Essays about: "aeration control"

Showing result 1 - 5 of 9 essays containing the words aeration control.

  1. 1. 1D Simulation of Hydraulic Cam Phaser System Utilized in Heavy Duty Vehicles : An Investigation on Attenuation of Phase Oscillations from Cam Torque Disturbances

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Johan Germundsson; [2023]
    Keywords : master thesis; cam phaser; simulation; 1D-simulation; GT-SUITE; GT-ISE; Gamma Technologies; oil aeration; oscillations; heavy-duty; engine; phaser; cam torque; stability; cam phaser system; Scania; Scalia CV;

    Abstract : Cam phasers allow improvements to the efficiency and emissions of internal combustion engines. The usage of hydraulic vane type cam phasers for heavy-duty applications have shown problems with oscillations during testing at Scania CV. To investigate the root cause of the oscillations a detailed 1-d simulation model has been created. READ MORE

  3. 2. Ammonium-Based Aeration Control with Iterative Set-Point Tuning in Wastewater Treatment Plants

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Tom Bärnheim; [2023]
    Keywords : adaptive control; ammonium-based aeration control; ammonium feedback control; iterative set-point tuning; process control; wastewater treatment;

    Abstract : In wastewater treatment plants, the amount of ammonium is one example of a measure to determine the quality of the effluent wastewater. Ammonium is regarded as a hazardous chemical for aqueous ecosystems and can cause eutrophication due to its high nitrogen content. READ MORE

  4. 3. Power-to-Gas and zero-emission buses in Uppsala : challenges and Opportunities from a techno-economic perspective

    University essay from SLU/Dept. of Energy and Technology

    Author : Mårten Rosell; [2021]
    Keywords : Power-to-gas; bränsleceller; medicinsk syrgas; modellering; lönsamhet;

    Abstract : This thesis has explored the use of power-to-gas technology as a means to produce hydrogen for fuel cell electric buses. The municipal council of Uppsala are looking at options to electrify the local city and regional bus fleet but have been faced with power capacity constraints on the local electrical grid. READ MORE

  5. 4. Deammonification efficiency in combined UASB and IFAS system for mainstream WWT

    University essay from KTH/Mark- och vattenteknik

    Author : Noureddine Khayi; [2017]
    Keywords : Ammonium; Nitrite; Nitrate; Deammonification; UASB; MBBR; DO; Aeration; monitoring; on-line control;

    Abstract : The study is about Nitrogen removal from the low concentrated mainstream wastewater after Upflow Anaerobic Sludge Blanket reactor process (UASB) by single-stage Partial Nitritation/Anammox process in a pilot scale reactor at Hammarby Sjöstad in Stockholm. A mixture of various concentrations of dissolved oxygen and different aeration methods have been tested in the pilot scale reactor in five months divided into five periods where the temperature was set at 15° C throughout the study. READ MORE

  6. 5. Innovative Control Strategies for the Partial Nitritation/Anammox Wastewater Treatment Process

    University essay from KTH/Energiteknik

    Author : Evan Scott; [2016]
    Keywords : ;

    Abstract : The project undertaken in this thesis was proposed by IVL Swedish Environmental Research Institute and performed at their R&D facility Hammarby Sjöstadsverk as a part of the EU funded research project R3 Water. A single stage partial nitritation/Anammox system in a moving bed biofilm reactor (MBBR) was controlled using oxidation reduction potential (ORP) in order to evaluate its utility as control parameter. READ MORE