A Kinetic Study on Solid State Phase Transitions

Beer, Hans; Oswald, H. R.

doi:10.1007/978-3-0348-6736-8_18

Cited by 2 publications

(1 citation statement)

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“…Carroll and Manche's technique (1972) was seleckd since in deducing their methods the reaction rates were not considered to be proportional to the nth power of the undecomposed solid as in the case of homogeneous reactions. It should be noted that the latter assumption was adopted by various other authors but the equations developed can have theoretical significance only in the cases where the values of n are 0, l /~, 2/3 or 1 as indicated by Criado-Morales (1977), Reich-Stivala (1979) and Beer-Oswald (1980). According to Carroll and Manch's method, -dw/dt = kf(w).…”

Section: Calculation Of Actlvatlon Energymentioning

confidence: 99%

Kinetics of pyrolysis of some fire retardants and treated fabrics

et al. 1984

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K k, r R = rate of reaction S T = temperature X = dimensionless pellet radius Y = dimensionless temperature = activity distribution function defined by Eq. 2 = effective thermal conductivity of catalyst pellet = radius of catalyst pellet = selectivity towards the desired reaction Greek Letters a P Y AH 1 (T = parameter defining activity profile according to Eq. 2 = heat of reaction parameter defined by Eq. 14 = dimensionless activation energy = standard enthalpy change of reaction = effectiveness factor = starvation parameter defined by Eq. 10 = modified Thiele modulus defined by Eq. 8 = dimensionless surface rate constant defined by Eq. 7 Subscripts 1,2 S = designates surface conditions = designate desired and undesired reactions

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Section: Calculation Of Actlvatlon Energymentioning

confidence: 99%