Essays about: "local ventilation index"

Found 4 essays containing the words local ventilation index.

  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

  3. 2. Future climate resilience of energy-efficient retrofit projects in central Europe

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

    Author : Jonas Manuel Gremmelspacher; Julija Sivolova; [2019]
    Keywords : Climate change; Future climate; Climate action; Building Performance Simulations; Hygrothermal Simulations; Moisture; Heating demand; Retrofit; Renovation; Building stock; Residential; Dwellings; Thermal envelope; Heating peak loads; Thermal comfort; Indoor environmental quality; Actual case studies; Big data; Denmark; Germany; Iterative workflow; Weather files.; Technology and Engineering;

    Abstract : This study assesses the performance of buildings affected by climate change under future climate predictions for three time-periods until the end of the 21st century. Objects studied are residential multi-storey buildings, originally built before 1970 and retrofitted during the last decade. READ MORE

  4. 3. Ventilation efficiency measurements - a comparison between three supply air methods

    University essay from Lunds universitet/Avdelningen för Energi och byggnadsdesign

    Author : Max Henriksson; Henrik Nilsson; [2016]
    Keywords : Ventilation efficiency; air exchange efficiency; local ventilation index; mean age of air; comparison; mixed ventilation; displacement ventilation; Technology and Engineering;

    Abstract : This study compares the two traditional ventilation methods ; mixed ventilation and displacement ventilation, with a new type of dif fuser which attempts to solve the problem with blockage of the diffuser for the displacement ventilation. This new diffuser called Airshower is a product developed by Airson engineering AB whom is also the company where all simulations and tests for this study were performed in a built office space. READ MORE

  5. 4. Estimation of production losses and measures to reduce thermal stress in dairy production under tropical conditions : results of a field investigation

    University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Author : Malin Qvarnström; [2002]
    Keywords : dairy production; heat stress; tropical conditions; respiration rate; coat temperature; relief measures;

    Abstract : The milk consumption in Asia has increased during the last years. To improve the milk production high yield breeds like Holstein and Jersey are introduced however they are more sensible to the hot and humid climate compared to local breeds. To keep their milk production at a high level some sort of cooling must be used. READ MORE