Browsing NTNU Open by Author "Jokiel, Michael"

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    • Cold storage using phase change material in refrigerated display cabinets: experimental investigation 

      Jokiel, Michael; Sevault, Alexis; Banasiak, Krzysztof; Næss, Erling (Chapter, 2021)
      Refrigerated display cabinets are the main energy consumers in supermarkets. Cold thermal energy storage (CTES) using phase change materials (PCM) can significantly reduce temperature variations in a display cabinet during ...

    • Design of a CO2 heat pump drier with dynamic modelling tools 

      Jokiel, Michael; Bantle, Michael; Kopp, Christian Andre; Claussen, Ingrid Camilla; Tolstorebrov, Ignat (Chapter, 2019)
      Drying is an energy and time intensive process which thermal energy demand is mostly provided by fossil resources. Especially in the food processing industry it is important to increase the energy efficiency of drying ...

    • 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 ...

    • Phase change material thermal energy storage for a large scale ammonia chiller/heat pump system 

      Jokiel, Michael; Kauko, Hanne; Schlemminger, Christian; Hafner, Armin; Claussen, Ingrid Camilla (Chapter, 2017)
      Thermal energy storage (TES) can be applied to reduce peak heating and cooling loads in buildings and to improve the performance and reliability of the heat supply system. For short-term TES, phase change materials (PCM) ...