Essays about: "Frikyla."

Showing result 1 - 5 of 7 essays containing the word Frikyla..

  1. 1. Solar Photovoltaic Thermal Collectors and Ground Source Heat Pumps for Commercial Buildings : Case study in Sweden

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Doris Dijak; Elin Torstensson; [2023]
    Keywords : Ground Source Heat Pump; Photovoltaic Thermal Collectors; Borehole Thermal Energy Storage; Free Cooling.; Bergvärmepumpssystem; Termiska Solceller; Borrhålsbaserade Termiska Energilager; Frikyla.;

    Abstract : In order to reduce emissions from the building sector, which stands for than a fifth of the global energy consumption today, efficient and fossil free heating and cooling systems are of importance. This study investigates the combination of solar photovoltaic thermal collectors and ground source heat pump systems in order to regenerate energy to the ground in combination with free cooling. READ MORE

  2. 2. Free cooling and PVT integration in a ground-source heat pump (GSHP) system

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Christopher Pourier; [2023]
    Keywords : Ground-source heat pump; borehole; GSHP; photovoltaic thermal collector; PVT; free cooling; Ytjordvärmepump; borrhål; GSHP; solfångare; PVT; frikylning;

    Abstract : The performance of ground-source heat pump (GSHP) systems can be negatively affected over time by soil temperature degradation of boreholes (BH) in heating dominated climates. Land area is scarce in the dense urban environments typical of multi-family houses (MFH) and can lead to accelerated degradation- in tight BH fields. READ MORE

  3. 3. Data center cooling solutions : A techno-economical case study of a data center in Sweden

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Joel Sjökvist; Fredrik Magnusson; [2022]
    Keywords : Energy systems; Data center cooling; Free cooling; Air cooling; Geothermal cooling; Mechanical cooling; District cooling; Building conversion; Dry cooler; Cooling machine; Borehole; PUE;

    Abstract : Given the coinciding growth-trend in the production of consumer electronics and generation of data, the increase in server halls and data centers, as a means for hosting storage capacity for the generated data, has been prominent over the last decades. The establishment of data centers in already existing infrastructure can entail major changes in terms of energy system design. READ MORE

  4. 4. Optimization of Distributed Cooling and Cold Storage in Sweden : Case Study - Norrenergi AB

    University essay from KTH/Energiteknik

    Author : Biramo Yifru Woldemariam; [2019]
    Keywords : cold storage; cooling machines; district cooling; free cooling; heat pumps; power-to cold; kyllager; kylmaskiner; fjärrkyla; frikyla; värmepumpar; kraftkyla;

    Abstract : District cooling supply is vital for service, commercial and industrial sectors like hospitals, data centers, supermarkets and sensitive laboratory facilities. The main cooling demand in the case of Sweden also originates from these sectors. READ MORE

  5. 5. Chimney Effect in Data Centers : On the possibility to achieve natural draft through servers

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

    Author : Sebastian Fredriksson; [2017]
    Keywords : ;

    Abstract : Data centers has in recent years experienced a rapid growth in numbers and size. Essentially, data centers are facilities housing IT equipment such as servers, switches and other network devices which use large amounts of electrical energy. Electrical energy is converted to heat by the data processing units in servers and therefore demand cooling. READ MORE