The use of Arrhenius kinetic model to predict activation energies in hardwood-water systems


Sahin H. T.

SURFACE REVIEW AND LETTERS, cilt.14, ss.999-1005, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 14 Konu: 5
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1142/s0218625x07010512
  • Dergi Adı: SURFACE REVIEW AND LETTERS
  • Sayfa Sayıları: ss.999-1005

Özet

In this study, water swelling coefficients and activation energies for eucalyptus and poplar woods were calculated. The swelling properties of both species appear to directly proportional dependence on temperature and its directions. In the tangential direction, the swelling rate coefficients of eucalyptus ranged from 0.30 to 0.69 are greater than that of poplar which ranged from 0.24 to 0.55. In comparison to average activation energy (Ea), poplar approximately have 2.6 kJ/mole higher Ea than eucalyptus (36.7 vs 39.3 kJ/mole). The comparison and the measured results reveal that the swelling response of both woods with temperature can be quite well predicted using Arrhenius kinetic theory.