Sökning: "mixing rates"

Visar resultat 21 - 25 av 28 uppsatser innehållade orden mixing rates.

  1. 21. Hydraulic Characterization of Diesel Engine Single-Hole Injectors

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Javier Arco Sola; [2015]
    Nyckelord :;

    Sammanfattning : Due to world trend on the emission regulations and greater demand of fuel economy,the research on advanced diesel injector designs is a key factor for the next generation diesel engines. For that reason, it is well established that understanding the effects of the nozzle geometry on the spray development, fuel-air mixing, combustion and pollutants formation is of crucial importance to achieve these goals. LÄS MER

  3. 22. Evaluation of modeling ecosystem seasonality in the University of Victoria Earth System Climate Model

    Master-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Annika Eisele; [2013]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : 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. LÄS MER

  4. 23. CFD modelling of Retention Aids Dosage Nozzles

    Master-uppsats, KTH/Mekanik

    Författare :Giuseppe Carmine Fasci; [2012]
    Nyckelord :;

    Sammanfattning : 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. LÄS MER

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

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Krister Gritzun; Vijayaraghunathan Rajagopal; [2012]
    Nyckelord :;

    Sammanfattning : 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. LÄS MER

  7. 25. Development of a Continuous Blending System

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

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

    Sammanfattning : 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. LÄS MER