Browsing NTNU Open by Author "Bantle, Michael"
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Description of atmoshperic freeze-drying process of organic apples using thermo-physical properties
Tolstorebrov, Ignat; Eikevik, Trygve Magne; Petrova, Inna; Shokina, Yulia; Bantle, Michael (Chapter, 2018)This study discusses the influence of temperature and total moisture content on ice fraction in organic apples during atmospheric freeze-drying process. The ice formation of glass transition events were described by Clausius- ... -
Description of atmospheric freeze-drying of brown seaweeds (Saccherina Latissima) with respect to thermal properties and phase transition
Tolstorebrov, Ignat; Eikevik, Trygve Magne; Petrova, Inna; Bantle, Michael (Chapter, 2018)Thermal properties of brown seaweeds (Saccharina latissima) were determined using DSC technique in the temperature range between -150.0 and 50.0 °C. The following phase transitions were detected: glass transitions, incipient ... -
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 ... -
Documentation of an integrated thermal energy system for a building complex
Rohde, Daniel; Bantle, Michael; Andresen, Trond; Nord, Natasa (Chapter, 2015)In large buildings and building complexes, energy use can be reduced by efficient interaction between heating and cooling demands and thermal storage (short and long term storage). This work describes an integrated energy ... -
Energy Efficient Drying Systems for the Dried Cured Meat Industry
Kvalsvik, Karoline Husevåg (Master thesis, 2015)Production of dry-cured meat requires large amounts of energy. To reduce the running costs in the dry-cured meat industry, which are closely related to the energy needs, eight energy systems for drying of meat were simulated ... -
Energy use in Norwegian non-residential buildings: building regulations, calculations and measurements
Kauko, Hanne; Stavset, Ole; Bantle, Michael; Nord, Natasa (Conference object, 2015) -
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 investigation of the performance of a hydrocarbon heat pump for high temperature industrial heating
Bamigbetan, Opeyemi Olayinka; Eikevik, Trygve Magne; Nekså, Petter; Bantle, Michael; Schlemminger, Christian (Chapter, 2018)A 20 kW heat pump test rig has been built to investigate and validate heat delivery up to 110 °C using a vapour compression cycle. The heat pump is a cascade cycle with propane as the working fluid in the low temperature ... -
High temperature heat pumps in dairy industry utilizing turbo compressor
Rossvoll, Petter Olsen (Master thesis, 2016)Abstract There exist several high temperature processes in UHT plants where a great amount of heat is wasted. To avoid this can energy efficient equipment be installed, such as high temperature heat pumps, which can ... -
High temperature industrial heat pumps utilising natural working fluids
Nekså, Petter; Bantle, Michael; Schlemminger, Christian; Bamigbetan, Opeyemi Olayinka (Chapter, 2019)There is a large demand for heat typically in the temperature range 100-200⁰C in different industries. This is today often covered by fossil fuel burning or direct use of electricity. Heat pumps has to a lesser extent been ... -
Influence of the low temperature drying process on optical alternations of organic apple slices
Bantle, Michael; Kopp, Christian Andre; Claussen, Ingrid Camilla; Tolstorebrov, Ignat (Chapter, 2018)Drying conditions for convective driers are often based on empirical approaches in which the final product quality is evaluated post processing. Modern sensor technology and data processing enable second-by-second quality ... -
Investigation of a hybrid compression absorption heat pump system for high temperatures
Wersland, Maria Byrkjedal (Master thesis, 2017)The industrial sector is a large consumer of high temperature heat. Usually this heat is provided by resources that consume primary energy. At the same time there is a vast amount of low-grade surplus heat available that ... -
Investigation of influence of pre-treatment and low-temperature on drying kinetics, sorption properties, shrinkage and color of brown seaweeds (Saccharina Latissima)
Tolstorebrov, Ignat; Eikevik, Trygve Magne; Petrova, Inna; Shokina, Yulia; Bantle, Michael (Chapter, 2018)Drying kinetics of Saccharina latissima (raw and blanched) at low temperatures (10.0, 25.0 and 38.0 °C) was studied. The effective moisture diffusivity coefficient varied due to temperature alterations in the range between ... -
Kennfeld und Leistungsanalyse einer zweistufigen Turbokompressor-Brüdenverdichtung
Bantle, Michael; Schlemminger, Christian; Ahrens, Marcel Ulrich; Evenmo, Kjetil (Chapter, 2018)Die mechanische Brüdenverdichtung ist eine Spezialform der Wärmepumpentechnologie. Überschüssiger Dampf aus industriellen Prozessen (R718) wird verdichtet und die Kondensationswärme genutzt um den Prozess zu hei-zen. ... -
Low temperature drying and thermo-physical Properties of Brown seaweeds (Saccharina latissima)
Tolstorebrov, Ignat; Eikevik, Trygve Magne; Bantle, Michael (Chapter, 2017)The drying kinetics of brown seaweed Sacharina Latissima with and without blanching were investigated in temperature range between 10.0 and 38.0 °C. The drying process is more rapid for raw seaweeds. The effective moisture ... -
Performance evaluation of two-stage mechanical vapour recompression with turbo-compressors
Bantle, Michael; Schlemminger, Christian; Tolstorebrov, Ignat; Ahrens, Marcel; Evenmo, Kjetil (Chapter, 2018)Mechanical Vapour Recompression (MVR) is an open loop heat pump system using water (R718) as working fluid, one of the most abundant and safest refrigerant on the planet. The concept can significantly reduce the energy ... -
Performance of high temperature heat pump for simultaneous and efficient production of ice water and process heat
Schlemminger, Christian; Svendsen, Eirik Starheim; Foslie, Sverre Stefanussen; Bantle, Michael; Bamigbetan, Opeyemi Olayinka; Nekså, Petter (Chapter, 2019)Industrial processes like milk production often require simultaneous cooling and heating at temperature of 1 °C to 10 °C and 90 °C to 120 °C, respectively. High temperature heat pumps (HTHP) with natural working fluids are ... -
Review of Vapour Compression Heat Pumps for High Temperature Heating using Natural Working Fluids
Bamigbetan, Opeyemi Olayinka; Eikevik, Trygve Magne; Nekså, Petter; Bantle, Michael (Journal article; Peer reviewed, 2017)The use of high temperature heat pumps (HTHPs) operating with natural fluids has been shown to be a potential environmentally friendly solution to increase energy efficiency in industrial processes. Industrial processes ... -
State diagrams in low temperature and atmospheric freeze drying of organic fruid products
Tolstorebrov, Ignat; Bantle, Michael; Eikevik, Trygve Magne; Paykacheva, K. (Chapter, 2017)The influence of environmental parameters on freeze-drying of blanched organic apples was investigated. The changes of material when dried were also studied since the reduction of moisture content during drying decreases ... -
STUDY OF HIGH INTENSITY, AIRBORNE ULTRASOUND IN ATMOSPHERIC FREEZE DRYING
Bantle, Michael (Doktoravhandlinger ved NTNU, 1503-8181; 2011:11, Doctoral thesis, 2011)Atmospheric or convective freeze drying (AFD) is a dehydration process mostly employed in the food industry. It is also a promising process for the freeze drying of high-end products in the biological and pharmaceutical ...