N. Srisittipokakun et al. / Procedia Engineering 32 (2012) 839 – 846
2. Performance of the dryer
To investigate the performance of the dryer, the full-scale experiments of dryer have been conducted
on 100 kg of Andrographis paniculata. The instruments and method which used during the experiment are following.
2.1 Instruments and devices
To measure the solar radiation and another parameters that effect on the performance of dryer,
different devices were employed. A pyranometer (Kipp & Zonen model CM 11, accuracy