Process monitoring using a combination of data driven techniques and model based data validation

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Current methods for process monitoring

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An industrial case study

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Results and discussions

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Conclusions and perspectives for future work

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H = , ( 9 , * TIME INDEX_M 1/1 1:0 1/1 1:10 1/1 1:21 1/1 1:32 1/1 1:43 1/1 1:54 1/1 2:5 1/1 2:16 1/1 2:27 1/1 2:38 40 48 56 64 72 80 88 96 104 112 120 Non validatedKPI

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H =@ 1 1 Cooling water flow (T/h) Estimation of cooling water flow (T/h)

0 1 2 3 4 5 6 7 8 9 2 3 4 5 6 7

8 ( Correlation factor : 3,242E-1 ) $

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Validated Efficiency (%) Efficiency Soft Sensor (%)

79 80 81 82 83 84 85 86 87 88 79 80 81 82 83 84 85 86 87

88 ( Correlation factor : 9,987E-1 )

Validated Efficiency (%) Efficiency Soft Sensor (%)

79 80 81 82 83 84 85 86 87 88 79 80 81 82 83 84 85 86 87

88 ( Correlation factor : 9,987E-1 )

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Efficiency (%) Nb. Objects 79 80 81 82 83 84 85 86 0 65 130 195 260 325 390 455 520 585 650 Efficiency (%) Nb. Objects 79 80 81 82 83 84 85 86 0 65 130 195 260 325 390 455 520 585 650 H %= 1 = 1

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yesGAZ_MIX_LHVWT_V < 2927,905no TOP-NODE yes no GAZ_MIX_LHVWT_V > 2745,7349 T2 yes no GAZ_MIX_LHVWT_V < 3439,035 T54 yes no FUM_ECO_T_V > 349,53 T55 yes no C12FUTSOR_V > 195,055 T85 T86 T104 T56 T68 yes no C12FUTSOR_V > 237,015 T3 yes no FUME_COM_T_V > 1388,0701 T40 T41 T42 T4 T19 yesGAZ_MIX_LHVWT_V < 2927,905no TOP-NODE yes no GAZ_MIX_LHVWT_V > 2745,7349 T2 yes no GAZ_MIX_LHVWT_V < 3439,035 T54 yes no FUM_ECO_T_V > 349,53 T55 yes no C12FUTSOR_V > 195,055 T85 T86 T104 T56 T68 yes no C12FUTSOR_V > 237,015 T3 yes no FUME_COM_T_V > 1388,0701 T40 T41 T42 T4 T19 H D =