Thermal-hydraulic performance of solar receiver duct with inclined punched-ribs and grooves
The article presents an experimental study on turbulent airflow friction and thermal behaviors in a solar receiver heat exchanger duct mounted with combined inclined chamfered-groove and turbulators. The experimental work was conducted for Reynolds numbers from 5,300 to 24,000, based on the hydrauli...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22006736 |
| _version_ | 1811271847222706176 |
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| author | Nuthvipa Jayranaiwachira Pongjet Promvonge Chinaruk Thianpong Sompol Skullong |
| author_facet | Nuthvipa Jayranaiwachira Pongjet Promvonge Chinaruk Thianpong Sompol Skullong |
| author_sort | Nuthvipa Jayranaiwachira |
| collection | DOAJ |
| description | The article presents an experimental study on turbulent airflow friction and thermal behaviors in a solar receiver heat exchanger duct mounted with combined inclined chamfered-groove and turbulators. The experimental work was conducted for Reynolds numbers from 5,300 to 24,000, based on the hydraulic duct diameter. The 45°-inclined punched-ribs and grooves were placed periodically on the absorber plate. The punched-rib parameters were four inclination angles (β = 0°, 45°, 90° and 135°) of the punched holes and three relative rib pitches (PR = 1, 1.5 and 2) whereas only a rib blockage ratio (BR = 0.5) and an angle of attack (α) of 45° were fixed. Similarly, the parameters of the grooves included only three groove-pitch ratios (PR), similar to the rib pitches and one groove blockage ratio (BR = 0.2). The experimental result has revealed that the combination of rib-groove turbulators at β = 0° (solid rib) and PR = 1 gives the maximum heat transfer rate and friction loss while the greatest thermal enhancement factor of 2.1 was found at β = 45°, PR = 1. Moreover, the friction loss and heat transfer correlations for this thermal system were determined. |
| first_indexed | 2024-04-12T22:29:34Z |
| format | Article |
| id | doaj.art-76f3dade894e44eca1cced15128e1437 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-12T22:29:34Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-76f3dade894e44eca1cced15128e14372022-12-22T03:14:02ZengElsevierCase Studies in Thermal Engineering2214-157X2022-11-0139102437Thermal-hydraulic performance of solar receiver duct with inclined punched-ribs and groovesNuthvipa Jayranaiwachira0Pongjet Promvonge1Chinaruk Thianpong2Sompol Skullong3Department of Mechanical Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, ThailandDepartment of Mechanical Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, ThailandDepartment of Mechanical Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, ThailandEnergy Systems Research Group and ATAE Research Unit, Department of Mechanical Engineering, Faculty of Engineering at Sriracha, Kasetsart University Sriracha Campus, 199 M.6, Sukhumvit Rd., Sriracha, Chonburi, 20230, Thailand; Corresponding author.The article presents an experimental study on turbulent airflow friction and thermal behaviors in a solar receiver heat exchanger duct mounted with combined inclined chamfered-groove and turbulators. The experimental work was conducted for Reynolds numbers from 5,300 to 24,000, based on the hydraulic duct diameter. The 45°-inclined punched-ribs and grooves were placed periodically on the absorber plate. The punched-rib parameters were four inclination angles (β = 0°, 45°, 90° and 135°) of the punched holes and three relative rib pitches (PR = 1, 1.5 and 2) whereas only a rib blockage ratio (BR = 0.5) and an angle of attack (α) of 45° were fixed. Similarly, the parameters of the grooves included only three groove-pitch ratios (PR), similar to the rib pitches and one groove blockage ratio (BR = 0.2). The experimental result has revealed that the combination of rib-groove turbulators at β = 0° (solid rib) and PR = 1 gives the maximum heat transfer rate and friction loss while the greatest thermal enhancement factor of 2.1 was found at β = 45°, PR = 1. Moreover, the friction loss and heat transfer correlations for this thermal system were determined.http://www.sciencedirect.com/science/article/pii/S2214157X22006736Heat transferInclined ribThermal performanceSolar receiverTurbulators |
| spellingShingle | Nuthvipa Jayranaiwachira Pongjet Promvonge Chinaruk Thianpong Sompol Skullong Thermal-hydraulic performance of solar receiver duct with inclined punched-ribs and grooves Case Studies in Thermal Engineering Heat transfer Inclined rib Thermal performance Solar receiver Turbulators |
| title | Thermal-hydraulic performance of solar receiver duct with inclined punched-ribs and grooves |
| title_full | Thermal-hydraulic performance of solar receiver duct with inclined punched-ribs and grooves |
| title_fullStr | Thermal-hydraulic performance of solar receiver duct with inclined punched-ribs and grooves |
| title_full_unstemmed | Thermal-hydraulic performance of solar receiver duct with inclined punched-ribs and grooves |
| title_short | Thermal-hydraulic performance of solar receiver duct with inclined punched-ribs and grooves |
| title_sort | thermal hydraulic performance of solar receiver duct with inclined punched ribs and grooves |
| topic | Heat transfer Inclined rib Thermal performance Solar receiver Turbulators |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22006736 |
| work_keys_str_mv | AT nuthvipajayranaiwachira thermalhydraulicperformanceofsolarreceiverductwithinclinedpunchedribsandgrooves AT pongjetpromvonge thermalhydraulicperformanceofsolarreceiverductwithinclinedpunchedribsandgrooves AT chinarukthianpong thermalhydraulicperformanceofsolarreceiverductwithinclinedpunchedribsandgrooves AT sompolskullong thermalhydraulicperformanceofsolarreceiverductwithinclinedpunchedribsandgrooves |