Effect of Converging Duct on Solar Chimney

Authors

  • Abdul Muin Shaari Center for Energy and Industrial Environment Studies, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia
  • Kamil Abdullah Center for Energy and Industrial Environment Studies, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia
  • Mohd Faizal Mohideen Batcha Center for Energy and Industrial Environment Studies, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia
  • Hamidon Salleh Center for Energy and Industrial Environment Studies, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Johor, Malaysia
  • Makatar Wae-Hayee Energy Research Centre and Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand

Keywords:

solar chimney, natural convection, sustainable technology

Abstract

Solar chimney is very useful in terms of improving indoor thermal comfort. There are not many studies or simulation that have been done for a converging duct of solar chimney A CFD model of a solar chimney is simulated in this study using ANSYS Workbench 19.2 to find out the effect of convergent of the solar chimney to the velocity in the solar chimney and the air changes per hour in the developed numerical model. Solar chimney is mainly used in hot climate as a passive solar cooling system that can regulate the temperature and increases ventilation. The data needed to simulate the numerical model is taken from previous study. Using fluid flow (CFX) a 2D CFD steady state is simulated by 10 mm of thickness for the model. Four openings were set up to let air leave and enter the cabin. There were four configurations of bottom top ratio were studied, 1:1, 1:0.8, 1:0.75 and 1:0.5. The 1:0.5 ratio gives the highest outlet velocity while the 1:1 ratio have the highest air changes per hour. Converging the solar chimney bring the solar chimney performance down.

Downloads

Published

2021-01-16

How to Cite

Shaari, A. M. ., Abdullah, K. ., Mohideen Batcha, M. F. ., Salleh, H. ., & Wae-Hayee, M. . (2021). Effect of Converging Duct on Solar Chimney. CFD Letters, 12(3), 89–97. Retrieved from https://www.akademiabaru.com/submit/index.php/cfdl/article/view/3228

Issue

Section

Articles

Most read articles by the same author(s)