Theoretical and Experimental Studies for a Double Pass Solar Air Heater | Zendy

A. Ammar | Zendy

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Theoretical and Experimental Studies for a Double Pass Solar Air Heater

Author(s) -

A. Ammar

Publication year - 2017

Publication title -

international journal of computer applications

Language(s) - English

Resource type - Journals

ISSN - 0975-8887

DOI - 10.5120/ijca2017913117

Subject(s) - computer science , double pass , nuclear engineering , architectural engineering , optics , physics , engineering

The performance characteristics of double pass solar air heater (DPSAH) were evaluated theoretically and experimentally. Actual hourly weather data for Baghdad, Iraq was used to assess the DPSAH in December 2016 and January 2017. The results of the study indicated that increasing airflow rate through the collector increases the instantaneous efficiency and the useful energy gained but it reduces the air outlet temperature rapidly. An air outlet temperature was about 37 C at midday for airflow rate of 0.01 m/s. The maximum value of the average performance line was 63 %. It was found that the present DPSAH outlet air temperature greater than single pass solar air heater (SPSAH) by 3 C for the same airflow rate. Moreover, the average difference between the theoretical and the experimental results was 3 %.

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