Essays about: "värme"

Showing result 16 - 20 of 467 essays containing the word värme.

1. 16. Dynamic Modeling of Heat Power System : Modeling of a Heat Power System Using Physical and Data-driven Methods and Investigation of a Moving Boundary Method

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Albin Gustafsson; [2023]
   Keywords : System identification; Dynamic modeling; Organic Rankine cycle; Moving boundary; Thermodynamics.; System identifikation; Dynamisk modellering; Organisk Rankinecykel; Rörliga randvillkor; Termodynamik.;

   Abstract : Our society is becoming more and more electrified every day. However, a significant portion of the world’s electricity generation relies on the combustion of fossil fuels to produce heat, which is subsequently harnessed to generate electricity. One way of generating electricity from heat is by utilizing a Rankine cycle. READ MORE

3. 17. Assessing the EnvironmentalPerformance of an In-Store VerticalFarming System : Identifying environmental hotspots for an in-store hydroponic vertical farmingsystem, using Life Cycle Assessment

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Axel Karlsson; [2023]
   Keywords : Vertical Farming”; “Life Cycle Assessment; Sweden; Environmental impacts; industrial symbiosis; Urban farming; Vertical Farming; Livscykelanalys; Sverige; Miljöpåverkan; Industriell symbios; Stadsodling;

   Abstract : The world is facing many challenges to be able to ensure food security, such as anincreased food demand coming from an expanding world population andurbanisation, worsened agricultural opportunities from increased land deteriorationand significant environmental impacts coming from the food sector. Thus, there is aneed for new agricultural solutions to meet our needs whilst decreasing impactssimultaneously. READ MORE

4. 18. Numerical modeling of airflow on the cathode-side of a bipolar flow plate : How the formed geometry affects the pressure drop and flow distribution in a hydrogen fuel cell

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Olivia Johansson; [2023]
   Keywords : Performance; Cross-sectional geometry; Computational fluid dynamics;

   Abstract : Climate change and rising temperatures is a well-known problem. To tackle global warming a transition from fossil fuels to renewable and reliable energy sources is necessary. Hydrogen, in fuel cells, is proposed to replace diesel and gasoline in the transport sector. READ MORE

5. 19. Litteraturstudie - Energieffektivisering av livsmedelsbutiker genom nyttjande av överskottsvärme

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

   Author : Christ Asadour; Teodor Nymark; [2023]
   Keywords : ;

   Abstract : Generellt sett har livsmedelsbutiker ett stort behov av enrgi i form av el, värme, komfortkyla och livsmedelskyla. Livsmedelsbutikers höga elanvändning utgör 3% av Sveriges totala elanvändning. En betydande del av elanvändningen går till kylsystem och genererar på så vis överskottsvärme från kondensorn som ofta slösas bort. READ MORE

6. 20. Scaling and optimisation of Hydrogengeneration in correlation with Wind parkenergy production : Involving the development of a tool for case simulation

   University essay from Umeå universitet/Institutionen för fysik

   Author : Ida Kindlund; [2023]
   Keywords : Reversible Hydogen generation; Simlation; Planning and optimisation;

   Abstract : In the global transition from fossil fuels to renewable energy sources, hydrogen is predicted to play a large role. It is particularly interesting in areas where batteries and electrification are not viable options, as well as stabilisation of power deliverance from volatile, green energy production. READ MORE