Design optimisation of aluminium recycling processes using Taguchi technique

Khoei, A.R.; Masters, Ian; Gethin, D. T.

doi:10.1016/s0924-0136(02)00273-x

Cited by 95 publications

(68 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This method has evolved into an established approach for analyzing interaction effects when ranking and screening various controllable factors. Moreover, Taguchi method is applicable to solving a variety of problems involving continuous, discrete and qualitative design variables (Tan and Tang 2001;Khoei et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Optimization of ultrasound assisted extraction of anthocyanins from red cabbage using Taguchi design method

2015

View full text Add to dashboard Cite

There is a growing demand for developing suitable and more efficient extraction of active compounds from the plants and ultrasound is one of these novel methodologies. Moreover, the experimental set up to reach an appropriate condition for an optimum yield is demanding and time consuming. In the present study, Taguchi L 9 orthogonal design was applied to optimize the process parameters (output power, time, temperature and pulse mode) for ultrasound assisted extraction of anthocyanins from red cabbage and the concluding yield of anthocyanin was measured by pH differential method. The statistical analysis revealed that the most important factors contributing to the extraction efficiency were time, temperature and power, respectively and the optimum condition was at 30 min, 15°C and 100 W which could result the maximum anthocyanin yield of about 20.9 mg/L. The theoretical result was confirmed experimentally by carrying out the trials at the optimum condition and evaluating the actual yield.

show abstract

Section: Introductionmentioning

confidence: 99%

Optimization of ultrasound assisted extraction of anthocyanins from red cabbage using Taguchi design method

2015

View full text Add to dashboard Cite

show abstract

“…2, for the addition of small-size Shirasu, magnesium content of the ingot decreased linearly with agitation Si(l)+O 2 (g)=SiO 2 Fig . 9 The standard Gibbs free energies for reactions (1), (2) and (3) and oxide formation as a reference.…”

Section: Discussionmentioning

confidence: 89%

“…As shown in Table 1, Shirasu had about 14 mass% of Al 2 O 3 . The reaction (1) among the SiO 2 and Al 2 O 3 in Shirasu and magnesium in the molten scrap may occur in preference to the reaction (2) between SiO 2 in Shirasu and Magnesium in the molten scrap because the value of ÁG for reaction (1) is lower than that for reaction (2). However, the amount of Al 2 O 3 in Shirasu is small.…”

Section: Discussionmentioning

confidence: 97%

“…Therefore, the reaction shifts from reaction (1) to reaction (2) when all the Al 2 O 3 in Shirasu is consumed by the reaction (1). Although part of the MgO produced by reactions (1) and (2) Assuming that all the Shirasu added reacted with magnesium in the molten scrap by reactions (1) and (2) and all the silicon produced by the dissociation of SiO 2 dissolved into the molten scrap without remaining in the reaction product, magnesium and silicon contents of the ingot, which are calculated from reactions (1) and (2), are shown by dotted lines in Fig. 4.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, most of the recycled products are of a cascade recycle because of the quality degradation due to impurity contamination. 2) In order to promote a horizontal recycling, it is desirable to remove impurity elements from the recycled aluminum ingots.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Removal of Magnesium from Molten Aluminum Scrap by Compound-Separation Method with Shirasu

Hashiguchi

Sueyoshi

2010

Mater. Trans.

View full text Add to dashboard Cite

The removal of magnesium from the molten aluminum scrap containing magnesium was examined by compound-separation method using Shirasu as an additive. When Sirasu is added to the molten aluminum scrap, which is followed by agitation, MgAl 2 O 4 and MgO are formed by the reactions among SiO 2 and Al 2 O 3 in Shirasu and magnesium in the molten scrap. It is feasible to remove magnesium by separating these reaction products as dross. The effect of addition temperature of Shirasu on magnesium removal is smaller than that of the agitation time. In the case of the addition of flaky Shirasu with 63-150 mm of particle size, the amount of magnesium removed increases linearly with agitation time because the over-all reaction is mainly controlled by a surface-controlled reaction. In the case of the addition of granular Shirasu with 300-590 mm of particle size, the amount of magnesium removed increases parabolically with agitation time because the over-all reaction is mainly controlled by a diffusion-controlled reaction. The amount of magnesium removed can be controlled by changing the amount of Shirasu added.

show abstract

Application of Taguchi method in determining optimum level of curing system of NBR/PVC blend

Hafezi

Khorasani

Ziaei

2006

J of Applied Polymer Sci

View full text Add to dashboard Cite

Taguchi method is applied in this study to determine the optimum level of curing system (sulfur, MBTS, and CBS) in a NBR/PVC blend. By considering physicomechanical properties of cured NBR/PVC blend, optimum level of curing system is determined. A fixed master batch formulation of NBR/PVC is used, and the effect of curing system is studied on the physicomechanical properties of NBR/PVC blend, such as tensile strength (TS) and elongation-at-break (EB) before and after aging and also hardness and abrasion. The L9 orthogonal array that includes nine rows and four columns is applied. In this matrix, rows show the experiments and three columns show the amount of three factors (sulfur, MBTS, and CBS) and one column is left arbitrarily as an empty column. In this array, the columns are mutually orthogonal. The optimum physicomechanical properties of cured NBR/PVC blend are at 2 phr sulfur, 2 phr MBTS, and 0.5 phr CBS of curing system.

show abstract

Design optimisation of aluminium recycling processes using Taguchi technique

Cited by 95 publications

References 5 publications

Optimization of ultrasound assisted extraction of anthocyanins from red cabbage using Taguchi design method

Optimization of ultrasound assisted extraction of anthocyanins from red cabbage using Taguchi design method

Removal of Magnesium from Molten Aluminum Scrap by Compound-Separation Method with Shirasu

Application of Taguchi method in determining optimum level of curing system of NBR/PVC blend

Contact Info

Product

Resources

About