Blar i Institutt for energi og prosessteknikk på forfatter "Jenssen, Sigmund"
-
Design and measurement of a CO2 refrigeration system with integrated propane subcooler at high air temperature operations
Bertelsen, Synne Kathinka; Haugsdal, Stine Børslid (Master thesis, 2015)After the rediscovery of CO2 as a prominent, environmentally benign working fluid, several technological modifications for the basic CO2 refrigeration cycle has been reviewed. These have been presented as solutions to the ... -
Höchtemperatur-Wärmepumpen mit natürlichen Kältemitteln : Fallstudien zur HTWP-Integration für industrielle Kälte- und Prozessheisswasserherstellung
Schlemminger, Christian; Ahrens, Marcel Ulrich; Foslie, Sverre Stefanussen; Moen, Ole Marius; Bantle, Michael; Hafner, Armin; Jenssen, Sigmund (Chapter, 2021)Thermische Prozesse in der Nahrungsmittelindustrie, wie z. B. Molkereien sind oftmals eine Kombination aus Erwärmung und Abkühlung eines Produktes. Prozesskühlung wird dabei meistens mittels einer Wärmepumpe erzielt, wobei ... -
Integrated CO2 refrigeration and heat pump system for a dairy plant: Energy analysis and potential for cold thermal energy storage
Selvnes, Håkon; Jenssen, Sigmund; Sevault, Alexis Gerard Edouard; Bengsch, Jan; Widell, Kristina Marianne Norne; Ahrens, Marcel Ulrich; Ren, Shuai; Hafner, Armin (Chapter, 2023)Dairy processing is considered very energy-intensive due to significant thermal demands for both cooling and heating at different temperature levels. Conventional dairy plants have separate systems for supplying the various ... -
Integrated CO2 refrigeration and heat pump systems for dairies
Selvnes, Håkon; Jenssen, Sigmund; Sevault, Alexis; Widell, Kristina Norne; Ahrens, Marcel Ulrich; Ren, Shuai; Hafner, Armin (Chapter, 2022)Production facilities in the food industry are large consumers of electricity and thermal energy due to energyintensive processes such as steam production, cleaning, sanitising, refrigeration and drying. Furthermore, there ...