Blar i NTNU Open på forfatter "Schlemminger, Christian"
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Adsorptive Hydrogen Storage: Experimental investigations on thermal conductivity in porous media
Henriksen, Jan Georg (Master thesis, 2013)The objective of this work was to install and verify the Hot Disk TPS measurement setup for thermal conductivity measurements, and to carry out experiments on various porous materials. A literature survey on gas/solid ... -
Cryogenic hydrogen adsorption storage: An investigation of thermo-physical properties and storage tank performance
Schlemminger, Christian (Doctoral thesis at NTNU;2016:85, Doctoral thesis, 2016) -
Development of a thermal conductivity apparatus: Analysis and design
Eithun, Camilla Foyn (Master thesis, 2012)This objective of this thesis has been to development and analysis a measurement apparatus designed to determine thermal conductivity of porous materials. A literature survey concerning available experimental techniques ... -
Empirical validation and local sensitivity analysis of a lumped-parameter thermal model of an outdoor test cell
Cattarin, Giulio; Pagliano, Lorenzo; Causone, Francesco; Kindinis, Andrea; Goia, Francesco; Carlucci, Salvatore; Schlemminger, Christian (Journal article, 2018)This paper presents the experimental validation of a thermal model describing the ZEB Test Cells Laboratory, located at the Gløshaugen campus of NTNU and SINTEF in Trondheim, Norway. Besides, a local sensitivity analysis ... -
Energieffektiv hydrogenlagring: eksergianalyse av adsorpsjon
Berntsen, Trond Einar Egeberg (Master thesis, 2012)Hydrogenlagring er en nøkkelteknologi for etablering av en hydrogenøkonomi. Adsorpsjon er en av hydrogenlagringsteknologiene som for tiden utforskes sammen med hydrogen lagret som komprimert gass, væske, og i metallhydrider. ... -
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 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 ... -
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. ... -
Numerical study of hydrogen adsorption
Rasmussen, Inger-Anne (Master thesis, 2012)The main objective of this thesis is to describe the transient thermodynamics during physisorption of hydrogen gas using a commercial numerical software.Simulations of thermal effects during adsorption are valuable tools ... -
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 ... -
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) ... -
The development of a hydrocarbon high temperature heat pump for waste heat recovery
Bamigbetan, Opeyemi Olayinka; Eikevik, Trygve Magne; Nekså, Petter; Bantle, Michael; Schlemminger, Christian (Journal article; Peer reviewed, 2019)Waste heat is an abundant resource that if recovered with a heat pump would increase energy efficiency in industrial processes. This will provide improvements in heat utilization and reduce the environmental impact of ... -
The ZEB Test Cell Laboratory. A facility for characterization of building envelope systems under real outdoor conditions
Goia, Francesco; Schlemminger, Christian; Gustavsen, Arild (Journal article; Peer reviewed, 2017)The ZEB Test Cells Laboratory is an experimental facility at the Norwegian University of Science and Technology, designed to carry out different types of experiments. The primary use is for testing of building envelope ... -
Theoretical analysis for charge reduction in a 200 kW hydrocarbon hight temperature heat pump
Bamigbetan, Opeyemi Olayinka; Eikevik, Trygve Magne; Nekså, Petter; Bantle, Michael; Schlemminger, Christian (Chapter, 2018)Hydrocarbons with thermodynamic properties similar to synthetic fluids are alternative working fluid for high temperature heat pumps without the negative environmental impact of greenhouse gases. Though hydrocarbons have ... -
Thermo-physical properties of anisotropic materials - A comparison between experiments and numerical calculations
Ringseth, Ane (Master thesis, 2014)Hydrogen has the potential to become a replacement for fossil energy carriers in the future. Thermophysical properties like thermal conductivity and specific heat will be very important when determining the internal heat ... -
Turbo-compressors for R-718: Experimental evaluation of a two-stage steam compression cycle
Bantle, Michael; Schlemminger, Christian; Gabrielii, Cecilia H; Ahrens, Marcel Ulrich (Chapter, 2019)Water (R-718) is a safe and energy-efficient refrigerant. Mechanical vapour recompression (MVR), an open-loop heat pump using R718, can significantly reduce the energy consumption for steam-heated processes like drying, ...