Trial design engineering Initially, you are required to find the initial factors that would make the first studies the impact of each factor that influences how much factors according to the interested parties. The above issue is described in the topic problem. Can be written as a tree factor and levels to make study photos 1?Figure 1 factors of the process produce SOAP granulesWhen considering the figure 1 has a travel SOAP manufacturing process conditions of devices that have an impact on the change of hardness include SOAP, steam flow rate range studied (975 kg/hr-1644), which is a range input to the process. The percent of valve tank pressure to disregard boplan (43 – 98%), and a percentage of glycerine (1.0-3.5%), which is the range to make the changes. Recipes from the above information, because the known factors that affect the value of the SOAP and it is not necessary to use the method to find the screening variables, but requires. Note the value that is appropriate for the SOAP manufacturing process based on the hardness of SOAP, so it can be used to design the experiments surface reacts (Response Surface Methodology: RSM) can be referenced from (panmet chati, 2545 (2002)) must be assigned to at least level 3 to level testing by primary factors of production process, there are three factors therefore SOAP 1 DL, weaving designs.For SOAP manufacturing process ongsa use Minitab Version 16.0 to Create designs using a Box-Behnken Design Function Access select Stat > Minitab 16.0-DOE-> Response-> Create Surface Response Surface Design can create a table to store the data. Table 2 trial will have all 3 trials. By repeated once, 1, 0,-1 steam flow rate equal to 1,121, 1,279 and 1,437 kg/h. The values 1, 0,-1 percent of the tank's valve pressure equal to 58, 69, acute and 80, and a value of 1, 0,-1 percent Glycerin 1%, equivalent to 2.3% and 3.5%.
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