Essays about: "air change efficiency"

Showing result 1 - 5 of 55 essays containing the words air change efficiency.

  1. 1. Experimental investigation of ventilation performance of corner placed stratum ventilation in an office environment

    University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

    Author : Gasper Choonya; [2019]
    Keywords : Stratum ventilation; local air change index; air change efficiency; ventilation effectiveness; draught rate; percentage dissatisfied; heat removal effectiveness;

    Abstract : Energy use in buildings account for about one third of the total global energy supply and contributes as much as 30% of the anthropogenic greenhouse gas emissions. It is estimated that energy use in buildings will increase to 67% by 2030. READ MORE

  2. 2. High temperature corrosion in exhaust application for heavy-duty trucks

    University essay from KTH/Materialvetenskap

    Author : Alice Moya; [2019]
    Keywords : high temperature corrosion; austenitic steel; cast iron; cast steel; oxidation; exhaust gas; engine; heavy-duty trucks;

    Abstract : Increasing awareness of environmental protection has made both governments and the industry aim for lowering carbon dioxide emissions. For the transport industry this means increasing engine efficiency, replacing fossil fuels with bio-based fuels or full electrification. READ MORE

  3. 3. Sensitivity and Uncertainty Analysis of Building Parameters integrating energy, daylight and thermal comfort

    University essay from Lunds universitet/Energi och ByggnadsDesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Author : Tian Tan; Magdalena Szumanska; [2019]
    Keywords : Sensitivity analysis; Uncertainty analysis; Multidisciplinary analysis; Building parameters; Energy consumption; Daylight; Thermal comfort; Optimization; Technology and Engineering;

    Abstract : The objective of this thesis was to perform multidisciplinary sensitivity and uncertainty analysis of the building parameters integrating thermal comfort, energy and daylight. The case study of a Danish office building was used for performing the simulations. READ MORE

  4. 4. Experimental Study to Reduce CO Emissions in Skellefteå Kraft's 16 MW Bubbling Fluidized Bed Boiler

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : William Johansson; [2019]
    Keywords : ;

    Abstract : Skellefteå Kraft has had high CO emissions problems in a bubbling fluidized bed (BFB) boiler in Malå.Statistical emissions data from 2013 to 2019 shows plant average emissions of 1230 ppm. Thisexceeds the recommended 440 ppm (6 % O2) that Naturvårdsverket proposes (Naturvårdsverket,2005). READ MORE

  5. 5. Knock model evaluation - Gas engine

    University essay from KTH/Förbränningsmotorteknik

    Author : Nishchay Sharma; [2018]
    Keywords : Knocking; Spark-Ignited; Internal Combustion Engine; Spark-Knock; Empirical Correlation Models; BOOST; Combustion Phasing; Spark-advance; Combustion Duration; Knock Prediction Parameter.; Knack; Otto-förbränning; Förbränningsmotor; Empiriska korrelationsmodeller; BOOST; Förbränningsfasning; Tändvinkel; Förbränningsduration; Knackprediktering;

    Abstract : Knack i en förbränningsmotor är en typ av onormal förbränning. Det är ett komplicerat fenomen som beror på flera fysiska faktorer och resulterar i högfrekventa tryckoscillationer inuti förbränningskammaren. Dessa oscillationer kan skada motorn och fenomenet hämmar motorns effektivitet. READ MORE