Essays about: "radiation thermal mass"

Showing result 1 - 5 of 12 essays containing the words radiation thermal mass.

  1. 1. Urea-Based Treatments of Unretted Hemp Fibres from Residual Streams

    University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Author : Danilo Esteban Ortiz Sarasty; [2023]
    Keywords : Finola waste; stalks; unretted hemp fibres; degumming; cold urea alkali; microwave-urea;

    Abstract : More sustainable and efficient degumming methods are required to extract finner bast fibres, especially from agro-industrial waste streams such as stalks from hemp for food purposes. For this reason, in this study, two urea-based treatments were evaluated as degumming alternatives for unretted hemp fibres from residual streams, one at cold and alkaline conditions (CUA) and the other in combination with microwave radiation (MWU). READ MORE

  3. 2. A Numerical Study of Melt Pool Heat Transfer in the IVR of a PWR

    University essay from KTH/Fysik

    Author : Yuer Zhao; [2021]
    Keywords : In-vessel melt retention; corium pool; Zr oxidation ratio; melt pool convection; CFD; SST k-ω turbulence model; Smältretention i kärlet; koriumpöl; Zr-oxidationsförhållande; konvektion i en smältpöl; CFD; SST k-ω turbulensmodell;

    Abstract : This thesis aims to provide the thermal condition of melt pool convection by CFD simulation, which is important to the assessment of the invessel melt retention (IVR) strategy widely adopted in Generation III pressurized water reactors (PWRs). As a severe accident mitigation measure, the IVR strategy is realized through external cooling of the lower head of a reactor pressure vessel (RPV). READ MORE

  4. 3. Development of a configurable model for temperature distribution estimation in multifamily houses with limited amount of sensors

    University essay from KTH/Tillämpad termodynamik och kylteknik

    Author : Federica Bozzi; [2019]
    Keywords : ;

    Abstract : The biggest environmental challenge of the current century is limiting the CO2 emissions in order to contrast the global warming and keep the temperature increase below 2.0K with respect to the pre-industrial age. For succeeding in this goal, significant changes are required in all sectors, including the energy one. READ MORE

  5. 4. The Almighty Quasar — Destroyer of Worlds

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Julia Ahlvind; [2019]
    Keywords : Astronomy; Habitability; Quasars; Active galactic nucleus; AGN;

    Abstract : In the study of habitability of terrestrial exoplanets, both life-supporting conditions and the prevalence of transient life-threatening events need to be considered. One type of hazardous effect that has so far not received much attention is the thermal effect of a nearby active galactic nucleus (AGN), or in this particular case, the class of the AGN known as a quasar. READ MORE

  6. 5. An integrated brake disc and electric drive for vehicle propulsion : A FEASIBILITY STUDY

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Johan Linder; [2016]
    Keywords : Axial flux; brake disc; core less rotor; in wheel motor; hub motor; quarter car model; segmented rotor; switch reluctance machine; single teeth winding.; Axialflödes; bromsskiva; enkeltandad lindning; hjulmotor; hub motor kvartfordonsmodell; rygglös rotor; segment rotor; variabel reluktansmaskin;

    Abstract : In this thesis, the feasibility to integrate an brake disc and electric machine is investigated. In wheel motors (IWMs) have several advantages, such as saving space in the vehicle, individual and direct control at the wheels and the absence of a mechanical transmission. READ MORE