Development of Space Heating and Domestic Hot Water Systems with Compact Thermal Energy Storage

Davidson, Jane H.; Quinnell, Josh A.; Burch, Jay; Zondag, H.A.; Boer, R. de; Finck, C.; Cuypers, Ruud; Cabeza, Luisa F.; Heinz, Andreas; Jahnig, Dagmar; Furbo, Simon; Bertsch, Florian

doi:10.18777/ieashc-task42-2013-0001

Cited by 7 publications

(8 citation statements)

References 19 publications

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“…Energy is extracted as water is reabsorbed and/or the solution is cooled (142). The energy density of the material, which is dependent on how the tank is discharged, is 106 kWh/m 3 , similar to that of LiCl for the same operating parameters (98). Computational results showed that buoyancy driven flow induced by the presence of an immersed heat ex-changer is sufficient to heat and thermally stratify the storage fluid (142).…”

Section: Liquid Absorption Materialsmentioning

confidence: 94%

“…CaCl 2 -based system behaviour was analysed by Davidson et al (98) for its use as liquid desiccant in an atmospheric-pressure chiller. Solar energy is stored in a liquid CaCl 2 volume by heating the solution and vaporizing H 2 O.…”

Section: Liquid Absorption Materialsmentioning

confidence: 99%

“…Composite materials usually consist of salt hydrates and an additive with a porous structure that works as host matrix with high thermal conductivity to improve the reaction rate and the heat release. Most studied materials to be used as additive are zeolites (98,153,162), metal foam (154,163), expanded graphite (164)(165)(166) and activated carbon (167). Table 23 shows the main properties of several composite materials for energy storage.…”

Section: Composite Materialsmentioning

confidence: 99%

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Identification of best available thermal energy storage compounds for low-to-moderate temperature storage applications in buildings

et al. 2018

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Over the last 40 years different thermal energy storage materials have been investigated with the aim of enhancing energy efficiency in buildings, improving systems performance, and increasing the share of renewable energies. However, the main requirements for their efficient implementation are not fully met by most of them. This paper develops a comparative review of thermophysical properties of materials reported in the literature. The results show that the highest volumetric storage capacities for the best available sensible, latent and thermochemical storage materials are 250 MJ/m3, 514 MJ/m3 and 2000 MJ/m3, respectively, corresponding to water, barium hydroxide octahydrate, and magnesium chloride hexahydrate. A group of salt hydrates and inorganic eutectics have been identified as the most promising for the development of competitive thermal storage materials for cooling, heating and comfort applications in the short-term. In the long-term, thermochemical storage materials seem promising. However, additional research efforts are required.

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Section: Liquid Absorption Materialsmentioning

confidence: 94%

Section: Liquid Absorption Materialsmentioning

confidence: 99%

Section: Composite Materialsmentioning

confidence: 99%

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Identification of best available thermal energy storage compounds for low-to-moderate temperature storage applications in buildings

et al. 2018

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“… Thermochemical heat storage relies on the use of a source of heat to induce a reversible chemical reaction and/or sorption process [17,18]. The potential benefits of these storage systems is their rather high energy density (approximately 1000 MJ/m 3 [6]), negligible heat loss, and long-term heat availability [19].…”

Section: Overview Classification Of Thermal Energy Storage Materials and Their Applicationsmentioning

confidence: 99%

Advances in thermal energy storage materials and their applications towards zero energy buildings: A critical review

et al. 2017

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“…This stored heat is then used during peak electrical load times to decrease the amount of electricity used by the household. Specific components and operations are required in active PCM systems in order to charge and discharge storage vessels before they can be used in conventional heating/cooling systems [34]. Electrical units such as pumps and fans are used to distribute the energy released by the PCMs around the residential building.…”

Section: Pcm Applicationsmentioning

confidence: 99%

PCMs for Residential Building Applications: A Short Review Focused on Disadvantages and Proposals for Future Development

et al. 2017

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Phase change materials (PCMs) offer great potential as a latent heat energy storage technique to provide energy efficient systems in new and existing residential buildings. Due to their unique characteristic of high storage densities and latent heat properties, PCMs provide opportunities for greater energy storage in many applications for residential buildings. These applications include, but are not limited to, solar water heating, space heating/cooling, and waste heat recovery. This study reviews PCM systems in residential building applications, with a focus on their major disadvantages and concludes with proposals for future development. Several disadvantages of PCM use in the given application have been identified and include; super cooling, low thermal conductivity, phase segregation, fire safety, and cost. The issues caused by super cooling and phase segregation lead to thermal cycling degradation, limiting the useful lifecycle of the material. These issues could limit their potential in building applications, which require systems of a long lifespan. Low thermal conductivities can slow down the rate at which heat is distributed or absorbed from the building, which affect the occupants comfort and as well as the efficiency of the system. Ideas based on the current research on ways to limit these disadvantages are included in the study. This study also identifies that further research is required on novel maintenance ways for the PCM systems after they have been installed.

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Development of Space Heating and Domestic Hot Water Systems with Compact Thermal Energy Storage

Cited by 7 publications

References 19 publications

Identification of best available thermal energy storage compounds for low-to-moderate temperature storage applications in buildings

Identification of best available thermal energy storage compounds for low-to-moderate temperature storage applications in buildings

Advances in thermal energy storage materials and their applications towards zero energy buildings: A critical review

PCMs for Residential Building Applications: A Short Review Focused on Disadvantages and Proposals for Future Development

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