Performance testing of an innovative integrated zenithal daylight guide with solar water heater under real-weather conditions
Zenithal Daylight Guides (ZDG) and Solar Water Heaters (SWH) are individual energy-saving solutions utilized across diverse building types. This study proposes an innovative integrated power-saving system, uniting ZDG and SWH into a single model. The integration concept is rooted in leveraging the a...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-10-01
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| Series: | Next Energy |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949821X2400070X |
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| author | Mahmoud Eid El-saggan Ahmed Rekaby Walid Aniss Aissa Ahmed M. Reda |
| author_facet | Mahmoud Eid El-saggan Ahmed Rekaby Walid Aniss Aissa Ahmed M. Reda |
| author_sort | Mahmoud Eid El-saggan |
| collection | DOAJ |
| description | Zenithal Daylight Guides (ZDG) and Solar Water Heaters (SWH) are individual energy-saving solutions utilized across diverse building types. This study proposes an innovative integrated power-saving system, uniting ZDG and SWH into a single model. The integration concept is rooted in leveraging the available space surrounding the daylighting device's pipe to incorporate a solar heater via a serpentine collector. The primary aim of this amalgamation is to optimize solar energy savings, minimize spatial demands, and alleviate manufacturing expenses. Moreover, the impetus behind this study stems from the recent emergence of daytime power outages in Egypt, attributed to heightened consumption surpassing production capacities. The ZDG is still not well known in Egypt. This is the only study until the year 2022/2023 in Aswan, Egypt, that analyzes the performance of this device under extreme sunlight conditions (with maximum global illumination reaching approximately 118 Klux). Across various seasons, the lighting and thermal efficacy of the current model underwent experimental testing and analysis to assess its practical utility. The integrated system effectively elevated the water temperature and achieved adequate light transmission, as indicated by the obtained results. The average transmitted indoor illumination on the work surface reached approximately 2470 lux. The reliance on electrical lighting could be mitigated for up to 5 hours. On the other hand, the highest water temperature and maximum instantaneous efficiency reached are about 70°C and 37%, respectively. Throughout the experiments, the proposed solar heater achieved a maximum daily thermal efficiency of 31.5%. The findings are deemed satisfactory and promising. |
| format | Article |
| id | doaj-art-581e0ef616804d858497a495890ff749 |
| institution | OA Journals |
| issn | 2949-821X |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Energy |
| spelling | doaj-art-581e0ef616804d858497a495890ff7492025-08-20T02:21:04ZengElsevierNext Energy2949-821X2024-10-01510016510.1016/j.nxener.2024.100165Performance testing of an innovative integrated zenithal daylight guide with solar water heater under real-weather conditionsMahmoud Eid El-saggan0Ahmed Rekaby1Walid Aniss Aissa2Ahmed M. Reda3Corresponding author.; Department of Mechanical Power Engineering, Faculty of Energy Engineering, Aswan University, Aswan 81528, EgyptDepartment of Mechanical Power Engineering, Faculty of Energy Engineering, Aswan University, Aswan 81528, EgyptDepartment of Mechanical Power Engineering, Faculty of Energy Engineering, Aswan University, Aswan 81528, EgyptDepartment of Mechanical Power Engineering, Faculty of Energy Engineering, Aswan University, Aswan 81528, EgyptZenithal Daylight Guides (ZDG) and Solar Water Heaters (SWH) are individual energy-saving solutions utilized across diverse building types. This study proposes an innovative integrated power-saving system, uniting ZDG and SWH into a single model. The integration concept is rooted in leveraging the available space surrounding the daylighting device's pipe to incorporate a solar heater via a serpentine collector. The primary aim of this amalgamation is to optimize solar energy savings, minimize spatial demands, and alleviate manufacturing expenses. Moreover, the impetus behind this study stems from the recent emergence of daytime power outages in Egypt, attributed to heightened consumption surpassing production capacities. The ZDG is still not well known in Egypt. This is the only study until the year 2022/2023 in Aswan, Egypt, that analyzes the performance of this device under extreme sunlight conditions (with maximum global illumination reaching approximately 118 Klux). Across various seasons, the lighting and thermal efficacy of the current model underwent experimental testing and analysis to assess its practical utility. The integrated system effectively elevated the water temperature and achieved adequate light transmission, as indicated by the obtained results. The average transmitted indoor illumination on the work surface reached approximately 2470 lux. The reliance on electrical lighting could be mitigated for up to 5 hours. On the other hand, the highest water temperature and maximum instantaneous efficiency reached are about 70°C and 37%, respectively. Throughout the experiments, the proposed solar heater achieved a maximum daily thermal efficiency of 31.5%. The findings are deemed satisfactory and promising.http://www.sciencedirect.com/science/article/pii/S2949821X2400070XZenithal daylight guideSolar water heaterTubular solar collectorPower-saving |
| spellingShingle | Mahmoud Eid El-saggan Ahmed Rekaby Walid Aniss Aissa Ahmed M. Reda Performance testing of an innovative integrated zenithal daylight guide with solar water heater under real-weather conditions Next Energy Zenithal daylight guide Solar water heater Tubular solar collector Power-saving |
| title | Performance testing of an innovative integrated zenithal daylight guide with solar water heater under real-weather conditions |
| title_full | Performance testing of an innovative integrated zenithal daylight guide with solar water heater under real-weather conditions |
| title_fullStr | Performance testing of an innovative integrated zenithal daylight guide with solar water heater under real-weather conditions |
| title_full_unstemmed | Performance testing of an innovative integrated zenithal daylight guide with solar water heater under real-weather conditions |
| title_short | Performance testing of an innovative integrated zenithal daylight guide with solar water heater under real-weather conditions |
| title_sort | performance testing of an innovative integrated zenithal daylight guide with solar water heater under real weather conditions |
| topic | Zenithal daylight guide Solar water heater Tubular solar collector Power-saving |
| url | http://www.sciencedirect.com/science/article/pii/S2949821X2400070X |
| work_keys_str_mv | AT mahmoudeidelsaggan performancetestingofaninnovativeintegratedzenithaldaylightguidewithsolarwaterheaterunderrealweatherconditions AT ahmedrekaby performancetestingofaninnovativeintegratedzenithaldaylightguidewithsolarwaterheaterunderrealweatherconditions AT walidanissaissa performancetestingofaninnovativeintegratedzenithaldaylightguidewithsolarwaterheaterunderrealweatherconditions AT ahmedmreda performancetestingofaninnovativeintegratedzenithaldaylightguidewithsolarwaterheaterunderrealweatherconditions |