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  • 1
    Electronic Resource
    Electronic Resource
    Effects of nonequimolar reactant flux on the oscillatory oxidation of acetaldehyde (1987)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 91 (1987), S. 2178-2180 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100292a039
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  • 2
    Electronic Resource
    Electronic Resource
    Measurements of [OH] and [CH3CHO] oscillations and phase relations in the combustion of CH3CHO (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 776-783 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Oscillations of the OH radical concentration in the gas-phase oxidation of acetaldehyde in a CSTR are monitored by means of laser-induced fluorescence. The oscillations of acetaldehyde in this reaction are measured with UV absorption. Light emission, pressure, and temperature oscillations are recorded, and phase relations between these oscillations are presented. In an Appendix, we present a 12-step, five-variable, thermokinetic scheme which uses peracetic acid as the branching agent in the chain-branching mechanism. This model qualitatively reproduces the oscillatory behavior found in this combustion system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.452280
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of periodic perturbations on the oscillatory combustion of acetaldehyde (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 868-878 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Periodic perturbations are applied to the input rates of acetaldehyde and oxygen, one at a time, in the combustion of acetaldehyde in a CSTR. We measure periodic responses in five entrainment bands as we vary the frequency and amplitude of the external periodic perturbation. Outside of entrainment bands we find quasiperiodic responses. Next-phase maps of the experimental results are constructed in real time and used in the observation and interpretation of entrainment and quasiperiodic behavior. Within the fundamental entrainment band, we measure critical slowing down and enhancement of the response amplitude. As the bath temperature is increased, so that the oscillatory system approaches a Hopf bifurcation, we observe an increase in the amplitude enhancement. The predictions of a five-variable thermokinetic model agree with the experimental results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451242
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of two periodic perturbations on the oscillatory combustion of acetaldehyde (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 879-886 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Periodic perturbations are applied to the input rates of acetaldehyde and oxygen simultaneously in the combustion of acetaldehyde in a CSTR. With the two perturbations at the same frequency, we measure bistability in entrainment and hysteresis as a function of the phase shift between the two perturbations. The application of a perturbation in the flowrate of one reactant to the system already entrained to a perturbation of the flowrate of the second reactant can cause the system: to become quasiperiodic in both perturbations; to become entrained to both perturbations; to remain entrained, but not phase locked, to the first perturbation; or to become quasiperiodic in the first perturbation but entrained to the second perturbation. We measure the effects of frequency modulated and amplitude modulated acetaldehyde flowrate perturbations; the results compare well with predictions made by a five-variable thermokinetic model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451243
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    Paper (German National Licenses)
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