Sökning: "forced convection cooling"

Hittade 5 uppsatser innehållade orden forced convection cooling.

  1. 1. Study on Lithium Battery Thermal Analysis For E-bike

    Magister-uppsats, Högskolan i Halmstad

    Författare :Sreekuttan Vijayan; Jais Jaimon; [2023]
    Nyckelord :Lithium-ion battery; e-bike; thermal analysis; forced convection cooling; natural air convection; temperature distribution; outlet ports; computational fluid dynamics;

    Sammanfattning : E-bikes, often known as electric bicycles, are becoming more and more well-liked as green modes of mobility. High-capacity lithium-ion (Li-ion) batteries are utilised to power these e-bikes because of their extended cycle life, high energy density, and low self-discharge rate. LÄS MER

  3. 2. Termisk modellering växellåda G33CMR & G25CM

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :David Östlund Svensson; [2021]
    Nyckelord :Termisk modellering;

    Sammanfattning :  Det finns inte någon växellåda som är 100% effektiv, därför bildas det alltid en mängd värme under drift. Vid hög belastning ökar värmen och för att växellådan ska få arbeta inom önskat temperaturintervall så kyls en del av den värmen bort. Scania tillhandhåller tre typer av prestandasteg för kylning. 1. LÄS MER

  4. 3. Decreasing charging time of Lithium-Ion Battery by controlling temperature during the process

    Magister-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Seyedhafez Sadeghi Meykola; [2020]
    Nyckelord :Lithium-Ion; Battery; Cooling system;

    Sammanfattning : In this report, which is written for Halmstad University and on behalf of Semcon, a mechanical design process was implemented to evaluate the possibility of executing a low-cost cooling system for one of the battery company’s products. The report started from the background of former studies to clarify the problem and finding existing solutions in the first step and following up with developing concepts based on gathered information from the literature study. LÄS MER

  5. 4. An experimental study on an evaporative cooler for hot rural areas

    Kandidat-uppsats, KTH/Energiteknik

    Författare :Katarina Gustafsson; Hanna Simson; [2016]
    Nyckelord :;

    Sammanfattning : In developing countries about 40 % of the food-waste is due to post-harvest losses, such as improper storage. The Zeer-pot is an evaporative cooler, which cools the inside by convective heat transfer, and can be used to keep fruits and vegetables fresh longer. LÄS MER

  7. 5. Heat exchange phenomena and COP evaluation in heat pump systems coupled to single borehole heat exchangers

    Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

    Författare :Francesco Casellato; [2013]
    Nyckelord :borehole; COP; convection; geothermal; heat pump;

    Sammanfattning : In recent years a growing interest in Borehole Heat Exchangers (BHEs) has been shown in Europe thanks to the increase of installations in systems connected to Ground Source Heat Pumps (GSHPs) used for heating and cooling needs. Different geometries and technical solutions have been de- veloped in order to improve heat exchange with the ground, accompanied by several descriptive models. LÄS MER