High performance integrated receiver-storage system for concentrating solar power beam-down system

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High performance integrated receiver-storage system for concentrating solar power beam-down system. / Yang, Song; Wang, Jun; Lund, Peter D.; Jiang, Chuan; Li, Xiuxiu.

julkaisussa: Solar Energy, Vuosikerta 187, 15.07.2019, s. 85-94.

Tutkimustuotos: Lehtiartikkeli

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Yang, Song ; Wang, Jun ; Lund, Peter D. ; Jiang, Chuan ; Li, Xiuxiu. / High performance integrated receiver-storage system for concentrating solar power beam-down system. Julkaisussa: Solar Energy. 2019 ; Vuosikerta 187. Sivut 85-94.

Bibtex - Lataa

@article{20e913ed2ccf4f0381a849495d5a1d42,
title = "High performance integrated receiver-storage system for concentrating solar power beam-down system",
abstract = "Concentrating solar power systems (CSP) with thermal storage units can provide dispatchable power. Here we propose a modified design of a cavity receiver combined with a thermocline heat storage unit for the beam-down CSP. Instead of using a separate receiver and heat storage unit, an integrated unit consisting of an extended cylindrical cavity with a packed bed storage is proposed. The new approach was designed using validated cavity radiation and quasi-1D 2-phase numerical heat transfer models. As the concentrated irradiation can be directly absorbed in such a system, the structure used can be simplified and operation of the unit is more effective. A high solar-to-exergy conversion ratio of 0.52 was reached with an optimized design, charging and discharging efficiencies being well beyond 99{\%} and 92{\%} at 770 °C. An important detail in the integrated receiver-storage design was the use of a circulation air flow fan, which enhanced the heat transfer inside the packed bed storage. The proposed design is promising for improving the efficiency and economics of beam down CSP.",
keywords = "Beam-down system, Concentrating solar power, Heat transfer, Packed bed storage, Thermal energy storage, Thermocline",
author = "Song Yang and Jun Wang and Lund, {Peter D.} and Chuan Jiang and Xiuxiu Li",
year = "2019",
month = "7",
day = "15",
doi = "10.1016/j.solener.2019.05.041",
language = "English",
volume = "187",
pages = "85--94",
journal = "Solar Energy",
issn = "0038-092X",

}

RIS - Lataa

TY - JOUR

T1 - High performance integrated receiver-storage system for concentrating solar power beam-down system

AU - Yang, Song

AU - Wang, Jun

AU - Lund, Peter D.

AU - Jiang, Chuan

AU - Li, Xiuxiu

PY - 2019/7/15

Y1 - 2019/7/15

N2 - Concentrating solar power systems (CSP) with thermal storage units can provide dispatchable power. Here we propose a modified design of a cavity receiver combined with a thermocline heat storage unit for the beam-down CSP. Instead of using a separate receiver and heat storage unit, an integrated unit consisting of an extended cylindrical cavity with a packed bed storage is proposed. The new approach was designed using validated cavity radiation and quasi-1D 2-phase numerical heat transfer models. As the concentrated irradiation can be directly absorbed in such a system, the structure used can be simplified and operation of the unit is more effective. A high solar-to-exergy conversion ratio of 0.52 was reached with an optimized design, charging and discharging efficiencies being well beyond 99% and 92% at 770 °C. An important detail in the integrated receiver-storage design was the use of a circulation air flow fan, which enhanced the heat transfer inside the packed bed storage. The proposed design is promising for improving the efficiency and economics of beam down CSP.

AB - Concentrating solar power systems (CSP) with thermal storage units can provide dispatchable power. Here we propose a modified design of a cavity receiver combined with a thermocline heat storage unit for the beam-down CSP. Instead of using a separate receiver and heat storage unit, an integrated unit consisting of an extended cylindrical cavity with a packed bed storage is proposed. The new approach was designed using validated cavity radiation and quasi-1D 2-phase numerical heat transfer models. As the concentrated irradiation can be directly absorbed in such a system, the structure used can be simplified and operation of the unit is more effective. A high solar-to-exergy conversion ratio of 0.52 was reached with an optimized design, charging and discharging efficiencies being well beyond 99% and 92% at 770 °C. An important detail in the integrated receiver-storage design was the use of a circulation air flow fan, which enhanced the heat transfer inside the packed bed storage. The proposed design is promising for improving the efficiency and economics of beam down CSP.

KW - Beam-down system

KW - Concentrating solar power

KW - Heat transfer

KW - Packed bed storage

KW - Thermal energy storage

KW - Thermocline

UR - http://www.scopus.com/inward/record.url?scp=85065837900&partnerID=8YFLogxK

U2 - 10.1016/j.solener.2019.05.041

DO - 10.1016/j.solener.2019.05.041

M3 - Article

VL - 187

SP - 85

EP - 94

JO - Solar Energy

JF - Solar Energy

SN - 0038-092X

ER -

ID: 34202332