Browsing SINTEF Open by Author "Köster, Lukas"
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Improving energy efficiency in seafood freezing with brine technology
Svendsen, Eirik Starheim; Indergård, Erlend; Bengsch, Jan; Widell, Kristina Marianne Norne; Köster, Lukas; Nordtvedt, Tom Ståle (Chapter, 2024)Seafood is an important source of the world’s food supply and demand is growing. More and more seafood is being sold frozen, which extends the shelf life and creates more sustainable transportation options. Depending on ... -
Increasing the energy efficiency of a dairy by implementing a high temperature heat pump – a theoretical evaluation.
Köster, Lukas; Bengsch, Jan; Svendsen, Eirik Starheim; Widell, Kristina Marianne Norne; Jenssen, Sigmund (Chapter, 2024)Pasteurisation is an energy-intensive process inside dairies, requiring high temperatures, often achieved using oil, gas or electric steam boilers. Using high temperature heat pumps (HTHP) can instead improve energy ... -
Industrial cold storage of fruit and berries - specific energy use and operational processes
Indergård, Erlend; Svendsen, Eirik Starheim; Köster, Lukas (Peer reviewed, 2024)Fruits and berries require due to their perishable nature specific storage conditions. During harvest season, products are stored in large quantities within the storage, resulting in high peak power requirements of the ... -
Modelling of an onboard R290 refrigerated sea water (RSW) system for ice production on small fishing vessels in India
Köster, Lukas; Singha, Prosenjit; Das, Chayan; Bengsch, Jan; Hafner, Armin; Dasgupta, Mani Sankar; Kochunni, Sarun Kumar; Widell, Kristina Marianne Norne (Peer reviewed, 2024)India is one of the world's leading fish exporting nations. The fishing sector is expected to grow and already has a large economic and social impact. It is currently dominated by small fishing boats, which use ice to cool ... -
Performance analysis of an active on-board refrigeration system using propane for improved fish preservation in small fishing boats
Singha, Prosenjit; Das, Chayan; Köster, Lukas; Kochunni, Sarun Kumar; Dasgupta, Mani Sankar; Widell, Kristina Marianne Norne; Bhattacharrya, Souvik; Hafner, Armin (Peer reviewed, 2024)With a seafood production of 16.25 million metric tonnes in fiscal year 2022-23, India secures third rank globally in seafood production. To ensure the nation's food security and improve export earnings, it is critical to ... -
Performance testing of CO2-NH3 cascade freezer for seafood processing
Kumar, Sumit; Arun, B.S.; S, Murali; Ninan, George; Ramgopal, Maddali; Samuel, Manoj; Köster, Lukas; Bengsch, Jan; Widell, Kristina Marianne Norne; Hafner, Armin; George, Saju; Hashmin, Kolliyil Ashraf (Peer reviewed, 2024)Most of India’s seafood sector relies on ammonia refrigerant for fish processing. However, due to safety concerns these natural refrigerants are being replaced by synthetic refrigerants in some regions. Carbon dioxide is ... -
Sizing and optimization of a cold thermal energy storage (CTES) for a dairy: A case study
Bengsch, Jan; Köster, Lukas; Svendsen, Eirik Starheim; Selvnes, Håkon; Widell, Kristina Marianne Norne (Peer reviewed, 2024)In the food industry, particularly in the dairy industry, significant amounts of thermal energy are required on different temperature levels. The thermal demand is linked to the production schedule and varies during the ... -
Testing of tri-partite CO2 gas cooler prototype for domestic hot water and space heating
Tolstorebrov, Ignat; Zendehboudi, Alireza; Banasiak, Krzysztof; Köster, Lukas; Álvarez Pardiñas, Ángel; Hafner, Armin (Science et technique du froid;, Chapter, 2020)The aim of this study was to test a tri-partite gas cooler for CO2 heat pumps (5-13 kW). The proposed heat exchanger allowed the simultaneous and separate production of space heating and domestic hot water with an integrated ...