The specific heat of wheat

  • Y. Cao Academy of State Administration of Grain, Beijing, P. R. China,
  • G. Li Academy of State Administration of Grain, Beijing, P. R. China, Email: lgt@chinagrain.org
  • Z. Zhang Academy of State Administration of Grain, Beijing, P. R. China,
  • L. Chen Academy of State Administration of Grain, Beijing, P. R. China,
  • Y. Li Academy of State Administration of Grain, Beijing, P. R. China,
  • T. Zhang Academy of State Administration of Grain, Beijing, P. R. China,

Abstract

Specific heat of Nanduan 1 variety of wheat was determined by Differential Scanning Calorimetry (DSC) in the temperature range of -10 to 110°C and initial moisture content from 19.90% wet basis reduced to 6.23% dry basis by 130°C oven drying. The specific heat ranged from 1.0792 to 5.5336 kJ/kg ºC. A multiple regression model relating specific heat to temperature and moisture content was developed in the temperature range of 0-70°C. The calculated curve fit the observed curve well, with an R-square of 0.99. An equation describing the relationship between density and moisture content was developed. The peak value of the density of wheat was observed in the moisture content range 8% to 10% wet basis.

Keyword: Specific heat, Wheat, Differential Scanning Calorimetry, Physical Properties, Model
Veröffentlicht
2010-09-02