Abstract
The thermal conductivity of agricultural seeds has been used as engineering parameter in the design of processes and machines for drying, storing, aeration and refrigeration. The thermal conductivity of safflower seeds was determined and its changes with moisture content, bulk density and cultivar investigated. The thermal conductivity values of cv. Remzibey-05 increased from 0.105 to 0.132 W m–1 K–1 and from 0.108 to 0.137 W m–1 K–1 for low and high (loose and dense) bulk densities, respectively, as the moisture content increased from 5.79 to 20.38% db. Likewise, the thermal conductivity values of cv. Dinçer increased from 0.106 to 0.137 W m–1 K–1 and from 0.110 to 0.140 W m–1 K–1 for low and high bulk densities, respectively in the moisture range of 5.07 to 20.30% db. The thermal conductivity values obtained with the high bulk density was higher than those obtained with the low bulk density for both cultivars. The thermal conductivity value of cv. Dinçer seeds was lower than that of cv. Remzibey-05 seeds.
Highlights
Safflower (Carthamus tinctorius L.) is an annual oilseed crop
The objective of this study was to determine the thermal conductivity of safflower seeds as affected by moisture content, bulk density and cultivar
The effect of moisture content and bulk density on the thermal conductivity values of the safflower seeds is presented in Figure 3a for cv
Summary
Safflower (Carthamus tinctorius L.) is an annual oilseed crop. Turkey is the fifth country in the production of safflower in the year 2009 after India, USA, Argentina and Kazakhstan. The production of safflower rose in Turkey from 18 t in the year 2000 to 20,076 t in 2009 and from 624,610 t in the year 2000 to 653,791 t in 2009 in the world (FAO, 2011; http://faostat.fao.org). Thermal properties of food and agricultural materials are important engineering parameters in the design of processes, equipments, and machines needed in drying, storing, aeration and refrigeration. One of such properties is the thermal conductivity
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