Sökning: "Peter Gäärd"

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  1. 1. Kappa Control with Online Analyzer Using Samples from the Digester's Mid-phase

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Peter Gäärd; [2004]
    Nyckelord :Reglerteknik; Kappa Control; Digester Control; Mid-phase Measurement; Online Kappa Analyzer; System Identification; Model Predictive Control; Reglerteknik;

    Sammanfattning : In the pulp industry, digesters are used to disolve lignin in wood chips. The concentration of lignin is measured and is called the Kappa number. In this thesis, the question of whether an online Kappa sensor, taking samples from the mid-phase of the digester, is useful or not is analyzed. LÄS MER