Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Desorption EMC Models for Rapeseed

유채씨의 방습 평형함수율

  • Kim, You-Ho (National Institute of Agricultural Engineering) ;
  • Han, Jea-Woong (Dept. of Bio-Mechatronic Engineering SungKyunKwan University) ;
  • Keum, Dong-Hyuk (Dept. of Bio-Mechatronic Engineering SungKyunKwan University)
  • Published : 2007.12.25
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Abstract

This study was performed to determine desorption equilibrium moisture contents(EMC) of rapeseed grown in Korea. EMC values were measured by static method using saturated salt solutions at three temperature levels of 30, 40 and $50^{\circ}C$, and eight relative humidity levels in the range from 11.0 to 83.6%. The measured EMC values were fitted to Chung-Pfost, Modified Halsey, Modified Henderson and Modified Oswin models by using nonlinear regression analysis. The results of root mean square errors for four models showed that Halsey and Modified Oswin Models could serve as good models, but the Chung-Pfost and Modified Henderson models could not show reasonably good fitting.

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References

  1. ASAE Standards. 2004. Moisture measurement-unground grain and seeds. pp. 582
  2. ASABE Standards. 2006. Moisture relationships of plant-based agricultural products. pp. 552
  3. Choi, B. M. 2005. EMC/ERH of rough rice and brown rice. J. of Biosystems Engineering 30(2):95-101. (In Korean) https://doi.org/10.5307/JBE.2005.30.2.095
  4. Greenspan, L. 1977. Humidity fixed points of binary saturated aqueous solutions. J. of Research National Bureau of Standards 81A:89 https://doi.org/10.6028/jres.081A.011
  5. Keum, D. H. and H. Kim. 2000. Desorption equilibrium moisture content of rough rice, brown rice, white rice, and rice hull. J. of the Korean Society for Agricultural Machinery 25(1):47-54. (In Korean)
  6. Keum, D. H. and H. Kim. 2001. Adsorption equilibrium moisture content of rough rice, brown rice, white rice, and rice hull. J. of the Korean Society for Agricultural Machinery 26(1): 57-66. (In Korean)
  7. SAS Institute, SAS V9.1.3, North carolina, USA
  8. Sun, D. W. and C. Byrne. 1998. Selection of EMC/ERH isotherm equations for rapeseed. J. of Agriculture Engineering Research 69:307-315 https://doi.org/10.1006/jaer.1997.0249

Cited by

  1. Latent Heat of Water Vapor of Rough Rice, Brown Rice, White Rice and Rice Husk vol.36, pp.4, 2011, https://doi.org/10.5307/JBE.2011.36.4.267
  2. Thin layer drying characteristics of rapeseed (Brassica napus L.) vol.47, pp.1, 2011, https://doi.org/10.1016/j.jspr.2010.05.006