1997
DOI: 10.1080/00102209708935682
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A further Note no Active Cpmtrol of Combustion instabilities Besed on Hyeteresis

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Cited by 19 publications
(14 citation statements)
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“…For stabilization using hysteresis, we need a pulse of sufficient duration and height so that the equivalence ratio ¦ C can become effective following which the system can return to the desired operating point B in Figure 2 , stabilization will occur. This confirms the observations (O1)-(O3) in [5]. As with the infinite switching strategy, we note that the robustness of this single pulse strategy is non-existent; as long as perturbations are present, the operating point will move from è to ¥ causing pulsing to be invoked repeatedly.…”
Section: Stabilization In the Presence Of Hysteresissupporting
confidence: 72%
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“…For stabilization using hysteresis, we need a pulse of sufficient duration and height so that the equivalence ratio ¦ C can become effective following which the system can return to the desired operating point B in Figure 2 , stabilization will occur. This confirms the observations (O1)-(O3) in [5]. As with the infinite switching strategy, we note that the robustness of this single pulse strategy is non-existent; as long as perturbations are present, the operating point will move from è to ¥ causing pulsing to be invoked repeatedly.…”
Section: Stabilization In the Presence Of Hysteresissupporting
confidence: 72%
“…This is similar to the stable-unstable switching we considered. A third statement we can make is It is quite likely that the primary loop of the hysteresis curve in [5,4] corresponded to an equivalence ratio change that is commensurate with a 25% change in the fuel-flow rate. This discussion shows that (39) provides sufficient conditions for stabilization with infinite switching in the presence of hysteresis.…”
Section: Stabilization In the Presence Of Hysteresismentioning
confidence: 99%
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“…In [3], a similar low-frequency modulation was used. In [4,5], the presence of hysteresis in the combustor was used to design a low-frequency pulsing strategy to suppress the pressure oscillations. In [1], a 20 kW gas turbine combustor was stabilized, with a resonant frequency of 300 Hz and an equivalence ratio of 0.85, using a fuel-injector oscillated at 50 Hz and at duty cycles between 0.36 and 0.5.…”
mentioning
confidence: 99%