Essays about: "Åkersberga"

Found 4 essays containing the word Åkersberga.

  1. 1. Analysis and optimization of a dissolved air flotation process for separation of suspended solids in wastewater

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Oskar Bäck; [2021]
    Keywords : Dissolved air flotation; Effluent recycle rate; Optimization; Recycle flow pressurization; Wastewater;

    Abstract : Margretelund wastewater treatment plant (WWTP) operated by the water utility Roslagsvatten AB, wasbuilt in 1956 and is located in Åkersberga town, Stockholm County, Sweden. Margretelund WWTP waslast renovated in 1999, and has been operated with the same physical, chemical, and biological processessince then. READ MORE

  3. 2. Propane Heat Pump Modelling and Monitoring for System Control Analysis

    University essay from KTH/Tillämpad termodynamik och kylteknik

    Author : Fernando Mengod Bautista; [2019]
    Keywords : ;

    Abstract : The objective of this master thesis was the performance analysis of a non-conventional heating system layout based on a propane heat pump unit. The objective had been pursued by monitoring and modelling the system. First, the project focused on monitoring the system, since for a correct modelling it was necessary to have all the data of the system. READ MORE

  4. 3. Groundwater Flow and Transport Modelling of PFASs in Åkersberga

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Worada Boonraksasat; [2019]
    Keywords : Groundwater modelling; contaminant transport; Visual MODFLOW; MODPATH; MT3DMS; PFASs; AFFFs;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are a group of man-made organic chemicals that have been commercially used since the 1950s in many consumer products, including impregnated textiles, impregnated paper, nonstick products (e.g., Teflon), cleaning agents, and in firefighting foams. READ MORE

  5. 4. Drivers' Speed and Attention in Alternative Designs of an Intersection

    University essay from Institutionen för datavetenskap

    Author : Linda Kronqvist; [2005]
    Keywords : Interdisciplinary studies; driving behaviour; perception; design; eye movements; rumble strips; speed limit; Åkersberga; Stava; expectations; attention; risk; velocity; intersection; TVÄRVETENSKAP;

    Abstract : The Road Administration wants to improve safety at a hazardous, rural road intersection near Åkersberga, Stockholm by changing the design of the intersection. The intersection today is a three-way connection with a small road connecting to a four-lane main road, much similar to a motorway with high speeds although with a speed limit of 90km/h. READ MORE