Performance Comparison of Solar Air Heater with Extended Surfaces and Iron Filling
Main Article Content
Abstract
The thermal performance of a solar air heater (SAH) is enhanced by producing air turbulence. The air turbulence is created by using either extended surface or iron filing between the black colour absorber plate and glass of the SAH. In this article, the thermal performance of a SAH in the case of without fins and with fins at a different location is compared with the SAH using an iron filling. The value of the overall heat loss coefficient in the case of iron filling is 2.1 W/m2K. The average thermal efficiency of the iron filling condition is 65.14%. The additional arrangement to increase the heat transfer also increases the pressure drop which leads to higher power consumption. Results show the thermal efficiency of SAH using iron filling is found best followed by fin arrangement above, below the absorber plate, and without fin.
Article Details
Issue
Section
Articles
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms: a. Authors retain copyright and grant the journal right of first publication, with the work two years after publication simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal. b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).