Sökning: "Process Disturbance"

Visar resultat 1 - 5 av 154 avhandlingar innehållade orden Process Disturbance.

  1. 1. A Browning process : The case of Dar es Salaam city

    Författare :Othmar Simtali Mng'ong'o; Lars Orrskog; Kjell Nilsson; KTH; []
    Nyckelord :Social sciences; green plant; green structure; browining process; ecological area; sustainable city; living environment; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : The study is about how green spaces and structures of Dar es Salaam city, quantitatively and qualitatively, are browning out. It also tries to explore the different reasons behind the browning tendency, and what it means to the function of the city and to the daily form of life of the inhabitants. LÄS MER

  3. 2. Utility Disturbance Management in the Process Industry

    Författare :Anna Lindholm; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; utilities; process control; plant-wide disturbances; availability; buffer tanks;

    Sammanfattning : Use of utilities, such as steam and cooling water, is very common at industrial sites. Utilities are often shared between several production areas, and a disturbance in the supply of a utility is therefore likely to affect a large part of the production site, and cause great loss of revenue. LÄS MER

  4. 3. Hierarchical Scheduling and Utility Disturbance Management in the Process Industry

    Författare :Anna Lindholm; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; plant-wide disturbances; utilities; production control; production scheduling; process industry; enterprise modeling; availability; receding horizon control;

    Sammanfattning : This thesis deals with control of production at large-scale process industrial sites in the presence of disturbances. The main focus is on disturbances in the supply of utilities such as steam, cooling water and electricity. LÄS MER

  5. 4. Towards Improved Control of TMP Refining Processes

    Författare :Karin Eriksson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control; dynamic modeling; process limitations; simplified decoupling; Refiner; refining zone temperature; internal interconnections;

    Sammanfattning : The need for improved energy usage has become a key issue in all industrial sectors. In the energy demanding production of mechanical pulps many efforts havefocused on design development, but regarding control of refiners, there is still a potential for improvements. LÄS MER

  7. 5. Resource-aware Wireless Process Control

    Författare :Takuya Iwaki; Karl H. Johansson; Sophie Tarbouriech; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial process control; Networked control systems; Wireless network; Event-triggered control; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : To tackle the ever-growing demands on high-quality and cost-effective industrial production, recent developments in embedded sensing, wireless communication, and cloud computing offer great opportunities. Resource-aware reliable wireless communication and real-time control are needed to leverage these technologies. LÄS MER