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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Estimate the Ventilation Effect from Wire Mesh Screen Assisted Solar Chimney
Author(s)
Md. Mizanur Rahman, Mohd. Suffian Bin Misaran, Mohd. Jamrye Bin Jamanun and Ahmed Jawad
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DOI:10.17265/1934-8975/2018.03.002
Affiliation(s)
Faculty of Engineering, Universiti Malaysia Sabah, Kota Kinabalu, Sabah 88400, Malaysia
ABSTRACT
In 1750s European houses, chimneys are used to remove smoke and dust particle
from the fire place to the ambient. At present the applications of chimneys are extended
for house ventilation, which is known as solar chimney assisted ventilation system.
In this paper, the effect of wire mesh screen on chimney assisted ventilation
system is studied and presented. Natural draft chimney integrated with solar heating system
that is known as solar chimney, can be used for
building ventilation. Number of research works had been conducted on
different types of solar chimney to enhance
the building ventilation performance. In this study a solar chimney model is designed
and modified with wire mesh screens. An electric heating system is installed
in the models to replace the solar
absorber in the solar chimney. The airflow rates and the exit air temperatures are also measured and compared for normal chimney and modified chimneys under different heat
loads. The performances of
the chimneys are evaluated to determine the effects of wire mesh screen on the solar chimney.
Experimental results indicated the solar chimney model
with 0.64 mm × 0.64 mm pore size wire
mesh screen at the exit is able to enhance velocity
and the exit air
temperature are about 54% and 41%, respectively. It has been
concluded that the wire mesh screen has significant effect of model solar chimney
and is able to enhance the performance.
KEYWORDS
Solar chimney, natural ventilation, wire mesh screen.
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