Modelling And Optimization Of Solar-Control Glasses

Computer-assisted design of experiments based on the D-optimal design methodology and multiple linear regression analysis has been applied to the control and optimisation of solar-control properties of a sulfate-fined soda-lime-silicate glass which has been modified with Fe203 additions. The experimental design consisted of 64 initial glass compositions which were fired as 500g batches under ambient conditions in platinum crucibles at 1500 deg C for 3h. The samples were then measured for total solar transmittance in accordance with ASTM E903-96 using a Cary-500 UV/vis/near-IR spectrophotometer equipped with an integrating sphere. CIE-LAB colour and visible transmittance was measured in accordance with ASTM E308.