Computational evaluation of a latent heat energy storage system

Reid, Michael R.; Scharfe, David B.; Webb, Rebecca N.

doi:10.1016/j.solener.2013.06.010

Cited by 19 publications

(9 citation statements)

References 16 publications

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“…Five casing designs, cube, truncated cone, sphere, half sphere and cylinder, all with the same volume and emitter surface, i.e. 0.03375 m 3 Figure 4 we observe that there is a significant effect of the casing shape on the PCM melting process. As expected, the melting process is the slowest in the sphere (~40 minutes) and the fastest in the cube and truncated cone (~ 26-28 min), due to the lower surface to volume ratios in the sphere case.…”

Section: Heat Transfer Analysis In the Pcmmentioning

confidence: 89%

AMADEUS: Next generation materials and solid state devices for ultra high temperature energy storage and conversion

Datas¹,

Cristóbal²,

Cañizo³

et al. 2018

AIP Conference Proceedings

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Starting in January 2017, AMADEUS (www.amadeus-project.eu) is the first project funded by the European Commission to research on a new generation of materials and solid state devices for ultra-high temperature energy storage and conversion. By exploring storage temperatures well beyond 1000 ºC the project aims at breaking the mark of ~ 600ºC rarely exceeded by current state of the art thermal energy storage (TES) systems. AMADEUS Project, through a collaborative research between seven European partners, aims to develop a novel concept of latent heat thermal energy storage (LHTES) systems with unprecedented high energy density. One of the main objectives of the project is to create new PCMs (phase change materials) with latent heat in the range of 1000-2000 kWh/m 3 , an order of magnitude greater than that of typical salt-based PCMs used in concentrated solar power (CSP), along with developing advanced thermal insulation, PCM casing designs, and novel solid-state heat to power conversion technologies able to operate at temperatures in the range of 1000-2000 ºC. In particular, the project will investigate Silicon-Boron alloys as PCMs and hybrid thermionic-photovoltaic (TIPV) devices for heat-to-power conversion. This paper describes the project R&D activities and the main results that have been attained during the first 6 months of work. This includes the first wettability and solubility analysis of liquid Si-B alloys, the numerical simulation of silicon phase-change and heat loss analysis through thermal insulation cover, as well as the first steps for the realization of the two main AMADEUS proof-ofconcept experiments: the TIPV converter, and the full LHTES device.

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Section: Heat Transfer Analysis In the Pcmmentioning

confidence: 89%

AMADEUS: Next generation materials and solid state devices for ultra high temperature energy storage and conversion

Datas¹,

Cristóbal²,

Cañizo³

et al. 2018

AIP Conference Proceedings

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“…Concurrently with the in-house MATLAB model, a COMSOL Multiphysics model using the same experimental geometry was developed at the University of Colorado Colorado Springs. 32,33 This model uses the "temperature transforming method" to account for the phase change process altering the specific heat of the PCM material within the "mushy zone" so that the resultant sensible heat cooling calculated by the simulation program accounts for the energy released during solidification. Like the in-house MATLAB model, the COMSOL model neglects density change, partially assumes isotropic material properties, assumes a 100% silicon fill factor, and considers radation shielding from the vacuum chamber.…”

Section: Computational Analysismentioning

confidence: 99%

Experimental Investigation of Latent Heat Thermal Energy Storage for Bi-Modal Solar Thermal Propulsion

Gilpin

Scharfe

Young

et al. 2014

12th International Energy Conversion Engineering Conference

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“…These PCMs have the advantage of presenting a high melting point (>1000 o C), high thermal conductivity and latent heat of fusion which can potentially lead to greater energy densities than the ones achieved in low temperature systems [25,26]. It is a newly developed concept under on-going research which has been studied in previous work through experimental and theoretical studies including both steady-state and dynamic numerical simulations [26][27][28][29][30][31]. So far, studies have been focused on the proof of concept, optimization of characteristics (geometry, material etc.…”

Section: Introductionmentioning

confidence: 99%

“…Our recent study was focused on the thermal performance of a PV-powered UHT-TES system combined with a TIPV converter and its integration with a residential building within a 24 hour period [31]. The scope of this paper is to further investigate the application of such a system in the residential sector and to compare its performance with similar schemes.…”

Section: Introductionmentioning

confidence: 99%

Dynamic modeling and energy analysis of renewable heating and electricity systems at residential buildings using phase change material based heat storage technologies

Violidakis

Ατσόνιος

Iliadis

et al. 2020

Journal of Energy Storage

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Several heat storage systems for domestic application can be used to promote Renewable Energy Sources (RES) penetration by storing excess energy, which would otherwise be rejected during curtailments. The present study investigates two types of PV powered latent heat storage technologies for delivering heat and/or electricity at residential buildings and compares them against a reference case which uses a conventional heat pump as a heating system, also powered by a PV. One technology involves a low temperature PCM thermal energy storage system (LT-TES) heated by either an electric resistance or a heat pump and the other technology involves an ultra-high temperature TES (UHT-TES). It is revealed that any case with heat storage is preferable for better exploiting the produced renewable energy than the conventional one which does not include heat storage. The most favorable from this aspect are the cases which include the UHT-TES, which provide both heat and electricity. Focusing exclusively on heat supply, the most preferable case from a technical performance aspect is the one which includes a heat pump and a LT-TES system, albeit not providing any electricity. On the other hand, the most advantageous only in terms of electricity supply is the case which includes the UHT-TES system.

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Computational evaluation of a latent heat energy storage system

Cited by 19 publications

References 16 publications

AMADEUS: Next generation materials and solid state devices for ultra high temperature energy storage and conversion

AMADEUS: Next generation materials and solid state devices for ultra high temperature energy storage and conversion

Experimental Investigation of Latent Heat Thermal Energy Storage for Bi-Modal Solar Thermal Propulsion

Dynamic modeling and energy analysis of renewable heating and electricity systems at residential buildings using phase change material based heat storage technologies

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