Browsing NTNU Open by Author "Verpe, Espen Halvorsen"
Now showing items 1-4 of 4
-
Cold thermal energy storage with low-temperature plate freezing of fish on offshore vessels
Verpe, Espen Halvorsen; Tolstorebrov, Ignat; Sevault, Alexis; Hafner, Armin; Ladam, Yves (Chapter, 2019)This paper presents the results of a numerical and experimental study of freezing time for fish in plate freezers, and the potential for improvement by altering fish block thickness and lowering evaporation temperature. ... -
Evaluating plate freezing of fish using natural refrigerants and comparison with numerical freezing model
Verpe, Espen Halvorsen; Bantle, Michael; Tolstorebrov, Ignat (Chapter, 2018)This paper compares experimentally measured freezing time and predicted numerical freezing time in industrial CO2 plate freezer. The model uses a two-dimensional, heat capacity-temperature, finite difference method with ... -
Experimental evaluation of a water based high temperature heat pump with novel high pressure lift turbo compressors
Verpe, Espen Halvorsen; Schlemminger, Christian; Bantle, Michael; Ahrens, Marcel Ulrich (Chapter, 2020)This paper evaluates a water based (R718) high temperature heat pump with novel high-pressure lift turbo compressors. The first stage turbo compressor is designed for steam compression and the second stage is designed for ... -
Low Temperature Plate Freezing of Fish on boats using R744 as Refrigerant and Cold Thermal Energy Storage
Verpe, Espen Halvorsen (Master thesis, 2018)The introduction of low temperature R744 freezing systems enables lower evaporating temperatures and faster freezing times, however, also a lower system efficiency (COP). This thesis will investigate how low temperature ...