Essays about: "ventilation effectiveness"

Showing result 1 - 5 of 10 essays containing the words ventilation effectiveness.

  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. Free cooling in data centers : Experimental test of direct airside economization with direct evaporative cooling

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

    Author : Rickard Liikamaa; [2019]
    Keywords : Data center; free cooling; evaporative cooling;

    Abstract : The backbone of the expanding Information and Communication Technology (ICT)-sector are data centers. In these, Information Technology (IT) equipment is housed which provides computational power for e.g. cloud computing and internet services. READ MORE

  3. 3. Cost-effective and energy-efficient renovation measures of multi-family apartment buildings constructed during the million program - Where carbon dioxide emissions minimization is a key issue

    University essay from Lunds universitet/Energi och ByggnadsDesign

    Author : Christofer Svensson; [2017]
    Keywords : Energy efficiency; Cost-effectiveness; Carbon dioxide minimization; Co-benefits; IEA EBC Annex 56; Renovation; The million program; Technology and Engineering;

    Abstract : The Swedish construction and real estate sector has a significant impact on the total national carbon dioxide emissions and energy consumption. Thus, energy efficient and environmentally friendly renovation measures of existing buildings in Sweden plays an important role in the attempt to mitigate the climate changes. READ MORE

  4. 4. Energy simulation for improved ventilation system in a collection of Swedish multi-family houses

    University essay from Högskolan i Gävle/Energisystem

    Author : Taoju Zhang; [2017]
    Keywords : Building energy simulation;

    Abstract : Building sector takes a large part of Swedish domestic energy use. Swedish government had set goal that required energy consumption should decrease by 20% in year 2020 compared to 1995. Public house companies will play an important role in the process. READ MORE

  5. 5. Heat recovery units in ventilation : Investigation of the heat recovery system for LB20 and LB21 in Building 99, University of Gävle

    University essay from Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

    Author : Marta Duarte; [2016]
    Keywords : Heating ventilation and air conditioning systems; heat recovery ventilation; run-around heat recovery; temperature ratio; sensible effectiveness;

    Abstract : Heating, ventilation and air-conditioning (HVAC) systems are widely distributed over the world due to their capacity to adjust some local climate parameters, like temperature, relative humidity, cleanliness and distribution of the air until the desired levels verified in a hypothetical ideal climate. A review of buildings’ energy usage in developed countries shows that in the present this energy service is responsible for a portion of about 20% of the final energy usage on them, increasing up to 50% in hot-humid countries. READ MORE