Abstract
Interaction effects of semitransparent glazing with SnS-Cu x S solar control coating on the turbulent natural convection in a square cavity containing air is analyzed numerically. The size of the cavity covers a range from 0.70 to 6.98 m (Ra = 109–1012). One vertical wall of the cavity is isothermal, and the opposite one is the semitransparent glazing. Top and bottom walls are adiabatic. The 2-D mass, momentum, and energy equations using the turbulent k– ϵ model are solved by the finite-volume technique. The model is verified, reducing the problem to a differentially heated square cavity and indicating very good agreement. The isotherms, turbulent viscosity distributions, temperatures of the interior and exterior surfaces of the glazing with solar control coating (SCCG) and without solar control coating (WSCCG) for the 6.98-m cavity are presented. The average semitransparent wall temperatures were 64°C for SCCG and 40°C for WSCCG. The Nusselt numbers for SCCG and WSCCG versus the length of the cavity show that the difference is a range of 17% to 22%. Correlations for the average Nusselt numbers for steady state are presented for 0.70 m ≤ W ≤ 6.98 m and Pr = 0.71. The solar heat gain coefficient SHGC indicates that for the glazing with SnS-Cu x S solar control coating, the energy gain toward the interior decreases by 48.8%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
