English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Repeated rib elements are used as roughness medium to increase heat transfer. An experimental and numerical analysis has been performed to study the influence of number of gaps on absorber plates pasted with arc-shaped roughness elements with gaps to study the heat transfer (Nu) and friction factor (f) used in solar air heaters (SAHs). ANSYS was used to simulate the air flow through a rectangular passage. A heating source of 1000 W/m 2  was provided on the top of the surface to simulate the radiant energy of the sun. Twenty seven combinations of roughened duct were investigated using the software as well as on an experimental set-up. The result shows that the highest value of Nu was obtained for roughness element which has 2 gaps. Thermo-hydraulic efficiency parameter has also been evaluated for the same.

CFD and thermo-hydraulic analysis of multiple arc roughened absorber plate with gaps used in solar air heaters