Browsing AURA by Author "Skomedal, Gunstein"
Now showing items 1-11 of 11
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Cost optimization of green hydrogen production at Pikerfoss RoR hydropower plant
Edvardsdal, Lene (Master thesis, 2024)More sustainable energy solutions are of high interest as the global energy demand continues to grow. Hydropower is a well-developed renewable energy technology that has great potential for integrating power-to-gas technology. ... -
The effect of Mo and Ge reactive elements on high-temperature oxidation of higher manganese silicide
de Padoue Shyikira, Antoine; Akhtar, Naureen; Skomedal, Gunstein; Middleton, Peter Hugh (Journal article; Peer reviewed, 2021)Higher manganese silicide (HMS) alloys (Mnx-αMoαSiy-βGeβ (x = 0.99–1.011, α = 0.005–0.02, y = 1.75, β = 0.005–0.01)) were studied to elucidate the effect of Mo and Ge pertaining to oxidation. Oxidation experiments were ... -
Enhancing TGA-MS Techniques for Improved Gas Detection in Petcoke Gasifiaction
Klausen, Kristoffer (Master thesis, 2024)Denne studien undersøker hvordan petroleumskoks brytes ned under varme ved hjelp av en teknikk kalt termogravimetrisk analyse-massespektrometri. Forskningen hjelper oss å forstå hvordan endringer i temperatur, luftkontroll ... -
Fabrication of a Silicide Thermoelectric Module Employing Fractional Factorial Design Principles
Graff, Joachim Moe; Schuler, Raphael; Song, Xin; Castillo-Hernandez, Gustavo; Skomedal, Gunstein; Enebakk, Erik; Wright, Daniel Nilsen; Stange, Marit Synnøve Sæverud; de Boor, Johannes; Løvvik, Ole Martin; Schrade, Matthias (Journal article; Peer reviewed, 2021) -
High temperature oxidation of higher manganese silicides
de Padoue Shyikira, Antoine; Akhtar, Naureen; Skomedal, Gunstein; Sætre, Tor Oskar; Middleton, Peter Hugh (Journal article; Peer reviewed, 2021) -
Long term stability testing of oxide unicouple thermoelectric modules
Skomedal, Gunstein; Vehus, Tore; Kanas, Nikola; Singh, Sathya Prakash; Einarsrud, Mari-Ann; Wiik, Kjell; Middleton, Peter Hugh (Peer reviewed; Journal article, 2019) -
Methods for enhancing the thermal durability of high-temperature thermoelectric materials
Skomedal, Gunstein; Kristiansen, Nils R.; Engvoll, Marianne; Middleton, Hugh (Journal article; Peer reviewed, 2013)Thermoelectric materials, for example skutterudites and magnesium silicides, are being investigated as promising materials for medium-to-high-temperature waste heat recovery in transport and in industry. A crucial aspect ... -
Performance evaluation and stability of silicide-based thermoelectric modules
de Padoue Shyikira, Antoine; Skomedal, Gunstein; Middleton, Peter Hugh (Journal article; Peer reviewed, 2020)Long-term studies on thermoelectric generators based on N-type magnesium silicide (Mg2.01Si0.49Sn0.5Sb0.01) and P-type higher manganese silicide (Mn0.98Mo0.02Si1.73Ge0.02) materials are presented, in the operating temperature ... -
Performance of a thermoelectric module based on n-type (La0.12Sr0.88)0.95TiO3-δ and p-type Ca3Co4-xO9+δ
Kanas, Nikola; Skomedal, Gunstein; Desissa, Temesgen D.; Feldhoff, Armin; Grande, Tor; Wiik, Kjell; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2020)Here, we present the performance of a thermoelectric (TE) module consisting of n-type (La0.12Sr0.88)0.95TiO3 and p-type Ca3Co4-xO9+δ materials. The main challenge in this investigation was operation of TE module in different ... -
Performance of molybdenum disulfide as anode material in lithium-ion
Solvang, Kristine Lehrmann (Master thesis, 2023)Målet med denne avhandlingen var å forberede og karakterisere det naturlige mineralet molybden disulfid fra den lokale gruven Knaben Gruver, for bruk som anodemateriale i litium-ion-batterier. Prosessen med å rense med ... -
Thermal durability of novel thermoelectric materials for waste heat recovery
Skomedal, Gunstein (Doctoral dissertations at University of Agder;, Doctoral thesis, 2016)Thermoelectric Generators (TEG) are a potential technology for waste heat recovery. At their hearts, thermoelectric materials convert a heat flux into electric current. By placing TEGs on the surface of a waste heat source, ...