A novel empirical heat transfer model for a solar thermal storage process using phase change materials

Bie, Yu; Li, Ming; Chen, Fei; Królczyk, Grzegorz; Yang, Lin; Li, Zhixiong; Li, Weihua

doi:10.1016/j.energy.2018.11.107

Cited by 11 publications

(2 citation statements)

References 34 publications

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“…Latent heat storage uses phase change materials (PCMs) [18,19]. LCM is used as a heat transfer media or energy storage media, which has wide applications due to their higher heat accumulation capacity [20,21]. In a solar storage system, the main factors are collection and conversion efficiencies.…”

Section: Introductionmentioning

confidence: 99%

Reactor Design and Thermal Performance Analysis for Solar Thermal Energy Storage Application

Dessie

Lougou

et al. 2020

Energies

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Solar energy is a sustainable and low-cost renewable energy of enormous importance, especially at this time where non-renewable energy sources are unsustainable and costly. However, improving the thermal performance of a solar energy storage reactor poses some challenges. In this study, the location of fluid inlets and outlets in the given reactor design and its impact on the thermal performance were investigated. A P1 approximation radiation model coupled with shallow channel approximation of fluid flow was developed. By taking the frustum base as a reference, four fluid inlets along the edges of the frustum and two outlet locations at the base and side of the reactor were computed. Inlets located 4.81 cm from the base of the frustum and an outlet located at the side of the reactor were found to have a better thermal performance with a short conveyer energy flow system. It was also deduced that radiation applied at the edges of the frustum had better thermal performance than that applied at a quartz edge. Furthermore, increasing the laminar inflow rate from 0.36 (L/h) to 3.6 (L/h) increased the temperature distribution in the reactor. This study provides noteworthy insights of relevance to the power engineering industry and academia.

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Section: Introductionmentioning

confidence: 99%

Reactor Design and Thermal Performance Analysis for Solar Thermal Energy Storage Application

Dessie

Lougou

et al. 2020

Energies

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“…In general, the storage system in the energy field has three contributions: sensible heat, latent heat, and chemical storage. Latent heat storage, which uses phase change materials (PCMs) as the heat transfer media or storage media, has more widely application due to their higher latent heat capacity [7,8]. For example, solid-liquid PCMs and molten salt PCMs have already been utilized in different fields.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Microstructure of Potassium Nitrate/Sodium Nitrate Composites for Solar Storage System

Mao

Liu

et al. 2019

Advances in Materials Science and Engineering

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The performance of the material is determined by its structure, i.e., the composition of the material elements of the atomic structure, the molecular structure, and atoms or molecules in space arrangement and the aggregation characteristics. The microstructure of the material has important implications for the material performance. In this paper, five phase change materials, potassium nitrate, sodium nitrate, and the composites of KNO3-NaNO3/graphite (3%, 6%, and 9%), have been studied by the experiment, and the aim is to improve the storage performance of the solar storage system. The results show that potassium nitrate and sodium nitrate are significantly different in microstructure, that is, potassium nitrate is a layered structure and the sodium nitrate is a network structure. And, the graphite as additives can be physically combined with the molten salts, which leads to a different performance and distribution in the mixture. Therefore, it is an effective method in improving the performance of molten salts by using graphite as the supporting material. The results can provide a reference to future choose for solar storage materials.

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Experimental investigation of different-shaped microwave-heated potatoes: thermal and quality characteristics analysis for food preservation

Singh

Singh²,

Patel

et al. 2022

Environ Sci Pollut Res

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A novel empirical heat transfer model for a solar thermal storage process using phase change materials

Cited by 11 publications

References 34 publications

Reactor Design and Thermal Performance Analysis for Solar Thermal Energy Storage Application

Reactor Design and Thermal Performance Analysis for Solar Thermal Energy Storage Application

Investigation on Microstructure of Potassium Nitrate/Sodium Nitrate Composites for Solar Storage System

Experimental investigation of different-shaped microwave-heated potatoes: thermal and quality characteristics analysis for food preservation

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