Characterization of a micro thermal cavity receiver – experimental and analytical investigation

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Characterization of a micro thermal cavity receiver – experimental and analytical investigation. / Daabo, Ahmed M.; Bellos, Evangelos; Pavlovic, Sasa; Bashir, Muhammad Anser; Mahmoud, Saad; Al-dadah, Raya K.

In: Thermal Science and Engineering Progress, Vol. 18, 100554, 01.08.2020.

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@article{918c6d7135034517a3fb18026ad71b11,
title = "Characterization of a micro thermal cavity receiver – experimental and analytical investigation",
abstract = "The objective of this work is to characterize the optical and thermal performance of a micro-scale cylindrical cavity solar receiver for the Brayton gas power cycle at various solar radiation levels through experimental and analytical investigation. A thermal receiver consisting of a 300 mm deep and 200 mm diameter cylindrical cavity equipped with an 8 mm diameter helical copper tube was studied. An advanced ray-tracing technique using OptisWorks software was used to predict the distribution of solar radiation inside the cavity. Also, computational fluid dynamics simulations were carried out using ANSYS CFD software to predict the temperature distributions of the coil surface and the compressed air outlet temperature. Having satisfying conformity between the numerical and the experimental results, the current results demonstrated that a competent flux and temperature distributions were directed on the receiver{\textquoteright}s tube. Moreover, an outlet temperature up to 70 °C, based on the available compressed air flow rate. This point leads to the probability of operating a micro-scale dish concentrator for Concentrated Solar Power in a domestic application. The results of a parametric study indicated that a cavity{\textquoteright}s receiver depth and width of 180 mm and 240 mm give the best thermal operation.",
keywords = "Solar thermal dish, Micro-scale, Optical analysis, Cavity receiver, Thermal analysis",
author = "Daabo, {Ahmed M.} and Evangelos Bellos and Sasa Pavlovic and Bashir, {Muhammad Anser} and Saad Mahmoud and Al-dadah, {Raya K.}",
year = "2020",
month = aug,
day = "1",
doi = "10.1016/j.tsep.2020.100554",
language = "English",
volume = "18",
journal = "Thermal Science and Engineering Progress",
issn = "2451-9049",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Characterization of a micro thermal cavity receiver – experimental and analytical investigation

AU - Daabo, Ahmed M.

AU - Bellos, Evangelos

AU - Pavlovic, Sasa

AU - Bashir, Muhammad Anser

AU - Mahmoud, Saad

AU - Al-dadah, Raya K.

PY - 2020/8/1

Y1 - 2020/8/1

N2 - The objective of this work is to characterize the optical and thermal performance of a micro-scale cylindrical cavity solar receiver for the Brayton gas power cycle at various solar radiation levels through experimental and analytical investigation. A thermal receiver consisting of a 300 mm deep and 200 mm diameter cylindrical cavity equipped with an 8 mm diameter helical copper tube was studied. An advanced ray-tracing technique using OptisWorks software was used to predict the distribution of solar radiation inside the cavity. Also, computational fluid dynamics simulations were carried out using ANSYS CFD software to predict the temperature distributions of the coil surface and the compressed air outlet temperature. Having satisfying conformity between the numerical and the experimental results, the current results demonstrated that a competent flux and temperature distributions were directed on the receiver’s tube. Moreover, an outlet temperature up to 70 °C, based on the available compressed air flow rate. This point leads to the probability of operating a micro-scale dish concentrator for Concentrated Solar Power in a domestic application. The results of a parametric study indicated that a cavity’s receiver depth and width of 180 mm and 240 mm give the best thermal operation.

AB - The objective of this work is to characterize the optical and thermal performance of a micro-scale cylindrical cavity solar receiver for the Brayton gas power cycle at various solar radiation levels through experimental and analytical investigation. A thermal receiver consisting of a 300 mm deep and 200 mm diameter cylindrical cavity equipped with an 8 mm diameter helical copper tube was studied. An advanced ray-tracing technique using OptisWorks software was used to predict the distribution of solar radiation inside the cavity. Also, computational fluid dynamics simulations were carried out using ANSYS CFD software to predict the temperature distributions of the coil surface and the compressed air outlet temperature. Having satisfying conformity between the numerical and the experimental results, the current results demonstrated that a competent flux and temperature distributions were directed on the receiver’s tube. Moreover, an outlet temperature up to 70 °C, based on the available compressed air flow rate. This point leads to the probability of operating a micro-scale dish concentrator for Concentrated Solar Power in a domestic application. The results of a parametric study indicated that a cavity’s receiver depth and width of 180 mm and 240 mm give the best thermal operation.

KW - Solar thermal dish

KW - Micro-scale

KW - Optical analysis

KW - Cavity receiver

KW - Thermal analysis

U2 - 10.1016/j.tsep.2020.100554

DO - 10.1016/j.tsep.2020.100554

M3 - Article

VL - 18

JO - Thermal Science and Engineering Progress

JF - Thermal Science and Engineering Progress

SN - 2451-9049

M1 - 100554

ER -