This project studied the drying noodles hierarchy with infrared radiation and hot. The drying procedures are 3 steps. Step 1 is dried by infrared, infrared and 200 is 400 600 watts.2 is a by the sample, through drying by infrared radiation to stay with the ambient air flows through the step 3 is dried by hot air temperature and 40 50 60 degrees Celsius. By step 1 3 and air flow through the (1.0 m / s) from the experiment, it was found that's infrared and inlet air temperature affecting the drying Chinese pastry lines hierarchy. With increasing's infrared and inlet air temperature will cause the moisture ratio and period of steam แห้งลดลง.Firework infrared and inlet air temperature increases. The results showed that the drying กำลังอินฟราเรด 400 watts for 60 minutes. And it was a break for 15 minutes and baked on hot air temperature 50 C from time to time.Minutes is appropriate, from the analysis of the development of constant drying kinetics equation of drying. From drying equation semi theory.It was found that the constant drying will increase the ability infrared and inlet air temperature, which form of มการ. The polynomial can predict the experimental results of drying as well. From the experiment to study the kinetics model of color changes around the dry.Brightness (L *) decreased value of red (a *) and yellowness (b *) tends to increase, and from the analysis of the color changes found. The difference of values as color values include (Δ E) values Chroma Hue tends to increase, and the angleKey words:
drying noodles hierarchy kinetics, hot air, infrared
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