Selection of phase change materials for high temperature latent heat thermal energy storage for concentrated solar power plants

Jayathunga, Darsha; Karunathilake, Hirushie; Narayana, Mahinsasa; Witharana, Sanjeeva

doi:10.1109/mercon55799.2022.9906235

Cited by 2 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These include noncorrosiveness, chemical stability, low ability to undercooling and phase separation, recyclability, and cost‐effectiveness. [ 13 ] They are widely used in various fields, such as constructions, [ 6 ] concentrated solar power systems, [ 14 ] photovoltaic–thermal systems, [ 15 ] battery thermal management, [ 16–18 ] and textiles. [ 19 ] However, solid–liquid PCMs, especially organic PCMs, still face challenges such as difficulty in shaping, leakage, and low thermal conductivity, which restrict their applications.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Thermal Performances of Lauric Acid/Polyvinyl Butyral/Graphene Nanoplates Composite Phase Change Materials

Wang,

Fu,

Fang

2024

Physica Status Solidi (a)

View full text Add to dashboard Cite

In recent years, there has been significant progress in the development and application of phase change materials (PCMs) for thermal energy storage. The new lauric acid (LA)/polyvinyl butyral (PVB)/graphene nanoplates (GNP) composite phase change materials (CPCM) are prepared using the solution blending method, in which LA acts as PCM, PVB serves as support material, and GNP is used as thermally conductive enhancer. The prepared CPCM with 80 wt% LA can retain stable shape without leakage. The Fourier‐transform infrared and X‐ray diffractometer results indicate that there is no chemical reaction among the various components of the CPCM. The differential scanning calorimeter results show the CPCM3 (with 80 wt% LA and 5 wt% GNP) has melting latent heat of 134.41 KJ Kg−1 with melting temperature of 41.73 °C. The thermal conductivity tests present that thermal conductivity of CPCM3 is 0.689 W (m K)−1, which is 3.83 times that of the PCM2. The thermogravimetric analyzer results verify that the CPCM possess good thermal stability within the operating temperature range of 35–45 °C without any degradation. The thermal cycling tests indicate that CPCM have good thermal reliability. Therefore, it has promising applications in building energy conservation, solar thermal systems, thermal management, and textiles.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and Thermal Performances of Lauric Acid/Polyvinyl Butyral/Graphene Nanoplates Composite Phase Change Materials

Wang,

Fu,

Fang

2024

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

Economic Feasibility of Thermal Energy Storage-Integrated Concentrating Solar Power Plants

Jayathunga

Weliwita

Karunathilake

et al. 2023

Solar

View full text Add to dashboard Cite

Concentrating solar power (CSP) is a high-potential renewable energy source that can leverage various thermal applications. CSP plant development has therefore become a global trend. However, the designing of a CSP plant for a given solar resource condition and financial situation is still a work in progress. This study aims to develop a mathematical model to analyze the levelized cost of electricity (LCOE) of Thermal Energy Storage (TES)-integrated CSP plants in such circumstances. The developed model presents an LCOE variation for 18 different CSP configurations with TES incorporated for Rankine, Brayton, and combined power generation cycles, under regular TES materials and nano-enhanced TES materials. The model then recommends the most economical CSP plant arrangement. Within the scope of this study, it was found that the best configuration for electricity generation is a solar power tower with nano-enhanced phase change materials as the latent heat thermal energy storage medium that runs on the combined cycle. This returns an LCOE of 7.63 ct/kWh with a 22.70% CSP plant efficiency. The most favorable option in 50 MW plants is the combined cycle with a regular TES medium, which has an LCOE of 7.72 ct/kWh with a 22.14% CSP plant efficiency.

show abstract

Selection of phase change materials for high temperature latent heat thermal energy storage for concentrated solar power plants

Cited by 2 publications

References 19 publications

Preparation and Thermal Performances of Lauric Acid/Polyvinyl Butyral/Graphene Nanoplates Composite Phase Change Materials

Preparation and Thermal Performances of Lauric Acid/Polyvinyl Butyral/Graphene Nanoplates Composite Phase Change Materials

Economic Feasibility of Thermal Energy Storage-Integrated Concentrating Solar Power Plants

Contact Info

Product

Resources

About