Transient heat conduction in a glass with chemically deposited SnSCuxS solar control coating

✍ Scribed by G. Alvarez; C.A. Estrada

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 274 KB
• Volume: 6
• Category: Article
• ISSN: 0960-1481
• DOI: 10.1016/0960-1481(95)00093-0

✦ Synopsis

The transient thermal performance of a chemically deposited thin film on a glass substrate is presented. Differential energy balances for the glass are set up assuming a one-dimensional transient state for normal incidence of the air mass to solar radiation. Using the reported properties of a SnS-Cu,S thin film as a specific example, the net energy flow through a glass and the specific film were calculated for a time period. The effect of absorption in the film is specifically considered. The theoretical time histories of the surface temperatures of the glass plus solar control coating and the clear glass are plotted for an exterior temperature range of 0 50°C. The redistribution to the interior and exterior of the absorbed component of the solar radiation as well as the shading coefficient in time are evaluated for a constant convective heat transfer coefficient for ambient temperatures of 30 and 20°C. Also, the time constant of the system is given.