Blar i SINTEF Open på forfatter "Selvnes, Håkon"
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Advanced R744 solution for supermarkets, hotel chillers and maritime applications in India
Singh, Simarpreet; Selvnes, Håkon; Pardiñas, Ángel Á.; Reddy, Srinevas K; Gupta, P; Vaishak, S; Arun, B.S.; Widell, Kristina Norne; Elarga, Hagar; Hafner, Armin (Science et technique du froid;, Chapter; Peer reviewed, 2022)R744 integrated systems can meet oscillating heating and cooling demands efficiently and become a game changer in countries such as India. The present work aims to develop and present R744 system designs and disseminate ... -
A CFD analysis for the performance assessment of a novel design of plates-in-tank latent storage unit for freezing applications
Selvnes, Håkon; Allouche, Yosr; Sevault, Alexis; Hafner, Armin (Science et technique du froid;2019-1, Chapter; Peer reviewed, 2019) -
Cold thermal energy storage for air conditioning in a supermarket CO2 booster refrigeration system
Selvnes, Håkon; Alvarez Pardinas, Angel; Hafner, Armin (Science et technique du froid;, Chapter; Peer reviewed, 2023)Integrated supermarket refrigeration systems are based on transcritical CO2 booster systems, supplying cooling and freezing of the products in the store and air conditioning (AC) of the shop area by cooling a glycol circuit ... -
Cold thermal energy storage for industrial CO refrigeration systems using phase change material: An experimental study
Selvnes, Håkon; Allouche, Yosr; Hafner, Armin; Schlemminger, Christian; Tolstorebrov, Ignat (Peer reviewed; Journal article, 2022)Refrigeration systems in industrial food processing plants are large users of electric energy and often show high peak power consumption. Cold thermal energy storage (CTES) technology integrated into refrigeration systems ... -
Cold thermal energy storage in solid-liquid transition of carbon dioxide: Investigating the possibility
Mastani Joybari, Mahmood; Selvnes, Håkon; Sevault, Alexis; Hafner, Armin (Science et technique du froid;, Chapter; Peer reviewed, 2022)Industrial freezing is an energy-intensive process which is growing due to the increasing demand. This is exerting stress on electrical grids, especially at peak hours. To tackle this issue, thermal energy storage has ... -
Cold thermal storage integration in a large industrial refrigeration system
Selvnes, Håkon; Hafner, Armin; Kauko, Hanne (Science et technique du froid;2018-3, Chapter; Peer reviewed, 2018) -
Cold thermal storage integration in a large industrial refrigeration system
Selvnes, Håkon; Hafner, Armin; Kauko, Hanne (Science et technique du froid;2018-3, Chapter; Peer reviewed, 2018) -
Design of a cold thermal energy storage unit for industrial applications using CO2 as refrigerant
Selvnes, Håkon; Hafner, Armin; Kauko, Hanne (Actes du ... Congres international du froid;2019, Chapter; Peer reviewed, 2019) -
Ejector for the world: simplified ejector-supported CO2 refrigeration systems for all climates
Pardiñas, Ángel Á.; Fabris, F; Contiero, Luca; Selvnes, Håkon; Banasiak, Krzysztof; Hafner, Armin (Science et technique du froid;, Chapter; Peer reviewed, 2022)The novel configuration presented in this work simplifies the layout of ejector-supported booster systems while maintaining all the benefits of an ejector implementation. The basic version of the solution is based on: i) ... -
Energy flow analysis of an industrial ammonia refrigeration system and potential for a cold thermal energy storage
Widell, Kristina Norne; Svendsen, Eirik Starheim; Selvnes, Håkon; Sevault, Alexis; Hafner, Armin; Nordtvedt, Tom Ståle (Science et technique du froid;, Chapter; Peer reviewed, 2022)There is an increasing effort to reduce energy demand at food processing plants, mainly to reduce the total carbon footprint. The energy demand of a fish processing plant (using ammonia as refrigerant) has been evaluated ... -
Innovative refrigeration concept for passenger ships - combining CO2 refrigerant, cold recovery and cold storage
Pardiñas, Ángel Á.; Selvnes, Håkon; Gabrielii, Cecilia H; Saeed, Muhammad Zahid (Science et technique du froid;, Chapter; Peer reviewed, 2022)More stringent international regulations on ship's emissions require a shift towards more climate friendly fuels, such as liquefied natural gas (LNG). On LNG-driven ships, the fuel is stored onboard at cryogenic temperature. ... -
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 (Science et technique du froid;, Chapter; Peer reviewed, 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 ... -
Investigation on heat recovery strategies from low temperature food processing plants: Energy analysis and system comparison
Ahrens, Marcel Ulrich; Selvnes, Håkon; Henke, Leon Hendrik; Bantle, Michael; Hafner, Armin (Chapter; Peer reviewed, 2021)Industrial food processing plants often have significant thermal requirements at both low and high temperatures. These plants can produce a variety of products including frozen, chilled and grilled/steamed foodstuff, ... -
Modeling of a CO2‐Based Integrated Refrigeration System for Supermarkets
Pardiñas, Ángel Á.; Jokiel, Michael; Schlemminger, Christian; Selvnes, Håkon; Hafner, Armin (Peer reviewed; Journal article, 2021)An integrated energy system that consists of a centralized refrigeration unit can deliver the entire HVAC&R (heating, ventilation, air conditioning, and refrigeration) demand for a supermarket. CO2 (R744) is a natural ... -
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 ... -
Potentials and challenges for pillow-plate heat exchangers: State-of-the-art review
Joybari, Mahmood Mastani; Selvnes, Håkon; Sevault, Alexis; Hafner, Armin (Peer reviewed; Journal article, 2022)For a long time, shell-and-tube heat exchangers have been the most common choice in the industry. Despite some limitations, their main advantage is that they have been extensively investigated and reliable design tools are ... -
Validation of a Modelica numerical model for pillow plate heat exchangers using phase change material
Försterling, Sven; Selvnes, Håkon; Sevault, Alexis (Science et technique du froid;, Chapter; Peer reviewed, 2022)Refrigeration systems are often installed in industrial facilities where the difference between the peak and average thermal loads can be considerable due to the throughput of products and changes in the ambient conditions ...