Optimizing the parameters of heat transmission in a small heat exchanger with spiral tapes cut as triangles and Aluminum oxide nanofluid using central composite design method

2018 ◽  
Vol 54 (7) ◽  
pp. 2113-2130 ◽  
Author(s):  
Nahid Ghasemi ◽  
Reza Aghayari ◽  
Heydar Maddah
Keyword(s):  
Heat Exchanger ◽  
Aluminum Oxide ◽  
Central Composite Design ◽  
Design Method ◽  
Heat Transmission ◽  
Central Composite

scholarly journals Optimization of Eugenol Extraction from Clove Oil using Response Surface Methodology

2015 ◽  
Vol 9 (11) ◽  
pp. 68
Author(s):  
Widayat Widayat ◽  
Hadiyanto Hadiyanto ◽  
Bambang Cahyono ◽  
Ngadiwiyana Ngadiwiyana
Keyword(s):  
Response Surface Methodology ◽  
Optimum Condition ◽  
Central Composite Design ◽  
Response Surface ◽  
Design Method ◽  
Main Process ◽  
Clove Oil ◽  
Design Variables ◽  
Central Composite

The objective of this research was to obtain optimum condition of eugenol production from clove oil using a central composite design method. The main process occured in the eugenol production was saphonification and neutralization processes. In order to optimize these processes, the ratio of NaOH/clove oil and temperature were studied as design variables i.e. ratio of NaOH/clove oil=1:2.5-1:3.5 while temperature was varied between 40 and 60oC. The yield of eugenol was considered as the main response in of this experiment. The result showed that the optimum condition was achieved when the temperature and the ratio of NaOH/clove oil were 50oC and 2.75:1, respectively and the yield was 39.17%.<br />

Extraction of carotenoids from Lycium ferocissimum fruits for cotton dyeing: Optimization survey based on a central composite design method

2016 ◽  
Vol 17 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Khaled Faidi ◽  
Noureddine Baaka ◽  
Saoussen Hammami ◽  
Ridha El Mokni ◽  
Zine Mighri ◽  
...  
Keyword(s):  
Central Composite Design ◽  
Design Method ◽  
Central Composite ◽  
Cotton Dyeing

scholarly journals Determination and Optimization of Flour for Producing Crispy Baby Tilapia using Plackett Burman Design and Central Composite Design Method

2017 ◽  
Vol 12 (1) ◽  
pp. 1
Author(s):  
Syamdidi Syamdidi ◽  
Diah Ikasari ◽  
Hasta Octavini
Keyword(s):  
Central Composite Design ◽  
Oreochromis Niloticus ◽  
Design Method ◽  
Rice Flour ◽  
Corn Flour ◽  
Optimum Amount ◽  
Burman Design ◽  
Tapioca Flour ◽  
Plackett Burman Design ◽  
Central Composite

Research on processing of crispy baby tilapia (Oreochromis niloticus) was conducted to obtain type and proportion of flour on this product with central composite design method. This research used 6 types of flour, namely wheat flour, rice flour, potato flour, tapioca flour, corn flour and baking powder. Baby tilapia used for this research were 30-40 day old, 2-3 cm long. Parameters observed were sensory (appearance, odor, taste, texture, overall acceptance) and crispness for the physical parameter. The results showed that only two out of six variables gave big effect on the tested response i.e potato and rice flour. Those two variables were then optimized with central composite design method to obtain the best product. The optimization process demonstrated that the optimum amount of potato and rice flour were 58-60 g (22.16-22.92%) and 40-60 g (15.28-22.92%), respectively.

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