Investigation of the effect of duct height on the performance of solar air heater with baffles

Other Title(s)

تحقيق في تأثير ارتفاع قناة هوائية على أداء مسخن هوائي شمسي مع حواجز

Joint Authors

Jalil, Jalal Mohammed
Salih, Ghayda Kain
Madi, Yusuf Ali

Source

Journal of Engineering and Sustainable Development

Publisher

al-Mustansyriah University College of Engineering

Publication Date

2018-03-31

Country of Publication

Iraq

No. of Pages

12

Main Subjects

Mechanical Engineering

English Abstract

In this study, solar air heater with straight shaped baffles is investigated numerically and experimentally to improve the thermohydraulic performance by changing the height of the duct to find the optimum value.

Numerically, steady state 3D forced convection turbulent model is used to solve Navier Stokes and energy equations of airflow inside rectangular duct of solar air heater.

The results showed that, the 3.75 cm duct height with air mass flow rate of 0.05 kg/s yields the highest effective efficiency.

In addition, the results showed that the 2.5 cm duct height gives the highest effective efficiency for mass flow rate up to 0.0375 kg/s and it decreases as mass flow rate increases due to excessive differential pressure developed across the duct.

Data Type

Conference Papers

Record ID

BIM-906807

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