Cryogenic Freezing Process Optimization Based On Desirability Function on the Path of Steepest Ascent

This paper presents a comparative study of statistical methods for the multi-response surface optimization of a cryogenic freezing process. Taguchi design and analysis and steepest ascent methods based on the desirability function were conducted to ascertain the influential factors of a cryogenic freezing process and their optimal levels. The more preferable levels of the set point, exhaust fan speed, retention time and flow direction are set at -90oC, 20 Hz, 18 minutes and Counter Current, respectively. The overall desirability level is 0.7044.

• R. Uporn
• P. Luangpaiboon

• Cryogenic Freezing Process
• Taguchi Design and Analysis
• Response Surface Method
• Steepest Ascent Method and Desirability Function Approach.

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