The estimation of knock-points of fuels by a weighted mean square error criterion

Coetzer, R.L.J.; Rossouw, R.F.; Swarts, André; Viljoen, Carl

doi:10.1016/j.fuel.2006.01.023

Cited by 4 publications

(3 citation statements)

References 20 publications

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Section: Dual Response Optimization Formulationsmentioning

confidence: 99%

“…For example, the decision maker may decide to put more weight on the squared deviation from the target value than on minimizing the variance. Coetzer et al (2006) also developed a weighted criterion for estimation of the start of accelerated auto-ignition of fuels in spark ignition engines. Derringer and Suich (1980) introduced the transformation of the response or quality characteristic to one aggregate measure of performance known as a desirability function.…”

Section: Dual Response Optimization Formulationsmentioning

confidence: 99%

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Dual Response Surface Optimization with Hard-to-Control Variables for Sustainable Gasifier Performance

Coetzer

Rossouw

Lin

2008

Journal of the Royal Statistical Society Series C: Applied Statistics

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Dual response surface optimization of the Sasol-Lurgi fixed bed dry bottom gasification process was carried out by performing response surface modelling and robustness studies on the process variables of interest from a specially equipped full-scale test gasifier. Coal particle size distribution and coal composition are considered as hard-to-control variables during normal operation. The paper discusses the application of statistical robustness studies as a method for determining the optimal settings of process variables that might be hard to control during normal operation. Several dual response surface strategies are evaluated for determining the optimal process variable conditions. It is shown that a narrower particle size distribution is optimal for maximizing gasification performance which is robust against the variability in coal composition. Copyright Journal compilation (c) 2008 Royal Statistical Society.

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Section: Dual Response Optimization Formulationsmentioning

confidence: 99%

Section: Dual Response Optimization Formulationsmentioning

confidence: 99%

Dual Response Surface Optimization with Hard-to-Control Variables for Sustainable Gasifier Performance

Coetzer

Rossouw

Lin

2008

Journal of the Royal Statistical Society Series C: Applied Statistics

View full text Add to dashboard Cite

show abstract

“…If the local temperature of the unburned gases in the end-gas exceeds the mixture selfignition temperature, knocking combustion due to end-gas auto-ignition occurs. Thus, gas pressure oscillations and an audible ringing sound caused by reflecting pressure waves driven by the sudden release of energy are observed (Syrimis and Assanis, 2003, Coetzer et al, 2006, Zhen et al, 2012.…”

Section: Introductionmentioning

confidence: 99%