Essays about: "compressor cascade."

Showing result 1 - 5 of 6 essays containing the words compressor cascade..

  1. 1. RANS & WMLES Simulations of Compressor Corner Separation

    University essay from KTH/Mekanik

    Author : Arthur Poulain; [2019]
    Keywords : Corner Separation; Compressor Linear Cascade; RANS; Wall-Modeled LES; Boundary Layer; Anisotropy; Hörnseparation; Kompressor Linjär Kaskad; RANS; Vägg-Modell LES; Gränsskikt; Anisotropi;

    Abstract : In axial compressor, corner separation phenomenon can occur between the blade surface and the hub. This leads to high total pressure losses, blockage and may worsen to surge. Various studies on NACA65-009 blade were previously performed experimentally and numerically to predict the corner separation. READ MORE

  3. 2. Influence on tip leakage flow in a compressor cascade with plasma actuation

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Haotian Wang; [2019]
    Keywords : Flow control; DBD Plasma actuation; phenomenological model; numerical simulation; tip leakage flow; compressor cascade.; Flödesreglering; DBD Plasma‐aktuator; numerisk simulering; toppspelsflöde; kompressor kaskad.;

    Abstract : As one of the key components of aero engines, compressor is required to endure higher pressure,  possess  higher  efficiency  and  wider  operating  range. Intensive studies have been made on tip leakage flow and researchers find that by reasonably organizing tip leakage flow, aero engines are  more likely to achieve better performance and reliability. READ MORE

  4. 3. Waste heat recovery from SSAB’s Steel plant in Oxelösund using a Heat Pump

    University essay from KTH/Energiteknik

    Author : Amir Abbas Sohani; [2016]
    Keywords : ;

    Abstract : Detta projekt är inriktat på spillvärmepotentialer inom järn och stålindustrin. Högtemperaturvärme-pumpar för medelvarma temperaturkällor har modellerats. SSABs stålverk i Oxelusund har använts som exempel. Järn- och stålindustrin i Sverige är storkonsument av energi, tillsammans med pappers och massaindustrin. READ MORE

  5. 4. Compression and Shaping of Femtosecond Laser Pulses for Coherent Two-Dimensional Nanoscopy

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Author : Lukas Wittenbecher; [2016]
    Keywords : Femtosecond pulse shaping; Ultrafast optics; Liquid crystal spatial light modulator; Coherent two-dimensional nanoscopy; Dispersion compensation; Physics and Astronomy;

    Abstract : Femtosecond pulse shaping is a versatile tool that enables the generation of ultrashort laser pulses with nearly arbitrary temporal shapes. Among others, the technique is of use in ultrafast spectroscopy experiments where it can be employed for dispersion control and the generation of well-defined laser pulse sequences. READ MORE

  6. 5. Field Measurements and Evaluation of CO2 Refrigeration Systems for Supermarkets

    University essay from KTH/Energiteknik

    Author : Johan Kullheim; [2011]
    Keywords : CO2; Measurements; Refrigeration; Supermarkets;

    Abstract : In this thesis, three supermarket refrigeration systems are evaluated; two trans-critical DX CO2 systems and one R404A/CO2 cascade system. Field measurements of energy consumption, temperatures, pressures, and compressor motor frequency are made using the computer programs IWMAC and LDS. READ MORE