for Residential Buildings in Mediterranean Climate." Sustainability 13, no. 9: 5322.

Journal article
Published: 03 May 2021 in Buildings
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Deep Reinforcement Learning (DRL) proved to be successful for solving complex control problems and has become a hot topic in the field of energy systems control, but for the particular case of thermal energy storage (TES) systems, only a few studies have been reported, all of them with a complexity degree of the TES system far below the one of this study. In this paper, we step forward through a DRL architecture able to deal with the complexity of an innovative hybrid energy storage system, devising appropriate high-level control operations (or policies) over its subsystems that result optimal from an energy or monetary point of view. The results show that a DRL policy in the system control can reduce the system operating costs by more than 50%, as compared to a rule-based control (RBC) policy, for cooling supply to a reference residential building in Mediterranean climate during a period of 18 days. Moreover, a robustness analysis was carried out, which showed that, even for large errors in the parameters of the system simulation models corresponding to an error multiplying factors up to 2, the average cost obtained with the original model deviates from the optimum value by less than 3%, demonstrating the robustness of the solution over a wide range of model errors.

ACS Style

Gabriel Zsembinszki; Cèsar Fernández; David Vérez; Luisa Cabeza. Deep Learning Optimal Control for a Complex Hybrid Energy Storage System. Buildings 2021, 11, 194 .

AMA Style

Gabriel Zsembinszki, Cèsar Fernández, David Vérez, Luisa Cabeza. Deep Learning Optimal Control for a Complex Hybrid Energy Storage System. Buildings. 2021; 11 (5):194.

Chicago/Turabian Style

Gabriel Zsembinszki; Cèsar Fernández; David Vérez; Luisa Cabeza. 2021. "Deep Learning Optimal Control for a Complex Hybrid Energy Storage System." Buildings 11, no. 5: 194.

Journal article
Published: 02 May 2021 in Energies
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In this study, a thermal energy storage tank filled with commercial phase change material flat slabs is investigated. The tank provides heat at around 15 °C to the evaporator of a seasonal thermal energy storage system developed under the EU-funded project SWS-Heating. A 2D numerical model of the phase changed material storage tank based on the finite control volume approach was developed and validated with experimental data. Based on the validated model, an optimization was performed to identify the number, type and configuration of slabs. The final goal of the phase change material tank model is to be implemented into the whole generic heating system model. A trade-off between results’ accuracy and computational time of the phase change material model is needed. Therefore, a comparison between a 2D implicit and 2D explicit scheme of the model was performed. The results showed that using an explicit scheme instead of an implicit scheme with a reasonable number of nodes (15 to 25) in the heat transfer fluid direction allowed a considerable decrease in the computational time (7 times for the best case) with only a slight reduction in the accuracy in terms on mean average percentage error (0.44%).

ACS Style

Alicia Crespo; Gabriel Zsembinszki; David Vérez; Emiliano Borri; Cèsar Fernández; Luisa Cabeza; Alvaro de Gracia. Optimization of Design Variables of a Phase Change Material Storage Tank and Comparison of a 2D Implicit vs. 2D Explicit Model. Energies 2021, 14, 2605 .

AMA Style

Alicia Crespo, Gabriel Zsembinszki, David Vérez, Emiliano Borri, Cèsar Fernández, Luisa Cabeza, Alvaro de Gracia. Optimization of Design Variables of a Phase Change Material Storage Tank and Comparison of a 2D Implicit vs. 2D Explicit Model. Energies. 2021; 14 (9):2605.

Chicago/Turabian Style

Alicia Crespo; Gabriel Zsembinszki; David Vérez; Emiliano Borri; Cèsar Fernández; Luisa Cabeza; Alvaro de Gracia. 2021. "Optimization of Design Variables of a Phase Change Material Storage Tank and Comparison of a 2D Implicit vs. 2D Explicit Model." Energies 14, no. 9: 2605.

Journal article
Published: 30 April 2021 in Energies
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The need for innovative heating and cooling systems to decarbonize the building sector is widely recognized. It is especially important to increase the share of renewables at building level by maximizing self-consumption and reducing the primary energy demand. Accordingly, in the present paper, the results on a wide experimental campaign on a hybrid system are discussed. The system included a sorption module working as the topping cycle in a cascade configuration with a DC-driven vapor compression heat pump. A three-fluids heat exchanger with a phase change material (PCM), i.e., RT4 with nominal melting temperature of 4 °C, was installed on the evaporator side of the heat pump, for simultaneous operation as thermal storage and heat pumping purposes. The heat pump was connected to a DC-bus that included PV connection and electricity storage (batteries). Results showed that the energy efficiency of the heat pump in cascade operation was double compared to compression-only configuration and that, when simultaneously charging and discharging the latent storage in cascade configuration, no penalization in terms of efficiency compared to the compression-only configuration was measured. The self-sufficiency of the system was evaluated for three reference weeks in summer conditions of Athens climate and it was found that up to 100% of the electricity needed to drive the system could be self-produced for a modest cooling demand and up to 67% for the warmer conditions with high cooling demand.

ACS Style

Valeria Palomba; Antonino Bonanno; Giovanni Brunaccini; Davide Aloisio; Francesco Sergi; Giuseppe Dino; Efstratios Varvaggiannis; Sotirios Karellas; Birgo Nitsch; Andreas Strehlow; André Groβe; Ralph Herrmann; Nikolaos Barmparitsas; Nelson Koch; David Vérez; Luisa Cabeza; Gabriel Zsembinszki; Andrea Frazzica. Hybrid Cascade Heat Pump and Thermal-Electric Energy Storage System for Residential Buildings: Experimental Testing and Performance Analysis. Energies 2021, 14, 2580 .

AMA Style

Valeria Palomba, Antonino Bonanno, Giovanni Brunaccini, Davide Aloisio, Francesco Sergi, Giuseppe Dino, Efstratios Varvaggiannis, Sotirios Karellas, Birgo Nitsch, Andreas Strehlow, André Groβe, Ralph Herrmann, Nikolaos Barmparitsas, Nelson Koch, David Vérez, Luisa Cabeza, Gabriel Zsembinszki, Andrea Frazzica. Hybrid Cascade Heat Pump and Thermal-Electric Energy Storage System for Residential Buildings: Experimental Testing and Performance Analysis. Energies. 2021; 14 (9):2580.

Chicago/Turabian Style

Valeria Palomba; Antonino Bonanno; Giovanni Brunaccini; Davide Aloisio; Francesco Sergi; Giuseppe Dino; Efstratios Varvaggiannis; Sotirios Karellas; Birgo Nitsch; Andreas Strehlow; André Groβe; Ralph Herrmann; Nikolaos Barmparitsas; Nelson Koch; David Vérez; Luisa Cabeza; Gabriel Zsembinszki; Andrea Frazzica. 2021. "Hybrid Cascade Heat Pump and Thermal-Electric Energy Storage System for Residential Buildings: Experimental Testing and Performance Analysis." Energies 14, no. 9: 2580.

Journal article
Published: 23 April 2021 in Applied Sciences
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With the aim of contributing to achieving the decarbonization of the energy sector, the environmental impact of an innovative system to produce heating and domestic hot water for heating demand-dominated climates is assessed is evaluated. The evaluation is conducted using the life cycle assessment (LCA) methodology and the ReCiPe and IPCC GWP indicators for the manufacturing and operation stages, and comparing the system to a reference one. Results show that the innovative system has a lower overall impact than the reference one. Moreover, a parametric study to evaluate the impact of the refrigerant is carried out, showing that the impact of the overall systems is not affected if the amount of refrigerant or the impact of refrigerant is increased.

ACS Style

Noelia Llantoy; Gabriel Zsembinszki; Valeria Palomba; Andrea Frazzica; Mattia Dallapiccola; Federico Trentin; Luisa Cabeza. Life Cycle Assessment of an Innovative Hybrid Energy Storage System for Residential Buildings in Continental Climates. Applied Sciences 2021, 11, 3820 .

AMA Style

Noelia Llantoy, Gabriel Zsembinszki, Valeria Palomba, Andrea Frazzica, Mattia Dallapiccola, Federico Trentin, Luisa Cabeza. Life Cycle Assessment of an Innovative Hybrid Energy Storage System for Residential Buildings in Continental Climates. Applied Sciences. 2021; 11 (9):3820.

Chicago/Turabian Style

Noelia Llantoy; Gabriel Zsembinszki; Valeria Palomba; Andrea Frazzica; Mattia Dallapiccola; Federico Trentin; Luisa Cabeza. 2021. "Life Cycle Assessment of an Innovative Hybrid Energy Storage System for Residential Buildings in Continental Climates." Applied Sciences 11, no. 9: 3820.

Review
Published: 05 February 2021 in Applied Thermal Engineering
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The energy consumption in the built environment represents one of the major contributors of carbon emissions to the atmosphere. This leads to the need for a transition in the building sector and the introduction of policies that pursue high efficiency in residential and non-residential buildings with an increasing share of renewables. The benefit of the use of thermal energy storage is widely recognized to increase the efficiency of energy systems in different building typologies, to help in the introduction of renewable energies in buildings and to reduce the energy demand needed for heating and cooling. Nowadays, different thermal energy storage technologies are available, including sensible, latent, and sorption and chemical reactions (also called thermochemical) energy storage. Although in the past twenty years, the scientific literature showed an increasing trend in the research of thermal energy storage integrated to the building sector, it was only in recent years that this concept was extended to the built environment, which includes residential and non-residential buildings, districts, and urban networks. This paper provides a comprehensive review and classification of thermal energy storage technologies applied in the built environment considering the trends and the future perspective of the past and current research.

ACS Style

Emiliano Borri; Gabriel Zsembinszki; Luisa F. Cabeza. Recent developments of thermal energy storage applications in the built environment: A bibliometric analysis and systematic review. Applied Thermal Engineering 2021, 189, 116666 .

AMA Style

Emiliano Borri, Gabriel Zsembinszki, Luisa F. Cabeza. Recent developments of thermal energy storage applications in the built environment: A bibliometric analysis and systematic review. Applied Thermal Engineering. 2021; 189 ():116666.

Chicago/Turabian Style

Emiliano Borri; Gabriel Zsembinszki; Luisa F. Cabeza. 2021. "Recent developments of thermal energy storage applications in the built environment: A bibliometric analysis and systematic review." Applied Thermal Engineering 189, no. : 116666.

Journal article
Published: 10 November 2020 in Applied Sciences
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An important prerequisite to select a reliable phase change material (PCM) for thermal energy storage applications is to test it under application conditions. In the case of solid–liquid PCM, a large amount of thermal energy can be stored and released in a small temperature range around the solid–liquid phase transition. Therefore, to test the long-term stability of solid–liquid PCM, they are subjected to melting and solidification processes taking into account the conditions of the intended application. In this work, 18 experimental devices to investigate the long-term stability of PCM are presented. The experiments can be divided into thermal cycling stability tests, tests on PCM with stable supercooling, and tests on the stability of phase change slurries (PCS). In addition to these experiments, appropriate methods to investigate a possible degradation of the PCM are introduced. Considering the diversity of the investigated devices and the wide range of experimental parameters, further work toward a standardization of PCM stability testing is recommended.

ACS Style

Christoph Rathgeber; Stefan Hiebler; Rocío Bayón; Luisa Cabeza; Gabriel Zsembinszki; Gerald Englmair; Mark Dannemand; Gonzalo Diarce; Oliver Fellmann; Rebecca Ravotti; Dominic Groulx; Ali Kheirabadi; Stefan Gschwander; Stephan Höhlein; Andreas König-Haagen; Noé Beaupere; Laurent Zalewski. Experimental Devices to Investigate the Long-Term Stability of Phase Change Materials under Application Conditions. Applied Sciences 2020, 10, 7968 .

AMA Style

Christoph Rathgeber, Stefan Hiebler, Rocío Bayón, Luisa Cabeza, Gabriel Zsembinszki, Gerald Englmair, Mark Dannemand, Gonzalo Diarce, Oliver Fellmann, Rebecca Ravotti, Dominic Groulx, Ali Kheirabadi, Stefan Gschwander, Stephan Höhlein, Andreas König-Haagen, Noé Beaupere, Laurent Zalewski. Experimental Devices to Investigate the Long-Term Stability of Phase Change Materials under Application Conditions. Applied Sciences. 2020; 10 (22):7968.

Chicago/Turabian Style

Christoph Rathgeber; Stefan Hiebler; Rocío Bayón; Luisa Cabeza; Gabriel Zsembinszki; Gerald Englmair; Mark Dannemand; Gonzalo Diarce; Oliver Fellmann; Rebecca Ravotti; Dominic Groulx; Ali Kheirabadi; Stefan Gschwander; Stephan Höhlein; Andreas König-Haagen; Noé Beaupere; Laurent Zalewski. 2020. "Experimental Devices to Investigate the Long-Term Stability of Phase Change Materials under Application Conditions." Applied Sciences 10, no. 22: 7968.

Journal article
Published: 06 November 2020 in Applied Sciences
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Integration of a three-media refrigerant/phase change material (PCM)/water heat exchanger (RPW-HEX) in the hot superheated section of a heat pump (HP) system is a promising approach to save energy for domestic hot water (DHW) generation in multi-family houses. The RPW-HEX works as a desuperheater and as a latent thermal energy storage in the system. The latent thermal energy storage is charged during heating and cooling operation and discharged for DHW production. For this purpose, the water side of the RPW-HEX is connected to decentralized DHW storage devices. DHW consumption, building standards and climate, energy prices, material costs, and production costs are the constraints for the selection of the optimal storage size and RPW-HEX design. This contribution presents the techno-economic analysis of the RPW-HEX integrated into an R32 air source HP. With the aid of experimentally validated dynamic computer models, the optimal sizing of the RPW-HEX storage is discussed to maximize energy savings and to minimize the investment costs. The results are discussed in the context of a return of investment analysis, practical implementation aspects and energetic potential of the novel technology.

ACS Style

Johann Emhofer; Klemens Marx; Tilman Barz; Felix Hochwallner; Luisa Cabeza; Gabriel Zsembinszki; Andreas Strehlow; Birgo Nitsch; Michael Wiesflecker; Werner Pink. Techno-Economic Analysis of a Heat Pump Cycle Including a Three-Media Refrigerant/Phase Change Material/Water Heat Exchanger in the Hot Superheated Section for Efficient Domestic Hot Water Generation. Applied Sciences 2020, 10, 7873 .

AMA Style

Johann Emhofer, Klemens Marx, Tilman Barz, Felix Hochwallner, Luisa Cabeza, Gabriel Zsembinszki, Andreas Strehlow, Birgo Nitsch, Michael Wiesflecker, Werner Pink. Techno-Economic Analysis of a Heat Pump Cycle Including a Three-Media Refrigerant/Phase Change Material/Water Heat Exchanger in the Hot Superheated Section for Efficient Domestic Hot Water Generation. Applied Sciences. 2020; 10 (21):7873.

Chicago/Turabian Style

Johann Emhofer; Klemens Marx; Tilman Barz; Felix Hochwallner; Luisa Cabeza; Gabriel Zsembinszki; Andreas Strehlow; Birgo Nitsch; Michael Wiesflecker; Werner Pink. 2020. "Techno-Economic Analysis of a Heat Pump Cycle Including a Three-Media Refrigerant/Phase Change Material/Water Heat Exchanger in the Hot Superheated Section for Efficient Domestic Hot Water Generation." Applied Sciences 10, no. 21: 7873.

Journal article
Published: 05 July 2020 in Applied Sciences
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This paper experimentally investigates the direct integration of 3.15 kg of phase change materials (PCM) into a standard vapour compression system of variable cooling capacity, through an innovative lab-scale refrigerant-PCM-water heat exchanger (RPW-HEX), replacing the conventional evaporator. Its performance was studied in three operating modes: charging, discharging, and direct heat transfer between the three fluids. In the charging mode, a maximum energy of 300 kJ can be stored in the PCM for the cooling capacity at 30% of the maximum value. By doubling the cooling power, the duration of charging is reduced by 50%, while the energy stored is only reduced by 13%. In the discharging mode, the process duration is reduced from 25 min to 9 min by increasing the heat transfer fluid (HTF) flow rate from 50 L·h−1 to 150 L·h−1. In the direct heat transfer mode, the energy stored in the PCM depends on both the cooling power and the HTF flow rate, and can vary from 220 kJ for a cooling power at 30% and HTF flow rate of 50 L·h−1 to 4 kJ for a compressor power at 15% and a HTF flow rate of 150 L·h−1. The novel heat exchanger is a feasible solution to implement latent energy storage in vapour compression systems resulting to a compact and less complex system.

ACS Style

Boniface Dominick Mselle; David Vérez; Gabriel Zsembinszki; Emiliano Borri; Luisa F. Cabeza. Performance Study of Direct Integration of Phase Change Material into an Innovative Evaporator of a Simple Vapour Compression System. Applied Sciences 2020, 10, 4649 .

AMA Style

Boniface Dominick Mselle, David Vérez, Gabriel Zsembinszki, Emiliano Borri, Luisa F. Cabeza. Performance Study of Direct Integration of Phase Change Material into an Innovative Evaporator of a Simple Vapour Compression System. Applied Sciences. 2020; 10 (13):4649.

Chicago/Turabian Style

Boniface Dominick Mselle; David Vérez; Gabriel Zsembinszki; Emiliano Borri; Luisa F. Cabeza. 2020. "Performance Study of Direct Integration of Phase Change Material into an Innovative Evaporator of a Simple Vapour Compression System." Applied Sciences 10, no. 13: 4649.

Review
Published: 16 April 2020 in Applied Sciences
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The increasing penetration of renewable energy has led electrical energy storage systems to have a key role in balancing and increasing the efficiency of the grid. Liquid air energy storage (LAES) is a promising technology, mainly proposed for large scale applications, which uses cryogen (liquid air) as energy vector. Compared to other similar large-scale technologies such as compressed air energy storage or pumped hydroelectric energy storage, the use of liquid air as a storage medium allows a high energy density to be reached and overcomes the problem related to geological constraints. Furthermore, when integrated with high-grade waste cold/waste heat resources such as the liquefied natural gas regasification process and hot combustion gases discharged to the atmosphere, LAES has the capacity to significantly increase the round-trip efficiency. Although the first document in the literature on the topic of LAES appeared in 1974, this technology has gained the attention of many researchers around the world only in recent years, leading to a rapid increase in a scientific production and the realization of two system prototype located in the United Kingdom (UK). This study aims to report the current status of the scientific progress through a bibliometric analysis, defining the hotspots and research trends of LAES technology. The results can be used by researchers and manufacturers involved in this entering technology to understand the state of art, the trend of scientific production, the current networks of worldwide institutions, and the authors connected through the LAES. Our conclusions report useful advice for the future research, highlighting the research trend and the current gaps.

ACS Style

Emiliano Borri; Alessio Tafone; Gabriel Zsembinszki; Gabriele Comodi; Alessandro Romagnoli; Luisa F. Cabeza. Recent Trends on Liquid Air Energy Storage: A Bibliometric Analysis. Applied Sciences 2020, 10, 2773 .

AMA Style

Emiliano Borri, Alessio Tafone, Gabriel Zsembinszki, Gabriele Comodi, Alessandro Romagnoli, Luisa F. Cabeza. Recent Trends on Liquid Air Energy Storage: A Bibliometric Analysis. Applied Sciences. 2020; 10 (8):2773.

Chicago/Turabian Style

Emiliano Borri; Alessio Tafone; Gabriel Zsembinszki; Gabriele Comodi; Alessandro Romagnoli; Luisa F. Cabeza. 2020. "Recent Trends on Liquid Air Energy Storage: A Bibliometric Analysis." Applied Sciences 10, no. 8: 2773.

Journal article
Published: 20 March 2020 in Applied Sciences
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The implementation of thermal energy storage systems using phase change materials to support the integration of renewable energies is a key element that allows reducing the energy consumption in buildings by increasing self-consumption and system efficiency. The selection of the most suitable phase change material is an important part of the successful implementation of the thermal energy storage system. The aim of this paper is to present the methodology used to assess the suitability of potential phase change materials to be used in two innovative energy storage systems, one of them being mainly intended to provide cooling, while the other provides heating and domestic hot water to residential buildings. The selection methodology relies on a qualitative decision matrix, which uses some common features of phase change materials to assign an overall score to each material that should allow comparing the different options. Experimental characterization of the best candidates was also performed to help in making a final decision. The results indicate some of the most suitable candidates for both systems, with RT4 being the most promising commercial phase change material for the system designed to provide cooling, while for the system designed to provide heating and domestic hot water, the most promising candidate is RT64HC, another commercial product.

ACS Style

Gabriel Zsembinszki; Angel G. Fernández; Luisa F. Cabeza. Selection of the Appropriate Phase Change Material for Two Innovative Compact Energy Storage Systems in Residential Buildings. Applied Sciences 2020, 10, 2116 .

AMA Style

Gabriel Zsembinszki, Angel G. Fernández, Luisa F. Cabeza. Selection of the Appropriate Phase Change Material for Two Innovative Compact Energy Storage Systems in Residential Buildings. Applied Sciences. 2020; 10 (6):2116.

Chicago/Turabian Style

Gabriel Zsembinszki; Angel G. Fernández; Luisa F. Cabeza. 2020. "Selection of the Appropriate Phase Change Material for Two Innovative Compact Energy Storage Systems in Residential Buildings." Applied Sciences 10, no. 6: 2116.

Journal article
Published: 18 March 2020 in Energies
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Monitoring of the state of charge of the thermal energy storage component in solar thermal systems for space heating and/or cooling in residential buildings is a key element from the overall system control strategy point of view. According to the literature, there is not a unique method for determining the state of charge of a thermal energy storage system that could generally be applied in any system. This contribution firstly provides a classification of the state-of-the-art of available techniques for the determination of the state of charge, and secondly, it presents an experimental analysis of different methods based on established sensor technologies, namely temperature, mass flow rates, and pressure measurements, tested using a lab-scale heat exchanger filled with a commercial phase change material for cooling applications. The results indicate that, depending on the expected accuracy and available instrumentation, each of the methods studied here can be used in the present application, the deviations between the methods generally being below 20%. This study concludes that a proper combination of two or more of these methods would be the ideal strategy to obtain a more reliable and accurate estimation of the state of charge of the latent heat thermal energy storage.

ACS Style

Gabriel Zsembinszki; Christian Orozco; Jaume Gasia; Tilman Barz; Johann Emhofer; Luisa F. Cabeza. Evaluation of the State of Charge of a Solid/Liquid Phase Change Material in a Thermal Energy Storage Tank. Energies 2020, 13, 1425 .

AMA Style

Gabriel Zsembinszki, Christian Orozco, Jaume Gasia, Tilman Barz, Johann Emhofer, Luisa F. Cabeza. Evaluation of the State of Charge of a Solid/Liquid Phase Change Material in a Thermal Energy Storage Tank. Energies. 2020; 13 (6):1425.

Chicago/Turabian Style

Gabriel Zsembinszki; Christian Orozco; Jaume Gasia; Tilman Barz; Johann Emhofer; Luisa F. Cabeza. 2020. "Evaluation of the State of Charge of a Solid/Liquid Phase Change Material in a Thermal Energy Storage Tank." Energies 13, no. 6: 1425.

Proceedings
Published: 01 January 2020 in Proceedings
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This workshop brought together a selection of H2020 EU-funded projects involving experts from the biomass, geothermal, solar thermal, and heat pump sectors to discuss a common strategy for increasing the use of renewable energy technologies for heating and cooling for buildings and industry.

ACS Style

Andrea Frazzica; Régis Decorme; Marco Calderoni; Alessandra Cuneo; Zuzana Taťáková; Rossano Scoccia; Uli Jakob; Daniel Carbonell; Sotirios Karellas; Eise Spijker; Guglielmo Cioni; Szabolcs Varga; Khamid Mahkamov; Alvaro De Gracia; Gabriel Zsembinszki; Luisa F. Cabeza; Luca Ciccolanti; Valery Vuillerme; Claudia Fabiani. Renewable Heating and Cooling Solutions for Buildings and Industry. Proceedings 2020, 65, 16 .

AMA Style

Andrea Frazzica, Régis Decorme, Marco Calderoni, Alessandra Cuneo, Zuzana Taťáková, Rossano Scoccia, Uli Jakob, Daniel Carbonell, Sotirios Karellas, Eise Spijker, Guglielmo Cioni, Szabolcs Varga, Khamid Mahkamov, Alvaro De Gracia, Gabriel Zsembinszki, Luisa F. Cabeza, Luca Ciccolanti, Valery Vuillerme, Claudia Fabiani. Renewable Heating and Cooling Solutions for Buildings and Industry. Proceedings. 2020; 65 (1):16.

Chicago/Turabian Style

Andrea Frazzica; Régis Decorme; Marco Calderoni; Alessandra Cuneo; Zuzana Taťáková; Rossano Scoccia; Uli Jakob; Daniel Carbonell; Sotirios Karellas; Eise Spijker; Guglielmo Cioni; Szabolcs Varga; Khamid Mahkamov; Alvaro De Gracia; Gabriel Zsembinszki; Luisa F. Cabeza; Luca Ciccolanti; Valery Vuillerme; Claudia Fabiani. 2020. "Renewable Heating and Cooling Solutions for Buildings and Industry." Proceedings 65, no. 1: 16.

Review
Published: 06 September 2018 in Energies
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The aim of this study is to perform a review of the state-of-the-art of the reactors available in the literature, which are used for solid–gas reactions or thermal decomposition processes around 1000 °C that could be further implemented for thermochemical energy storage in CSP (concentrated solar power) plants, specifically for SPT (solar power tower) technology. Both direct and indirect systems can be implemented, with direct and closed systems being the most studied ones. Among direct and closed systems, the most used configuration is the stacked bed reactor, with the fixed bed reactor being the most frequent option. Out of all of the reactors studied, almost 70% are used for solid–gas chemical reactions. Few data are available regarding solar efficiency in most of the processes, and the available information indicates relatively low values. Chemical reaction efficiencies show better values, especially in the case of a fluidized bed reactor for solid–gas chemical reactions, and fixed bed and rotary reactors for thermal decompositions.

ACS Style

Gabriel Zsembinszki; Aran Solé; Camila Barreneche; Cristina Prieto; A. Inés Fernández; Luisa F. Cabeza. Review of Reactors with Potential Use in Thermochemical Energy Storage in Concentrated Solar Power Plants. Energies 2018, 11, 2358 .

AMA Style

Gabriel Zsembinszki, Aran Solé, Camila Barreneche, Cristina Prieto, A. Inés Fernández, Luisa F. Cabeza. Review of Reactors with Potential Use in Thermochemical Energy Storage in Concentrated Solar Power Plants. Energies. 2018; 11 (9):2358.

Chicago/Turabian Style

Gabriel Zsembinszki; Aran Solé; Camila Barreneche; Cristina Prieto; A. Inés Fernández; Luisa F. Cabeza. 2018. "Review of Reactors with Potential Use in Thermochemical Energy Storage in Concentrated Solar Power Plants." Energies 11, no. 9: 2358.

Journal article
Published: 01 July 2018 in International Journal of Refrigeration
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Heat removal is the most extended method for food preservation in food manufacturing industry by lowering food temperatures to stop microorganisms growing, which might spoil the product and could cause toxicity. Therefore, walk-in freezers are used for that purpose consuming a relevant part of the energy on service sector. The compression refrigeration system of the walk-in freezers can be blocked by the frost accumulated on the evaporator. For that reason a defrost process, which requires an important part of the energy consumption, has to be launched from time to time. In this paper, the schedule which manages the defrost process is investigated to limit its activation only when it is necessary. Moreover, different fan operation strategies were tested regarding the energy efficiency of the whole refrigeration system. This study has provided a system control strategy both for defrost and fans operation, depending on the frost built up on the evaporator. The control improves the energy performance of the whole refrigeration system.

ACS Style

Jose Miguel Maldonado; Gabriel Zsembinszki; Alvaro de Gracia; Pere Moreno; Xavier Albets; Miguel Ángel González; Luisa F. Cabeza. Control strategies for defrost and evaporator fans operation in walk-in freezers. International Journal of Refrigeration 2018, 91, 101 -110.

AMA Style

Jose Miguel Maldonado, Gabriel Zsembinszki, Alvaro de Gracia, Pere Moreno, Xavier Albets, Miguel Ángel González, Luisa F. Cabeza. Control strategies for defrost and evaporator fans operation in walk-in freezers. International Journal of Refrigeration. 2018; 91 ():101-110.

Chicago/Turabian Style

Jose Miguel Maldonado; Gabriel Zsembinszki; Alvaro de Gracia; Pere Moreno; Xavier Albets; Miguel Ángel González; Luisa F. Cabeza. 2018. "Control strategies for defrost and evaporator fans operation in walk-in freezers." International Journal of Refrigeration 91, no. : 101-110.

Journal article
Published: 01 March 2017 in Applied Thermal Engineering
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ACS Style

Gabriel Zsembinszki; Alvaro de Gracia; Pere Moreno; Ricard Rovira; Miguel Ángel González; Luisa F. Cabeza. A novel numerical methodology for modelling simple vapour compression refrigeration system. Applied Thermal Engineering 2017, 115, 188 -200.

AMA Style

Gabriel Zsembinszki, Alvaro de Gracia, Pere Moreno, Ricard Rovira, Miguel Ángel González, Luisa F. Cabeza. A novel numerical methodology for modelling simple vapour compression refrigeration system. Applied Thermal Engineering. 2017; 115 ():188-200.

Chicago/Turabian Style

Gabriel Zsembinszki; Alvaro de Gracia; Pere Moreno; Ricard Rovira; Miguel Ángel González; Luisa F. Cabeza. 2017. "A novel numerical methodology for modelling simple vapour compression refrigeration system." Applied Thermal Engineering 115, no. : 188-200.

Conference paper
Published: 01 January 2017 in Proceedings of SWC2017/SHC2017
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ACS Style

Luisa F. Cabeza; Gabriel Zsembinszki. Example of an Innovative Initiative for Education in Thermal Energy Storage: INPATH-TES Project. Proceedings of SWC2017/SHC2017 2017, 1 .

AMA Style

Luisa F. Cabeza, Gabriel Zsembinszki. Example of an Innovative Initiative for Education in Thermal Energy Storage: INPATH-TES Project. Proceedings of SWC2017/SHC2017. 2017; ():1.

Chicago/Turabian Style

Luisa F. Cabeza; Gabriel Zsembinszki. 2017. "Example of an Innovative Initiative for Education in Thermal Energy Storage: INPATH-TES Project." Proceedings of SWC2017/SHC2017 , no. : 1.

Journal article
Published: 01 October 2014 in Energy and Buildings
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ACS Style

Pere Moreno; Albert Castell; Cristian Solé; Gabriel Zsembinszki; Luisa F. Cabeza. PCM thermal energy storage tanks in heat pump system for space cooling. Energy and Buildings 2014, 82, 399 -405.

AMA Style

Pere Moreno, Albert Castell, Cristian Solé, Gabriel Zsembinszki, Luisa F. Cabeza. PCM thermal energy storage tanks in heat pump system for space cooling. Energy and Buildings. 2014; 82 ():399-405.

Chicago/Turabian Style

Pere Moreno; Albert Castell; Cristian Solé; Gabriel Zsembinszki; Luisa F. Cabeza. 2014. "PCM thermal energy storage tanks in heat pump system for space cooling." Energy and Buildings 82, no. : 399-405.