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Kristina Norne Widell

Research Scientist

Kristina Norne Widell

Research Scientist

Kristina Norne Widell
Phone: 918 93 026
Department: Processing Technology
Office: Trondheim

Publications and responsibilities

Publications

Publication

Energy consumption for salmon slaughtering processes

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1509653

Today’s slaughtering and processing method for Atlantic salmon (Salmo salar) using large refrigerated seawater (RSW) and buffer tanks before and during a stepwise processing regime has now reached its limits. To overcome this problem, the salmon industry must, like the poultry industry, move towards...

Authors Ates Mehmet Baris Widell Kristina Norne Nordtvedt Tom Ståle Cojocaru Andreea-Laura
Year 2017
Type Part of a book/report
Publication

Simulation of a fish freezing tunnel using Modelica

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1288894

The problem of energy consumption during freezing of pelagic fish in an air blast freezing tunnel was investigated. Measurements from a freezing plant were compared with the results from a simulation model, and the results of the comparison show that the required freezing time can be reasonably well...

Year 2015
Type Part of a book/report
Publication

Simulation of air velocity distribution in a freezing tunnel

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1238804

Batch freezing tunnels are essential in the cold chain for the Norwegian pelagic industry. The temperature of the fish core should be at least -18 °C before the tunnel is unloaded. In order to keep an adequate working schedule, unloading should be done within 24 hours. The construction of the tunnel...

Year 2015
Type Part of a book/report
Publication

Handling, processing and freezing of pelagic fish in Norway

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1238799

Pelagic fish is one of the most valuable food products due to its high content of marine fat and proteins. The Norwegian pelagic fish industry processes almost 900 000 tonnes of herring and mackerel annually. The main volume is packed in carton boxes and frozen on shelves in batch freezing tunnels. ...

Year 2015
Type Part of a book/report
Publication

Discretized model of a fish freezing tunnel in Modelica

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1238798

Freezing processes are highly energy demanding and increased efficiency are both economically and environmentally beneficial. However, industrial freezing plants are often not optimized regarding energy efficiency. Operating conditions, such as the heat flow from the products, change during the proc...

Year 2015
Type Part of a book/report
Publication

Blast freezers (Part 2) R717 versus R744

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1238795

A model of the two-stage carbon dioxide (R744) refrigeration system was designed to be able to simulate the freezing process of pelagic fish. The modelling language Modelica was applied and implemented in the simulation environment Dymola Control. Various simulations were performed for a typical des...

Year 2015
Type Part of a book/report
Publication

Blast freezers (Part 1) R717 versus R717 / R744 cascade

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1238794

An ammonia / carbon dioxide (R717/R744) cascade model was designed to be able to simulate the freezing process of pelagic fish. The modelling language Modelica was applied and it was implemented in the simulation environment Dymola Control. Various simulations were performed for a typical design of ...

Year 2015
Type Part of a book/report
View all publications at Cristin