Experimental and Theoretical Study of Parabolic Trough Solar Collector Performance Without Automatic Tracking System
In this research, a practical and theoretical study was conducted to evaluate the performance of parabolic trough collectors (PTCS) of length (3 m) and width (2.67 m) for three solar collectors connected in parallel, and the absorber tube is made of stainless steel with an internal and external diam...
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| Format: | Article |
| Language: | English |
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University of Anbar
2021-06-01
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| Series: | مجلة جامعة الانبار للعلوم الصرفة |
| Subjects: | |
| Online Access: | https://juaps.uoanbar.edu.iq/article_172430_99809e3a83d450a630355bb254481e08.pdf |
| _version_ | 1827396158596579328 |
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| author | Khudir Zarrag Fayadh M. Abed Salim. Y. Kasim |
| author_facet | Khudir Zarrag Fayadh M. Abed Salim. Y. Kasim |
| author_sort | Khudir Zarrag |
| collection | DOAJ |
| description | In this research, a practical and theoretical study was conducted to evaluate the performance of parabolic trough collectors (PTCS) of length (3 m) and width (2.67 m) for three solar collectors connected in parallel, and the absorber tube is made of stainless steel with an internal and external diameter (0.028 m), (0.031 m), respectively. The absorber tube of length 11 m, was painted with un shiny black paint to increase the absorption of sunlight and reduces the thermal radiation. The working fluid is transferred through the receiver tube and located at the focus area of the three collectors. The collector width aperture width was 0.8 meters, and 2.40 meters length with rim angle of Ø = 90°, and concentration ratio of 8.02. The collector surface was covered with aluminum foil which is available in the local market (3M SA-85), which covers galvanized iron sheets with a thickness of 2 mm. A computer program in Fortran language was built to calculate the performance of the solar collector. Experimental results of the test showed that the performance factor of the solar collector is less than the typical type, where notes that there is a large deviation between the theoretical and experimental results, especially in the winter, where the deviation in the morning at ten o'clock about 78%, while it was 5% at noon. The large deviation value mentioned resulting from the assumptions that have been developed to simplify the equations that were used in the theoretical side of research, also the reasons that the theoretical results are taken on the assumption that weather conditions are clear sky and that contrary to reality in the winter. ةThe best efficiency of the solar collector was between solar time (12:00) and time (1:00) at night for two seasons, and the obtained results showed that the increase of mass flow rate of fluid from the amount of (0.033) kg/sec to the amount of (0.066) kg/sec increases the efficiency of solar collector, but leads to reduce the temperature difference between the inlet and exit, as well as the results showed that an increase in solar flux increases the useful energy obtained from the solar collector. |
| first_indexed | 2024-03-08T18:46:45Z |
| format | Article |
| id | doaj.art-2f67a79f4ae84f729e35a6640cb1610a |
| institution | Directory Open Access Journal |
| issn | 1991-8941 2706-6703 |
| language | English |
| last_indexed | 2024-03-08T18:46:45Z |
| publishDate | 2021-06-01 |
| publisher | University of Anbar |
| record_format | Article |
| series | مجلة جامعة الانبار للعلوم الصرفة |
| spelling | doaj.art-2f67a79f4ae84f729e35a6640cb1610a2023-12-28T22:00:54ZengUniversity of Anbarمجلة جامعة الانبار للعلوم الصرفة1991-89412706-67032021-06-01151374810.37652/juaps.2022.172430172430Experimental and Theoretical Study of Parabolic Trough Solar Collector Performance Without Automatic Tracking SystemKhudir Zarrag0Fayadh M. Abed1Salim. Y. Kasim2Anbar Sewer Directorate, Anbar Province, Ramadi, IraqDepartment of Mechanical Engineering, Faculty of Engineering, Tikrit University, Tikrit, IraqDepartment of Mechanical Engineering, Faculty of Engineering, Tikrit University, Tikrit, IraqIn this research, a practical and theoretical study was conducted to evaluate the performance of parabolic trough collectors (PTCS) of length (3 m) and width (2.67 m) for three solar collectors connected in parallel, and the absorber tube is made of stainless steel with an internal and external diameter (0.028 m), (0.031 m), respectively. The absorber tube of length 11 m, was painted with un shiny black paint to increase the absorption of sunlight and reduces the thermal radiation. The working fluid is transferred through the receiver tube and located at the focus area of the three collectors. The collector width aperture width was 0.8 meters, and 2.40 meters length with rim angle of Ø = 90°, and concentration ratio of 8.02. The collector surface was covered with aluminum foil which is available in the local market (3M SA-85), which covers galvanized iron sheets with a thickness of 2 mm. A computer program in Fortran language was built to calculate the performance of the solar collector. Experimental results of the test showed that the performance factor of the solar collector is less than the typical type, where notes that there is a large deviation between the theoretical and experimental results, especially in the winter, where the deviation in the morning at ten o'clock about 78%, while it was 5% at noon. The large deviation value mentioned resulting from the assumptions that have been developed to simplify the equations that were used in the theoretical side of research, also the reasons that the theoretical results are taken on the assumption that weather conditions are clear sky and that contrary to reality in the winter. ةThe best efficiency of the solar collector was between solar time (12:00) and time (1:00) at night for two seasons, and the obtained results showed that the increase of mass flow rate of fluid from the amount of (0.033) kg/sec to the amount of (0.066) kg/sec increases the efficiency of solar collector, but leads to reduce the temperature difference between the inlet and exit, as well as the results showed that an increase in solar flux increases the useful energy obtained from the solar collector.https://juaps.uoanbar.edu.iq/article_172430_99809e3a83d450a630355bb254481e08.pdfparabolic trough collectorthermal collector performancesolar energy |
| spellingShingle | Khudir Zarrag Fayadh M. Abed Salim. Y. Kasim Experimental and Theoretical Study of Parabolic Trough Solar Collector Performance Without Automatic Tracking System مجلة جامعة الانبار للعلوم الصرفة parabolic trough collector thermal collector performance solar energy |
| title | Experimental and Theoretical Study of Parabolic Trough Solar Collector Performance Without Automatic Tracking System |
| title_full | Experimental and Theoretical Study of Parabolic Trough Solar Collector Performance Without Automatic Tracking System |
| title_fullStr | Experimental and Theoretical Study of Parabolic Trough Solar Collector Performance Without Automatic Tracking System |
| title_full_unstemmed | Experimental and Theoretical Study of Parabolic Trough Solar Collector Performance Without Automatic Tracking System |
| title_short | Experimental and Theoretical Study of Parabolic Trough Solar Collector Performance Without Automatic Tracking System |
| title_sort | experimental and theoretical study of parabolic trough solar collector performance without automatic tracking system |
| topic | parabolic trough collector thermal collector performance solar energy |
| url | https://juaps.uoanbar.edu.iq/article_172430_99809e3a83d450a630355bb254481e08.pdf |
| work_keys_str_mv | AT khudirzarrag experimentalandtheoreticalstudyofparabolictroughsolarcollectorperformancewithoutautomatictrackingsystem AT fayadhmabed experimentalandtheoreticalstudyofparabolictroughsolarcollectorperformancewithoutautomatictrackingsystem AT salimykasim experimentalandtheoreticalstudyofparabolictroughsolarcollectorperformancewithoutautomatictrackingsystem |