Parametric Study of Active Solar Heating Using a Pebble Bed as a Thermal Collector and Storage Unit
In this study, pebble bed as an absorber and storage material was placed in a south facing, flat plate air-type solar collector at fixed tilt angle of (45°). The effect of this material and differ- ent parameters on collector efficiency has been investigated experimentally and theoretically. Two o...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2023-07-01
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| Series: | Journal of Engineering |
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| Online Access: | https://joe.uobaghdad.edu.iq/index.php/main/article/view/2544 |
| _version_ | 1827903827326533632 |
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| author | Saad Mohsen Saleh Mustafa Mahdi Mustafa Alaskari |
| author_facet | Saad Mohsen Saleh Mustafa Mahdi Mustafa Alaskari |
| author_sort | Saad Mohsen Saleh |
| collection | DOAJ |
| description |
In this study, pebble bed as an absorber and storage material was placed in a south facing, flat plate air-type solar collector at fixed tilt angle of (45°). The effect of this material and differ- ent parameters on collector efficiency has been investigated experimentally and
theoretically. Two operation modes were employed to study the performance of the solar air heater. An inte- grated mode of continuous operation of the system during the period of (11:00 am – 3:00 pm) and non-integrated mode in which the system stored the solar energy through the day then used the stored energy during the period of (3:00 pm – 8:00 pm). The results of parametric study in case of continuous operating showed that the maximum average temperature difference of air between inlet and outlet sections observed on (0.018 kg/s) air mass flow rate were exceeded (17°C) and the maximum outlet temperature that got was exceeded (34°C) for the three months (December, January and February) of experiments. Average efficiency was ranged from 53% to 65%. In the case of storage and then operating, the maximum outlet air temperature was ranged from (27°C) up to (31°C) then
decreased with spend of energy to reach (13°C) to (18°C) and the maximum storage energy was (165.14 W) for the porosity of (0.29) , height of (20 cm) and (0.01 kg/s) mass flow rate. The results also, showed that the solar air collector supplied a solar heating fraction (SHF) with an average of (0.65) for a meeting room (3 * 4 * 7 m) located in Baghdad as a case study.
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| first_indexed | 2024-03-13T00:19:05Z |
| format | Article |
| id | doaj.art-27752ae064b14bae9077a91293858303 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-13T00:19:05Z |
| publishDate | 2023-07-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-27752ae064b14bae9077a912938583032023-07-11T18:34:10ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392023-07-01200810.31026/j.eng.2014.08.04Parametric Study of Active Solar Heating Using a Pebble Bed as a Thermal Collector and Storage Unit Saad Mohsen SalehMustafa Mahdi Mustafa Alaskari In this study, pebble bed as an absorber and storage material was placed in a south facing, flat plate air-type solar collector at fixed tilt angle of (45°). The effect of this material and differ- ent parameters on collector efficiency has been investigated experimentally and theoretically. Two operation modes were employed to study the performance of the solar air heater. An inte- grated mode of continuous operation of the system during the period of (11:00 am – 3:00 pm) and non-integrated mode in which the system stored the solar energy through the day then used the stored energy during the period of (3:00 pm – 8:00 pm). The results of parametric study in case of continuous operating showed that the maximum average temperature difference of air between inlet and outlet sections observed on (0.018 kg/s) air mass flow rate were exceeded (17°C) and the maximum outlet temperature that got was exceeded (34°C) for the three months (December, January and February) of experiments. Average efficiency was ranged from 53% to 65%. In the case of storage and then operating, the maximum outlet air temperature was ranged from (27°C) up to (31°C) then decreased with spend of energy to reach (13°C) to (18°C) and the maximum storage energy was (165.14 W) for the porosity of (0.29) , height of (20 cm) and (0.01 kg/s) mass flow rate. The results also, showed that the solar air collector supplied a solar heating fraction (SHF) with an average of (0.65) for a meeting room (3 * 4 * 7 m) located in Baghdad as a case study. https://joe.uobaghdad.edu.iq/index.php/main/article/view/2544pebble bed, active solar heating, thermal collector and storage, experimental and theoretical study |
| spellingShingle | Saad Mohsen Saleh Mustafa Mahdi Mustafa Alaskari Parametric Study of Active Solar Heating Using a Pebble Bed as a Thermal Collector and Storage Unit Journal of Engineering pebble bed, active solar heating, thermal collector and storage, experimental and theoretical study |
| title | Parametric Study of Active Solar Heating Using a Pebble Bed as a Thermal Collector and Storage Unit |
| title_full | Parametric Study of Active Solar Heating Using a Pebble Bed as a Thermal Collector and Storage Unit |
| title_fullStr | Parametric Study of Active Solar Heating Using a Pebble Bed as a Thermal Collector and Storage Unit |
| title_full_unstemmed | Parametric Study of Active Solar Heating Using a Pebble Bed as a Thermal Collector and Storage Unit |
| title_short | Parametric Study of Active Solar Heating Using a Pebble Bed as a Thermal Collector and Storage Unit |
| title_sort | parametric study of active solar heating using a pebble bed as a thermal collector and storage unit |
| topic | pebble bed, active solar heating, thermal collector and storage, experimental and theoretical study |
| url | https://joe.uobaghdad.edu.iq/index.php/main/article/view/2544 |
| work_keys_str_mv | AT saadmohsensaleh parametricstudyofactivesolarheatingusingapebblebedasathermalcollectorandstorageunit AT mustafamahdimustafaalaskari parametricstudyofactivesolarheatingusingapebblebedasathermalcollectorandstorageunit |