Essays about: "mixing rates"

Showing result 21 - 25 of 26 essays containing the words mixing rates.

  1. 21. Evaluation of modeling ecosystem seasonality in the University of Victoria Earth System Climate Model

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Annika Eisele; [2013]
    Keywords : Biology and Life Sciences;

    Abstract : Abstract Investigating climate model ability to simulate ecosystem seasonality, for instance causes and dynamics of phytoplankton blooms in the North Atlantic, is of major importance, because interannual and seasonal variations in bloom timing, duration and intensity caused by anthropogenic induced global climate change, can lead to species shifts and alterations in the trophic food web and biogeochemical cycles, which otherwise may remain undetected on an annual scale. The seasonal variability of the North Atlantic spring bloom is highly related to surface pCO2 (Takahashi et al. READ MORE

  3. 22. CFD modelling of Retention Aids Dosage Nozzles

    University essay from KTH/Mekanik

    Author : Giuseppe Carmine Fasci; [2012]
    Keywords : ;

    Abstract : The objective of this project is to design, using computational fluid dynamics (CFD), a set of retention aid dosage nozzles that minimize shear levels during their operation. This includes the effect of dosage nozzle size, contour and dosage velocity - absolute and relative to the stock flow. READ MORE

  4. 23. Experimental investigation of EGR mixing and distribution on a HD diesel engine with variable venturi EGR control valve

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Krister Gritzun; Vijayaraghunathan Rajagopal; [2012]
    Keywords : ;

    Abstract : För att klara de allt hårdare emissionskraven utan efterbehandling kan blandning, kontroll och jämn fördelning av EGR mellan dieselmotorns cylindrar komma att bli allt viktigare. Genom att åstadkomma högre inloppstryck än avgasmottryck kan vinster i bränsleförbrukning uppnås men detta skapar problem att tillföra EGR till motorns insugsida. READ MORE

  5. 24. Development of a Continuous Blending System

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Eli Al Hadawi; [2011]
    Keywords : Inline blending; STEP7; HMI; PLC; PID; Technology and Engineering;

    Abstract : The company QB Food Tech designs and installs powder in liquid mixing systems for the food and pharmaceutical industries. The aim of this master thesis is to develop a continuous blending system with concentration output feedback for inline blending of complex products starting from an existing batch process. READ MORE

  6. 25. Effect of resuspension on mineralisation of organic material : Laboratory studies of water movement intensity and concentration of suspended sediment

    University essay from Institutionen för tematisk utbildning och forskning

    Author : Charlotte Stenborg Larsson; [2005]
    Keywords : Mineralisation rate; organic material; resuspension; water movement intensity; suspended sediment;

    Abstract : The Earth’s surface contains of 71% oceans and a large part of the global carbon cycle takes place in the oceans. In the aquatic environment, the sediment-water interface plays an important role for the mineralisation of organic material. One factor that can affect the mineralisation is resuspension. READ MORE