| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1995: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1994: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Research Abstract |
In this study, four main themes, which were thin layr drying characteristic, equilibrium moisture content (EMC), thermophysical property and water absorption characteristics for several beans, were investigated for supplying basic data conceming the safe storage and the processing of several beans. In thin later drying characteristics of beans, that of adzuki beans is published in Transctions of the ASAE (39 (2), 1996). Thin layr drying characteristics of some another beans (soy beans, tobo beans, kintoki beans etc.) were also investigated under drying conditions between 25 and 45ﾟC.Equilibrium moisture content of adzuki beans were meaured by a new method. This method was confirmed as a method of the EMC measurement because it was very accurate and demanded only short period for equilibrium. Thermophysical properties of three kinds of beans (adzuki, kintoki, tebo) were determined by transient heat flow method using a probe that approximates a line heat source at five different moisture contents and five temperatures, respectively. The effective thermal conductivity and thermal diffusivity of beans were determined simultaneously. Using these results and bulk density, the specific heat of beans were estimated. Water absorption characteristics and volume change of soy beans were measured. The mathematical model evaluated to fit the obtained data was the exponential model, which was suitable to describe the water absorption characteristics of soy bean. Moreover, volume change during water absorption were determined.
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