Essays about: "surface heat fluxes"

Showing result 1 - 5 of 27 essays containing the words surface heat fluxes.

  1. 1. The Development and Testing of Low-Cost Heat Transfer Enhancements for Solar Dryers

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Hoda Mahmoodi; [2023]
    Keywords : Solar dryer; Bhutan; Drying rate; Solar absorber; Technology and Engineering;

    Abstract : In the mountainous regions of Bhutan and Nepal, post-harvest losses cause significant challenges for producers. Open air sun drying is usually used by farmers to preserve their produce. There are many disadvantages to this method. READ MORE

  3. 2. Time to ignition for wood covered with ZnO : A laboratory and theoretical study if ZnO can enhance time to ignition for wood exposed to radiation in the cone calorimeter

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Olina Öhrn; [2023]
    Keywords : ZnO; zinc oxide; cone calorimeter; wood; reaction-to-fire;

    Abstract : In recent years, interest in sustainability and being environmentally friendly has increased. Wood is a durable and renewable building material, which is becoming more common in the constructions industry. In 2002, the government in Sweden adopted a national strategy to promote an increased use of wood in buildings. READ MORE

  4. 3. The cooling potential of Rain Gardens and Green Roofs - The influence on energy partitioning in Kvillebäcken, Gothenburg

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Julia Cederbrant; [2021-07-05]
    Keywords : urban energy balance; urban water balance; SUEWS; energy partitioning; Blue-green infrastructure;

    Abstract : Blue-green infrastructure (BGI) has become a popular way of combating the effects of climate change, both regarding heat mitigation and runoff from precipitation. This thesis aims to understand the potential of two BGI types, namely rain gardens and green roofs, of increasing the latent heat fraction in an urban area and thereby also understand the possible cooling effect from these measures. READ MORE

  5. 4. Comparison of intensified turbulence events in the Baltic Sea

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Linnéa Hallgren; [2021]
    Keywords : turbulence; upper ocean; ocean mixing; parameterization;

    Abstract : Turbulence is important since it affects the exchange of momentum, heat, and trace gases between the atmosphere and the ocean. However, measuring oceanic turbulence is not straightforward and that is why parameterizations that describe turbulence events are important. READ MORE

  6. 5. 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