Essays about: "Air filter"

Showing result 36 - 40 of 76 essays containing the words Air filter.

  1. 36. Using machine learning to identify the occurrence of changing air masses

    University essay from Uppsala universitet/Institutionen för teknikvetenskaper

    Author : Anund Bergfors; [2018]
    Keywords : machine learning; meteorology; data science; visualization; time series; pattern recognition; logistic regression; data mining; statistics; ai; physics; signal processing; control theory; automatic control; systems theory; information technology; maskininlärning; meteorologi; data science; visualisering; tidsserie; mönsterigenkänning; logistisk regression; datautvinning; statistik; ai; fysik; signalbehandling; reglerteknik; systemteknik; informationsteknologi;

    Abstract : In the forecast data post-processing at the Swedish Meteorological and Hydrological Institute (SMHI) a regular Kalman filter is used to debias the two meter air temperature forecast of the physical models by controlling towards air temperature observations. The Kalman filter however diverges when encountering greater nonlinearities in shifting weather patterns, and can only be manually reset when a new air mass has stabilized itself within its operating region. READ MORE

  3. 37. THE PROSPECT OF LIVING FILTERS : Reducing building sector energy demands by improving indoor air quality

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Joel Berglund; [2018]
    Keywords : Biological filters; air quality; ventilation engineering;

    Abstract : Today people spend all the more time indoors. Asthma, allergies and Sick Building Syndrome (SBS) are affecting an increasing number of people. READ MORE

  4. 38. Estimation of Engine Inlet Air Temperature in Fighter Aircraft

    University essay from Linköpings universitet/Reglerteknik

    Author : Gustav Sandvik; [2018]
    Keywords : system identification; grey box modeling; engine inlet temperature; heat transfer; fighter aircraft;

    Abstract : An accurate estimate of the gasturbine inlet air temperature is essential to the stability of the engine since its control depends on it. Most supersonic military aircrafts have a design with the engine integrated in the fuselage which requires a rather long inlet duct from the inlet opening to the engine face. READ MORE

  5. 39. En studie med teoretisk modell och CFD-simuleringar av luftflödet i en värmepumpstorktumlare

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Christofer Svensson; [2018]
    Keywords : CFD; low velocity flow; pressure distrubution; tumble dryer; Technology and Engineering;

    Abstract : Drying clothes is an essential but energy demanding process in modern society. A common way to dry clothes is tumble drying. Electrolux is one of the world leading manufacturers of household appliances and currently is working on a heat pump tumble dryer product. READ MORE

  6. 40. CFD-simulations of urea-waterspray in an after-treatment systemusing Star-CCM+

    University essay from KTH/Mekanik

    Author : Emelie Trigell; [2018]
    Keywords : after-treatment systems; selective catalytic reaction SCR ; AdBlue; multiphase flow; multi-component liquid; Unsteady Reynolds Average Navier Stokes RANS ; wall film formation; solid deposits; efterbehandlingssystem; selektiva katalytiska reaktioner; AdBlue; flerfasstr ¨ommning; flerkomponentvätska; Unsteady Reynolds Average Navier Stokes; väggfilm; avlagringar;

    Abstract : The legislation has forced the vehicle industry to reduce tail-end emissions. The air pollutant nitrogen oxide (NOX) has been shown to have a negative impact on human health and the environment. One of the key technologies to reduce the levels of NOX emitted from a vehicle is by implementing an after-treatment system. READ MORE