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

Problem statement: One of the most important components of a solar energy system is the&#13; solar collector. The performances of double-pass solar collector with longitudinal fins absorbers are&#13; analyzed. Approach: The study involves a theoretical study to investigate the effect of mass flow rate,&#13; number and height of fins on efficiency, which involves steady-state energy balance equations on the&#13; longitudinal fins absorber of solar collectors. The theoretical solution procedure of the energy&#13; equations uses a matrix inversion method and making some algebraic rearrangements. Results: The&#13; collector efficiency increases as the number and height of fins increases. For a mass flow rate 0.02-&#13; 0.1kg/s, the double-pass solar collectors are efficiency about 36-73% in upper fins (type I), 37-75% in&#13; lower fins (type II) and 46-74% in upper and lower fins (type III). Conclusion: The efficiency of the&#13; collector is strongly dependent on the flow rate, efficiency increase is about 35%

Thermal Efficiency of Double Pass Solar Collector with Longitudinal Fins Absorbers