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Visar resultat 1 - 5 av 6 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Energy and Environmental Factors in Food and Beverage Production Systems : An Analysis of Tomatoes, Whisky, and Beer

   Författare :Daniel Danevad; Karl Hillman; Ola Eriksson; Hanna Tuomisto; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; environmental systems analysis; waste management; import; local resources; food production; beverage production; circularity; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : Given the anticipated global population of approximately 10 billion by 2050, the task of ensuring adequate sustenance for all within the constraints of Earth's limited resources presents a significant challenge. The production of food and beverages demands considerable energy investment, as well as other essential resources such as water and nutrients. LÄS MER

3. 2. Design, Synthesis and Characterization of Nanostructured Thermoelectric Materials

   Författare :Bejan Hamawandi; Muhammet Toprak; MARISOL Martin Gonzalez; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Materials chemistry; Material and Nano Physics; Material- och nanofysik; Fysik; Physics;

   Sammanfattning : The demand for energy is rapidly increasing, triggering more carbon emission and global warming. Alternative green energy sources are essential to secure the future generation from the effect of pollution and global warming. LÄS MER

4. 3. Energy System Collaboration as a Vital Measure to Improve District Heating Performance

   Författare :Gottfried Weinberger; Bahram Moshfegh; Shahnaz Amiri; Erik Dahlquist; Högskolan i Gävle; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy system collaboration; District heating; Industrial excess heat; Combined heat and power; Energy system optimization; Metamodeling; Building LCC optimization; Building energy simulation; Cluster energy renovation; Energisystemsamverkan; Fjärrvärme; Industriell överskottsvärme; Kraftvärme; Energisystemoptimering; Metamodellering; Byggnads-LCC-optimering; Byggnadsenergisimulering; Klusterenergirenovering; Hållbar stadsutveckling; Sustainable Urban Development;

   Sammanfattning : With joint commitments by twenty-seven countries under the Paris Agreement, the European Union envisioned a resource-efficient and competitive economy without net emission of greenhouse gases by 2050. Immediate and massive efforts across sectors of energy, industry, and buildings will be required, and district heating (DH), through its ability to integrate efficiency measures on the supply and demand side, can play a central role. LÄS MER

5. 4. Magnetic Refrigeration for Near Room-Temperature Applications

   Författare :Behzad A Monfared; Björn Palm; Joachim Claesson; Andrew Rowe; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Magnetic Refrigeration; Magnetic; Cooling; Magnetocaloric; Life Cycle Assessment; Modeling; Simulation; Optimization; Regeneration; Active Magnetic Regeneration; Bonded Regenerator; Heat Switch; Thermal Diode; Peltier; Solid-State; Prototype; Magnetisk Kylteknik; Magnetisk; Kylning; Magnetokalorisk; Livscykela-nalys; Modellering; Simulering; Optimering; Regenerering; Aktiv Mag-netisk Regenerering; Bunden Regenerator; Värmebrytare; Termodiod; Peltier; Solid-State; Prototyp; Energy Technology; Energiteknik;

   Sammanfattning : Refrigeration plays a crucial role in many different sectors and consumes about 17% of the electricity produced globally. This significant energy consumption implies large share of refrigeration in primary energy consumption and other environmental impacts. LÄS MER

7. 5. On Hybrid Fuel Cell and Battery Systems for Maritime Applications

   Författare :Ariel Chiche; Carina Lagergren; Göran Lindbergh; Ivan Stenius; Lars Eriksson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuel Cell; Autonomous Underwater Vehicles AUVs ; Hybridization; Optimization; Buoyancy; Battery; Hydrogen Storage; Oxygen Storage; Dead-End Anode; Purge; Bränslecell; autonom undervattensfarkost AUV ; hybridisering; optimering; flytkraft; batteri; vätgaslagring; syrelagring.; Chemical Engineering; Kemiteknik; Chemical Engineering; Kemiteknik;

   Sammanfattning : Hydrogen is seen as a key player in leading to a sustainable energy sector and decarbonizing the transport sector. Proton Exchange Membrane Fuel Cells (PEMFCs) consume hydrogen and oxygen to generate water, heat and electricity. LÄS MER