Using Encapsulated Phase Change Salts for Concentrated Solar Power Plant

Mathur, Anoop; Kasetty, Rajan; Oxley, James D.; Méndez, J. Hernández; Nithyanandam, Karthik

doi:10.1016/j.egypro.2014.03.098

Cited by 71 publications

(26 citation statements)

References 2 publications

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“…Industrial application of Zn encapsulations may be easier than Ni but, this needs to be validated by corrosion tests yet, so estimations in Ni are reported here. The calculated estimations are higher than the values published by Terrafore [38] (5 $/kWht) and thus, a further and deeper analysis is required. This needs to be addressed in detail.…”

Section: Inorganic Salt Pcmcontrasting

confidence: 67%

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Encapsulated High Temperature PCM as Active Filler Material in a Thermocline-based Thermal Storage System

et al. 2015

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A great concern in Concentrated Solar Power (CSP) is to boost energy harvesting systems, by finding materials with enhanced thermal performance. Phase Change Materials (PCM) have emerged as a promising option, due to their high thermal storage density compared to sensible storage materials currently used in CSP. A thermal storage system for solar power plants is proposed, a thermocline tank with PCM capsules together with filler materials, based on multi-layered solid-PCM (MLSPCM) thermocline-like storage tank concept [1,2]. A detailed selection of the most suitable high temperature PCM, their containment materials and encapsulation methods are shown. BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer review by the scientific conference committee of SolarPACES 2014 under responsibility of PSE AG 938 B. Muñoz-Sánchez et al. / Energy Procedia 69 ( 2015 ) 937 -946

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Section: Inorganic Salt Pcmcontrasting

confidence: 67%

“…High temperature PCM confinement inside a capsule has been studied so far by a few research groups worldwide [15][16][17][18][19][20][21], though this concept has been still extensively analyzed for low temperature materials.…”

Section: Encapsulation Technologymentioning

confidence: 99%

Encapsulated High Temperature PCM as Active Filler Material in a Thermocline-based Thermal Storage System

et al. 2015

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“…In addition, a packed bed heat exchanger using PCM capsules, which could easily expand the heat transfer area, was also reported. Mathur et al [38] developed new PCM capsules of~5 mm diameter.…”

Section: 3 Applications and Recent Studiesmentioning

confidence: 99%

High-Temperature Latent Heat Storage Technology to Utilize Exergy of Solar Heat and Industrial Exhaust Heat

Nomura

Akiyama

2018

Exergy for a Better Environment and Improved Sustainability 1

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Summary Latent heat storage (LHS) using phase change materials is quite attractive for utilization of the exergy of solar energy and industrial exhaust heat because of its high‐heat storage capacity, heat storage and supply at constant temperature, and repeatable utilization without degradation. In this article, general LHS technology is outlined, and then recent advances in the uses of LHS for high‐temperature applications (over 100 °C) are discussed, with respect to each type of phase change material (e.g., sugar alcohol, molten salt, and alloy). The prospects of future LHS systems are discussed from a principle of exergy recuperation. In addition, the technologies to minimize exergy loss in the future LHS system are discussed on the basis of the thermodynamic analysis by ‘thermodynamic compass’. Copyright © 2016 John Wiley & Sons, Ltd.

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“…The increase in the heat transfer rate between the HTF and PCM by incorporating the PCM mixture inside small capsules, typically of 10-25 mm diameter, is reported in Ref. [13,14]. Nithyanandam and Pitchumani subsequently analyzed the performance of CSP plants working on S-CO2 cycle integrated with heat pipes-embedded LTES and encapsulated PCM based LTES [15].…”

Section: Introductionmentioning

confidence: 97%

Computational Studies on Metal Foam and Heat Pipe Enhanced Latent Thermal Energy Storage

Nithyanandam

Pitchumani

2014

Journal of Heat Transfer

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Thermal energy storage is a distinguishing component of a concentrating solar power (CSP) system, which enables uninterrupted operation of plant during periods of cloudy or intermittent solar availability. Latent thermal energy storage (LTES) which utilizes phase change material (PCM) as a heat storage medium is attractive due to its high energy storage density and low capital cost. However, the low thermal conductivity of the PCM restricts its solidification rate, leading to inefficient heat transfer between the PCM and the heat transfer fluid which carries thermal energy to the power block. To address this limitation, LTES embedded with heat pipes and PCM's stored within the framework of porous metal foam that have one to two orders of magnitude higher thermal conductivity than the PCM are considered in the present study. A transient, computational analysis of the metal foam enhanced LTES system with embedded heat pipes is performed to investigate the enhancement in the thermal performance of the system for different arrangements of heat pipes and design parameters of metal foam, during both charging and discharging operation.

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Using Encapsulated Phase Change Salts for Concentrated Solar Power Plant

Cited by 71 publications

References 2 publications

Encapsulated High Temperature PCM as Active Filler Material in a Thermocline-based Thermal Storage System

Encapsulated High Temperature PCM as Active Filler Material in a Thermocline-based Thermal Storage System

High-Temperature Latent Heat Storage Technology to Utilize Exergy of Solar Heat and Industrial Exhaust Heat

Computational Studies on Metal Foam and Heat Pipe Enhanced Latent Thermal Energy Storage

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