Essays about: "KF"

Showing result 16 - 20 of 30 essays containing the word KF.

  1. 16. SECONDARY FLUIDS USED IN INDIRECT REFRIGERATION SYSTEMS IN SWEDEN

    University essay from KTH/Tillämpad termodynamik och kylteknik

    Author : Patrick Javier Salom Munoz; [2015]
    Keywords : Secondary fluids; ground source heat pumps; indirect refrigeration system; regulations; Swedish market;

    Abstract : Interest in indirect (secondary) refrigeration systems has grown since the discovery of the negative effect of environmentally hazardous refrigerants and leakage problems from direct expansion systems. Among the positive effects of indirect systems are: decreased quantities of primary refrigerant, factory built units and confinement of refrigerant to the machine room. READ MORE

  3. 17. The impact of algal toxicity on life-cycle impact assessment of plastic additives and the potential of using QSAR predictions to fill the algae data gap

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Julia Grönholdt Palm; [2014]
    Keywords : LCIA; Impact assessment; QSAR; LCA; algae; plastic; additives; screening; Earth and Environmental Sciences;

    Abstract : Purpose There is a need to find a quick way to assess the impacts of the growing amount of globally manufactured and emitted chemical substances. This paper evaluates the use of Quantitative Structure Activity Relationships (QSAR) for predicting environmental effects of plastic additives in Life Cycle Impact Assessment (LCIA). READ MORE

  4. 18. Modeling and Observer Design of a Nonlinear LCL Filter for Three-Phase Grid-Connected Voltage Source Converter

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Taravat Saryan; [2014]
    Keywords : Technology and Engineering;

    Abstract : This work presents an observer design for grid current and capacitor voltage of voltage source pulse-width modulation (PWM) converters with LCL filter. Theoretical aspects including the mathematical LCL filter system observability, observer placement strategy and practical discretization implementation. READ MORE

  5. 19. Fault Detection in WLAN Location Fingerprinting Systems Using Smartphone Inertial Sensors

    University essay from Kommunikationssystem; Tekniska högskolan

    Author : Raja Umair Haider; [2012]
    Keywords : AP; LF; KF; IMU; WLAN;

    Abstract : Indoor positioning is a rapidly growing research area, enabling new innovative location-aware applications and user-oriented services. Location Fingerprinting (LF) is the positioning technique of coupling a physical location with observed radio signal measurements. READ MORE

  6. 20. Regional Precipitation Study in Central America, Using the WRF Model

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Tito Maldonado; [2012]
    Keywords : WRF; Central America; precipitation; dynamical downscaling; regional models; reanalysis; cumulus parameterization schemes.; WRF; Centralamerika; nederbörd; dynamiska nedskalning; regionala modeller; reanalys; cumulus parametrisering system;

    Abstract : Using the regional climate model WRF, and the NCEP-NCAR Reanalysis Project data asboundary and initial conditions, regional precipitation was estimated by means of thedynamical downscaling technique for two selected periods, January 2000 and September2007. These months show very particular climatic characteristics of the precipitationregimen in Central America, like dry (wet) conditions in the Pacific (Caribbean) coast of theCentral American isthmus, in January, and wet (dry) conditions, respectively in each coast,during September. READ MORE