Figure 2. Drying curves of Iron yam chips as a function of drying time by heat pump (HP) drying alone or combined with far infrared radiation (FIR) at 500, 1500 or 3000 W.

From

Study of Iron Yam-Chip (Dioscorea opposita Thunb. cv. Tiegun) Dehydration Using Far-Infrared Radiation Assisted Heat Pump Drying

Song Xiaoyong, Cheng Luming

Journal of Food and Nutrition Research. 2015, 3(1), 20-25 doi:10.12691/jfnr-3-1-4