A solar concentrator is a technology that converts direct solar radiation into heat. The parabolic concentrator is the best technology for producing electricity from solar energy, because of its high electrical efficiency, about 41%. This technique is the least mature due to the difficulties related to the storage of produced energy. This work concerns a system of two heat receivers, placed at the focus of the parabolic reflector. These two receivers are a boiler and a Stirling engine. The boiler is intended to heat a thermal fluid that will be stored while Stirling engine will produce electricity directly. We studied the thermal balance and the evolution of the temperature of thermal fluids of Stirling engine and the boiler installed at focal point of reflector. The concentrator used is a parabola with surface of 12.6 m². The simulations were carried out in the vicinity of direct radiation measured at 1 pm o'clock local time. The temperature recorded at the focal point varies from 30°C to 900°C for a duration of 80 seconds; when the direct radiation is about 900W/m². This temperature increases from 30°C to 1050°C, for an operating time of 120s. The average temperature of the three fluids in the receiver (permanent fluid in the boiler, heat transfer fluid to be stored, and thermal fluid of Stirling engine) increases from 30°C to over 400°C in less than 1500s. These thermal fluids at this temperature make it possible to operate turbine through the thermal storage system and Stirling engine, to produce electricity.
| Published in | American Journal of Energy Engineering (Volume 11, Issue 1) |
| DOI | 10.11648/j.ajee.20231101.14 |
| Page(s) | 29-37 |
| 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), 2023. Published by Science Publishing Group |
Parabolic Concentrator, Dual Receiver, Heat Boiler, Stirling Engine
| [1] |
APA Style
Nomao, H. S. D., Boukar, M., Madougou, S. (2023). Energy Balance and Thermal Evolution Analysis of Heat Transfer Fluids of Stirling Engine and Boiler at Focal Point of a Parabolic Solar Concentrator. American Journal of Energy Engineering, 11(1), 29-37. https://doi.org/10.11648/j.ajee.20231101.14
ACS Style
Nomao, H. S. D.; Boukar, M.; Madougou, S. Energy Balance and Thermal Evolution Analysis of Heat Transfer Fluids of Stirling Engine and Boiler at Focal Point of a Parabolic Solar Concentrator. Am. J. Energy Eng. 2023, 11(1), 29-37. doi: 10.11648/j.ajee.20231101.14
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Download@article{10.11648/j.ajee.20231101.14,
author = {Harouna Sani Dan Nomao and Makinta Boukar and Saïdou Madougou},
title = {Energy Balance and Thermal Evolution Analysis of Heat Transfer Fluids of Stirling Engine and Boiler at Focal Point of a Parabolic Solar Concentrator},
journal = {American Journal of Energy Engineering},
volume = {11},
number = {1},
pages = {29-37},
doi = {10.11648/j.ajee.20231101.14},
url = {https://doi.org/10.11648/j.ajee.20231101.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajee.20231101.14},
abstract = {A solar concentrator is a technology that converts direct solar radiation into heat. The parabolic concentrator is the best technology for producing electricity from solar energy, because of its high electrical efficiency, about 41%. This technique is the least mature due to the difficulties related to the storage of produced energy. This work concerns a system of two heat receivers, placed at the focus of the parabolic reflector. These two receivers are a boiler and a Stirling engine. The boiler is intended to heat a thermal fluid that will be stored while Stirling engine will produce electricity directly. We studied the thermal balance and the evolution of the temperature of thermal fluids of Stirling engine and the boiler installed at focal point of reflector. The concentrator used is a parabola with surface of 12.6 m². The simulations were carried out in the vicinity of direct radiation measured at 1 pm o'clock local time. The temperature recorded at the focal point varies from 30°C to 900°C for a duration of 80 seconds; when the direct radiation is about 900W/m². This temperature increases from 30°C to 1050°C, for an operating time of 120s. The average temperature of the three fluids in the receiver (permanent fluid in the boiler, heat transfer fluid to be stored, and thermal fluid of Stirling engine) increases from 30°C to over 400°C in less than 1500s. These thermal fluids at this temperature make it possible to operate turbine through the thermal storage system and Stirling engine, to produce electricity.},
year = {2023}
}
TY - JOUR T1 - Energy Balance and Thermal Evolution Analysis of Heat Transfer Fluids of Stirling Engine and Boiler at Focal Point of a Parabolic Solar Concentrator AU - Harouna Sani Dan Nomao AU - Makinta Boukar AU - Saïdou Madougou Y1 - 2023/03/16 PY - 2023 N1 - https://doi.org/10.11648/j.ajee.20231101.14 DO - 10.11648/j.ajee.20231101.14 T2 - American Journal of Energy Engineering JF - American Journal of Energy Engineering JO - American Journal of Energy Engineering SP - 29 EP - 37 PB - Science Publishing Group SN - 2329-163X UR - https://doi.org/10.11648/j.ajee.20231101.14 AB - A solar concentrator is a technology that converts direct solar radiation into heat. The parabolic concentrator is the best technology for producing electricity from solar energy, because of its high electrical efficiency, about 41%. This technique is the least mature due to the difficulties related to the storage of produced energy. This work concerns a system of two heat receivers, placed at the focus of the parabolic reflector. These two receivers are a boiler and a Stirling engine. The boiler is intended to heat a thermal fluid that will be stored while Stirling engine will produce electricity directly. We studied the thermal balance and the evolution of the temperature of thermal fluids of Stirling engine and the boiler installed at focal point of reflector. The concentrator used is a parabola with surface of 12.6 m². The simulations were carried out in the vicinity of direct radiation measured at 1 pm o'clock local time. The temperature recorded at the focal point varies from 30°C to 900°C for a duration of 80 seconds; when the direct radiation is about 900W/m². This temperature increases from 30°C to 1050°C, for an operating time of 120s. The average temperature of the three fluids in the receiver (permanent fluid in the boiler, heat transfer fluid to be stored, and thermal fluid of Stirling engine) increases from 30°C to over 400°C in less than 1500s. These thermal fluids at this temperature make it possible to operate turbine through the thermal storage system and Stirling engine, to produce electricity. VL - 11 IS - 1 ER -
Laboratory of Energetics and Electronics, Electrical Engineering, Automation, Industrial Computing (LAERT-LA2EI), Abdou Moumouni University, Niamey, Niger; Department of Physics, Faculty of Science and Technology, Abdou Moumouni University, Niamey, Niger
Laboratory of Energetics and Electronics, Electrical Engineering, Automation, Industrial Computing (LAERT-LA2EI), Abdou Moumouni University, Niamey, Niger; Department of Physics, Faculty of Science and Technology, Abdou Moumouni University, Niamey, Niger
