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Experimental investigation of baffle inclination on the efficiency of a square-baffled solar air heater.

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Title: Experimental investigation of baffle inclination on the efficiency of a square-baffled solar air heater.
Authors: Rajendran, Vijayakumar1 (AUTHOR) talk2vijayakumar89@gmail.com, Selvaraj, Vinoth Kumar2 (AUTHOR), Subramanian, Jeyanthi2 (AUTHOR), Panneerselvam, Kalaiselvi3 (AUTHOR), Samithas, Devakirubakaran4 (AUTHOR) kirubathas@gmail.com, Balachandran, Praveen Kumar5,6 (AUTHOR) praveen@ukm.edu.my, Zainuri, Muhammad Ammirrul Atiqi Mohd7 (AUTHOR)
Source: Energy Sources Part A: Recovery, Utilization & Environmental Effects. Dec2025, Vol. 47 Issue 2, p1-26. 26p.
Subject Terms: Solar air heaters, Heat transfer, Heat radiation & absorption, Heat exchanger efficiency, Scientific method
Abstract: Due to insufficient heat transfer between the absorber or collector plate and the air, solar air heaters (SAHs) have low collector efficiency. Various forms of artificial roughness increase the air heater's thermal efficiency. The goal of the current project is to use a square-shaped baffled to conduct an experimental analysis of the SAH. In this work, the baffle angle is modified to determine the ideal angle for the square-shaped baffles to provide the most effective thermal performance. The range of baffle angles is 0°, 15°, 30°, 45°, 60°, and 90°, in that number. Every baffle angle in the experiments uses a mass flow rate of 0.02 kg/s to compare the performance. The results indicate that a baffle angle of 60° performs better than an angle of 30°, although the difference in performance between the two is not as considerable. The 60° baffle angle offers significantly better performance than the other angles, which include 0, 15, 45, and 90°. Compared to the other baffle angle studied, it provides a greater maximum average outlet temperature of 60.4°C, a maximum average thermal efficiency of 55.9%, and a maximum average thermo-hydraulic efficiency of 40.2%. This system's behavior in terms of the economy and environment is also examined, demonstrating enhanced performance in both aspects. [ABSTRACT FROM AUTHOR]
Copyright of Energy Sources Part A: Recovery, Utilization & Environmental Effects is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: GreenFILE
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Header DbId: 8gh
DbLabel: GreenFILE
An: 190239089
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Experimental investigation of baffle inclination on the efficiency of a square-baffled solar air heater.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Rajendran%2C+Vijayakumar%22">Rajendran, Vijayakumar</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> talk2vijayakumar89@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Selvaraj%2C+Vinoth+Kumar%22">Selvaraj, Vinoth Kumar</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Subramanian%2C+Jeyanthi%22">Subramanian, Jeyanthi</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Panneerselvam%2C+Kalaiselvi%22">Panneerselvam, Kalaiselvi</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Samithas%2C+Devakirubakaran%22">Samithas, Devakirubakaran</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> kirubathas@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Balachandran%2C+Praveen+Kumar%22">Balachandran, Praveen Kumar</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)<i> praveen@ukm.edu.my</i><br /><searchLink fieldCode="AR" term="%22Zainuri%2C+Muhammad+Ammirrul+Atiqi+Mohd%22">Zainuri, Muhammad Ammirrul Atiqi Mohd</searchLink><relatesTo>7</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Energy+Sources+Part+A%3A+Recovery%2C+Utilization+%26+Environmental+Effects%22">Energy Sources Part A: Recovery, Utilization & Environmental Effects</searchLink>. Dec2025, Vol. 47 Issue 2, p1-26. 26p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Solar+air+heaters%22">Solar air heaters</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+transfer%22">Heat transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+radiation+%26+absorption%22">Heat radiation & absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+exchanger+efficiency%22">Heat exchanger efficiency</searchLink><br /><searchLink fieldCode="DE" term="%22Scientific+method%22">Scientific method</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Due to insufficient heat transfer between the absorber or collector plate and the air, solar air heaters (SAHs) have low collector efficiency. Various forms of artificial roughness increase the air heater's thermal efficiency. The goal of the current project is to use a square-shaped baffled to conduct an experimental analysis of the SAH. In this work, the baffle angle is modified to determine the ideal angle for the square-shaped baffles to provide the most effective thermal performance. The range of baffle angles is 0°, 15°, 30°, 45°, 60°, and 90°, in that number. Every baffle angle in the experiments uses a mass flow rate of 0.02 kg/s to compare the performance. The results indicate that a baffle angle of 60° performs better than an angle of 30°, although the difference in performance between the two is not as considerable. The 60° baffle angle offers significantly better performance than the other angles, which include 0, 15, 45, and 90°. Compared to the other baffle angle studied, it provides a greater maximum average outlet temperature of 60.4°C, a maximum average thermal efficiency of 55.9%, and a maximum average thermo-hydraulic efficiency of 40.2%. This system's behavior in terms of the economy and environment is also examined, demonstrating enhanced performance in both aspects. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energy Sources Part A: Recovery, Utilization & Environmental Effects is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=190239089
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/15567036.2025.2505196
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 26
        StartPage: 1
    Subjects:
      – SubjectFull: Solar air heaters
        Type: general
      – SubjectFull: Heat transfer
        Type: general
      – SubjectFull: Heat radiation & absorption
        Type: general
      – SubjectFull: Heat exchanger efficiency
        Type: general
      – SubjectFull: Scientific method
        Type: general
    Titles:
      – TitleFull: Experimental investigation of baffle inclination on the efficiency of a square-baffled solar air heater.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Rajendran, Vijayakumar
      – PersonEntity:
          Name:
            NameFull: Selvaraj, Vinoth Kumar
      – PersonEntity:
          Name:
            NameFull: Subramanian, Jeyanthi
      – PersonEntity:
          Name:
            NameFull: Panneerselvam, Kalaiselvi
      – PersonEntity:
          Name:
            NameFull: Samithas, Devakirubakaran
      – PersonEntity:
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            NameFull: Balachandran, Praveen Kumar
      – PersonEntity:
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            NameFull: Zainuri, Muhammad Ammirrul Atiqi Mohd
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          Dates:
            – D: 01
              M: 12
              Text: Dec2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 15567036
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            – Type: volume
              Value: 47
            – Type: issue
              Value: 2
          Titles:
            – TitleFull: Energy Sources Part A: Recovery, Utilization & Environmental Effects
              Type: main
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