The performance of the Solar Tower Receiver (STR) affects significantly the efficiency of the entire solar power generation system and minimizing the heat loss of the STR plays a dominant role in increasing its performance. Unlike the other thermal losses the convective heat loss in STR has direct relation with wind conditions. In this study a Simulation tool ANSYS® FLUENT® was used to determine the convection heat loss in both cavity and externalSTR at wind speed varies from(2) to (10) m/s. A fixed tilt angle (θ= 90°) for the cavity receiver is adopted. The results show that the convection heat loss in both receivers increases with increase of wind speed. The absolute values are considerably lower in the case of the cavity with comparison to the external type. Furthermore, the radiative heat loss in the external and the cavity receivers is investigated. The results show that for the same absorbed area, the radiation loss in the cavity is lower by almost (80%) than the radiation loss in the external.
| Published in | International Journal of Sustainable and Green Energy (Volume 4, Issue 4) |
| DOI | 10.11648/j.ijrse.20150404.15 |
| Page(s) | 159-165 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Solar Tower Receiver, Central Receiver System, Heat loss, CFD
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APA Style
Ramadan Abdiwe, Markus Haider. (2015). Investigations on Heat Loss in Solar Tower Receivers with Wind Speed Variation. International Journal of Sustainable and Green Energy, 4(4), 159-165. https://doi.org/10.11648/j.ijrse.20150404.15
ACS Style
Ramadan Abdiwe; Markus Haider. Investigations on Heat Loss in Solar Tower Receivers with Wind Speed Variation. Int. J. Sustain. Green Energy 2015, 4(4), 159-165. doi: 10.11648/j.ijrse.20150404.15
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Download@article{10.11648/j.ijrse.20150404.15,
author = {Ramadan Abdiwe and Markus Haider},
title = {Investigations on Heat Loss in Solar Tower Receivers with Wind Speed Variation},
journal = {International Journal of Sustainable and Green Energy},
volume = {4},
number = {4},
pages = {159-165},
doi = {10.11648/j.ijrse.20150404.15},
url = {https://doi.org/10.11648/j.ijrse.20150404.15},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijrse.20150404.15},
abstract = {The performance of the Solar Tower Receiver (STR) affects significantly the efficiency of the entire solar power generation system and minimizing the heat loss of the STR plays a dominant role in increasing its performance. Unlike the other thermal losses the convective heat loss in STR has direct relation with wind conditions. In this study a Simulation tool ANSYS® FLUENT® was used to determine the convection heat loss in both cavity and externalSTR at wind speed varies from(2) to (10) m/s. A fixed tilt angle (θ= 90°) for the cavity receiver is adopted. The results show that the convection heat loss in both receivers increases with increase of wind speed. The absolute values are considerably lower in the case of the cavity with comparison to the external type. Furthermore, the radiative heat loss in the external and the cavity receivers is investigated. The results show that for the same absorbed area, the radiation loss in the cavity is lower by almost (80%) than the radiation loss in the external.},
year = {2015}
}
TY - JOUR T1 - Investigations on Heat Loss in Solar Tower Receivers with Wind Speed Variation AU - Ramadan Abdiwe AU - Markus Haider Y1 - 2015/07/07 PY - 2015 N1 - https://doi.org/10.11648/j.ijrse.20150404.15 DO - 10.11648/j.ijrse.20150404.15 T2 - International Journal of Sustainable and Green Energy JF - International Journal of Sustainable and Green Energy JO - International Journal of Sustainable and Green Energy SP - 159 EP - 165 PB - Science Publishing Group SN - 2575-1549 UR - https://doi.org/10.11648/j.ijrse.20150404.15 AB - The performance of the Solar Tower Receiver (STR) affects significantly the efficiency of the entire solar power generation system and minimizing the heat loss of the STR plays a dominant role in increasing its performance. Unlike the other thermal losses the convective heat loss in STR has direct relation with wind conditions. In this study a Simulation tool ANSYS® FLUENT® was used to determine the convection heat loss in both cavity and externalSTR at wind speed varies from(2) to (10) m/s. A fixed tilt angle (θ= 90°) for the cavity receiver is adopted. The results show that the convection heat loss in both receivers increases with increase of wind speed. The absolute values are considerably lower in the case of the cavity with comparison to the external type. Furthermore, the radiative heat loss in the external and the cavity receivers is investigated. The results show that for the same absorbed area, the radiation loss in the cavity is lower by almost (80%) than the radiation loss in the external. VL - 4 IS - 4 ER -
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