Effect of Radiative Filling Gas in Compound Parabolic Solar Energy Collectors

S. A. Gandjalikhan Nassab; M. Moein Addini

Volume 12, Issue 3 , September 2021, , Pages 181-191

https://doi.org/10.5829/ijee.2021.12.03.01

Abstract
  In the present paper, the use of radiating gas instead of air inside the cavity of compound parabolic collectors (CPSs) is suggested and verified by numerical analysis. The collector under study has a simple cone shape with flat absorber which is filled with a participating gas such as carbon dioxide ...  Read More

Performance Augmentation of Solar Air Heater for Space Heating Using a Flexible Flapping Guide Winglet

S. A. Gandjalikhan Nassab; M. Moein Addini

Volume 12, Issue 2 , June 2021, , Pages 161-172

https://doi.org/10.5829/ijee.2021.12.02.09

Abstract
  A new idea is presented in this paper for improving the performance of solar air heater (SAH) designed for space heating by employing a thin flexible guide winglet. In addition to the role of winglet in pushing the convective airflow toward the heated surface, it behaves as a vortex generator (VG) due ...  Read More