Transient Investigation of Stack-driven Air Flow Through Multiple Upper-vents in the Presence of Constant Indirect Flow Velocity in Rectangular Ventilated Building
Volume 4, Issue 2, December 2020, Pages: 14-30
Received: Sep. 25, 2019;
Accepted: Oct. 21, 2019;
Published: Sep. 3, 2020
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Muhammad Auwal Lawan,, Department of Mathematics, Kano University of Science and Technology, Wudil, Nigeria
Sunusi Aminu Nata’ala, Department of Mathematics, Kano University of Science and Technology, Wudil, Nigeria
The paper investigates the time independent effect of Stack- driven airflow in cross- ventilated building with multiple opening in the presence of constant indirect flow velocity. The dimensionless model of momentum and energy equations are analyzed, using second order linear differential equation to develop the explicit expression for velocity, temperature profiles together with volumetric and mass- transfer by means of separation of variable method. Some numerical examples are presented graphically in order to illustrate the effects of physical parameters involved in the study. From the course of investigation, it was observed air temperature and velocity increase with the increase in both parameters (θ0), (Pr) and (Gr). Respectively. In addition, comparison with previously published work by A. L. Muhammad et. al (2016) was performed. In which, the study concluded that, the results for present work is more effective and efficient than the previous work in term of ventilation process. Finally, from the course of investigation, it was observed air temperature and velocity increase with the increase in both parameters (θ0), (Pr) and (Gr) respectively.
Muhammad Auwal Lawan,,
Sunusi Aminu Nata’ala,
Transient Investigation of Stack-driven Air Flow Through Multiple Upper-vents in the Presence of Constant Indirect Flow Velocity in Rectangular Ventilated Building, Engineering Mathematics.
Vol. 4, No. 2,
2020, pp. 14-30.
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