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Experimental study of the prediction of the ventilation flow rate through solar chimney with large gap-to-height ratios

2015 Building ventilation Experimental

Jing, Haiwei, et al. "Experimental study of the prediction of the ventilation flow rate through solar chimney with large gap-to-height ratios." Building and Environment 89 (2015): 150-159.
DOI: 10.1016/j.buildenv.2015.02.018

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Summary

Laboratory tests on a solar chimney model with wide air gaps (gap-to-height ratios of 0.2–0.6) show that an established airflow prediction method overestimates ventilation rates. A revised method that accounts for outlet pressure losses under varying flow conditions matches measurements better, and airflow peaks at a gap-to-height ratio near 0.5, with heat flux and gap width strongly shaping temperature and velocity profiles.

Description written by Solar Tower. The original abstract is available from the publisher via the link below.

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