Blar i Publikasjoner fra CRIStin - SINTEF Ocean på forfatter "Hafner, Armin"
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Application Of Refrigeration Technologies For Energy Efficient Production Of Fish Protein Hydrolysates
Sherman, Prem Kumar; Tolstorebrov, Ignat; Widell, Kristina Norne; Hafner, Armin; Nordtvedt, Tom Ståle (Chapter; Peer reviewed, 2022)Fish protein hydrolysate (FPH) is one of the most efficient and sustainable way to recover the valuable nutrients from fish remaining materials and has a widespread application. However, the production of FPH demands ... -
A comparative study to investigate two configurations of a two-stage evaporator in a CO2 heat pump chiller
Hazarika, Mihir Mouchum; Hafner, Armin; Bengsch, Jan (Chapter; Peer reviewed, 2023)This study is carried out to investigate the performance of a CO2 heat pump chiller that provides heating and cooling simultaneously. For heating applications, hot water is produced at 90°C; while for cooling applications, ... -
Integration of gravity-fed evaporators in CO2 based heat-pump chillers
Hazarika, Mihir Mouchum; Bengsch, Jan; Hafsås, Johan; Hafner, Armin; Svendsen, Eirik Starheim; Ye, Zuliang (Chapter; Peer reviewed, 2022)This study is carried out to model a gravity-fed evaporator for CO2 based heat-pump chillers. The gravity-fed evaporator loop consists of a separator, a downcomer, a heat exchanger, and a riser. The working principle is ... -
Modelling of Crystallization During Freeze-Concentration of Hydrolysates
Khan, Muhammad Umar; Tolstorebrov, Ignat; Widell, Kristina Norne; Hafner, Armin; Nordtvedt, Tom Ståle (Chapter; Peer reviewed, 2022)Dewatering of fish protein hydrolysates is energy intensive process. The freeze concentration is one of the solutions, which provide high quality of concentrate, energy efficiency and sustainability of the hydrolysate ... -
Parametric study of low-temperature thermal energy storage using carbon dioxide as the phase change material in pillow plate heat exchangers
Mastani Joybari, Mahmood; Selvnes, Håkon; Vingelsgård, Erling; Sevault, Alexis; Hafner, Armin (Peer reviewed; Journal article, 2022)Industrial low-temperature freezing applications are often batch processes, requiring a lot of energy, exerting stress on the electrical grid. To relieve this stress, thermal energy storage can be used. However, there is ... -
Performance evaluation of high-temperature heat pump systems for hot water and steam generation in food processing
Ren, Shuai; Ahrens, Marcel Ulrich; Hafner, Armin; Widell, Kristina Norne (Chapter; Peer reviewed, 2022)A large amount of fossil fuels is consumed for hot water and steam generation in food processes such as smoking, scalding, drying, pasteurization, sterilization, cleaning, and cooking, which currently rises both economic- ...