Global Journal of Computer Science and Technology, C: Software & Data Engineering, Volume 22 Issue 2

Table 9: Proposed System Running on Manual and Auto Errors with Time (Minutes) System Error Time (Minutes) System Running on Manual System Running on Auto 1 3 1 2 6 2 3 6 2 4 6 1 5 6 1 6 8 2 7 9 1 8 11 1 9 11 2 10 12 2 Table 10: Proposed Run System for Mean and Mean Deviation Error on Auto Run Auto Run True System Error (x) Mean Deviation Error on Auto Run | x - µ | 1 0.5 2 0.5 2 0.5 1 0.5 1 0.5 2 0.5 1 0.5 1 0.5 2 0.5 2 0.5 Mean (µ) E = ∑ = 1.5 (MAD) ∑ | x - µ | = 5 The mean (µ) error of the proposed system running on automatic mode is computed as follows: Mean (µ)Error Therefore, the mean (µ) error of automatic system run mode is 1.5 The mean deviation error of the steam package boiler system running on auto mode is computed as follows: The Mean Deviation Error = (∑ | x - µ | )/n, ……… (2) The Mean Absolute Deviation (MAD) Error = (∑ | x - µ | )/n = 5/10 = 0.5 In computing the standard deviation of the proposed system error on auto run, we must take the square root of the mean absolute deviation (MAD) squares it, divides by the total number of system errors (n) in auto run. = √(5^2/10) = √(25/10) = 1.58113883 ≈ 1.58 From Table10 of the error analysis, the auto run, minimum error is 1 in 1 minute while the maximum error is 2 in 10 minutes. The errors in minute are deduced from the log save error view button on the console and viewing the save logs screen. On auto run mode, Error needed correction = overshoot + errors, this is subtracted from the errors correction done by the system, i.e., Correction Done- Needed correction = System errors, for instance in 2- minute, the system error gives 2 error on auto run. The overshoot was 8, error was 4, error needed correction is 12, correction was 14. This is the same with 4 minutes etc. On manual run mode, the minimum error is 3 in 1 minute while the maximum error is 12 in 10 minutes analyzed from the log save error clicking view button on the console. Error margins were not considered during the MOM, since system runs efficiently on auto, whereas maintenance is done more on manual run of the proposed system. Excel spreadsheet as industry software tool was used for the data analysis of the above system. Table 11: Proposed Run System Mean and Mean Absolute Deviation Error on Manual Run Manual True System Error (x) Mean Deviation Error | x - µ | 3 4.8 6 1.8 6 1.8 6 1.8 6 1.8 8 0.2 9 1.2 11 3.2 11 3.2 12 4.2 Mean (µ) Error = ∑ = 7.8 (MADE) ∑ | x - µ | = 2.4 Steam Package Boiler Expert System for Control and Maintenance of Fertilizer Plants Using Rule-Base Fuzzy Logic Global Journal of Computer Science and Technology Volume XXII Issue II Version I 37 Year 2022 ( ) C © 2022 Global Journals = (∑x)/n = (1+2+2+1+1+2+1+1+2+2)/10 = 1.5…. Standard Déviation = √((∑| x - µ |^2 )/n),…………… (1) (3) where x is the true mean error, µ is the mean error and n the sum of system errors in auto run of the proposed system.