Blar i NTNU Open på forfatter "Eikevik, Trygve Magne"
-
Simulations and experiments on a Solar-Assisted Heat Pump Water Heater - a comparison between R22 and R290 as working fluid
Kjellsen, Per (Master thesis, 2016)Solar Assisted Heat Pumps (SAHP) use solar irradiation to boost the evaporation temperature. The experimental setup used in this thesis was located in Shanghai in China and heats water for domestic purposes. The experimental ... -
Smart and Cost efficient Energy Interactions in Building Complexes - Smarte og kostnadseffektive energiinteraksjoner i bygningskomplekser
Schumacher, Stefan Peter Erhard (Master thesis, 2015)Efforts of the extension of new energy sources from renewable energies are motivated by the strategy of Energi21, which was published in 2014 by the Norwegian Ministry of Petroleum and Energy. The intention of this study ... -
Snow Production Equipment at Ambient Temperatures Above Zero Degrees Celsius
Dieseth, Jon-Brede Rykkje (Master thesis, 2016)In the perspective of increasing global temperatures, the periods with natural snow is shorter and in areas, the snow in the winter is disappearing. Therefore, it is important to produce snow at temperatures above 0°C to ... -
Solar driven Power production using CO2 as working fluid
Zhao, Geping (Master thesis, 2015)This thesis work, titled as Experimental and computational research on the feasibility of solar driven power production in Rankine cycle using CO_2 as working fluid , involves the study of Rankine cycle in power production ... -
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 convective heat transfer and chilling kinetics of Atlantic salmon in refrigerated sea water: experiments and modelling
Tolstorebrov, Ignat; Eikevik, Trygve Magne; Widell, Kristina Norne; Nordtvedt, Tom Ståle (Chapter, 2019)The study is devoted to the investigation of heat transfer phenomena of Atlantic salmon in refrigerated sea water with the aim to clarify strategies of large scale industrial chilling of big-size fishes. Experiments were ... -
Study on the performance of central solar heating plants with seasonal storage using underground soil in North China and Norway
Andresen, Hanne Thorshaug (Master thesis, 2014)This thesis involves the work on a combined system consisting of a solar collector, a geothermal heat pump and borehole ground storage. To fully utilize solar energy this study is based on a heating system deigned to store ... -
Sustainable energy in cities: methodology and results of a summer course providing smart solutions for a new district in Shanghai
Wang, Yu; Lobaccaro, Gabriele; Carlucci, Salvatore; Wang, Ruzhu; Li, Yong; Finocchiaro, Luca; Dai, Yanjun; Eikevik, Trygve Magne; Wyckmans, Annemie (Journal article; Peer reviewed, 2017)A systemic approach for integrated urban energy planning and design can increase energy efficiency, the use of renewable energy sources and bioclimatic strategies to lower the energy footprint at building, district and ... -
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 influence of long-term storage, temperature and type of packaging materials on the quality characteristics of frozen farmed Atlantic Salmon (Salmo Salar)
Indergård, Erlend; Tolstorebrov, Ignat; Larsen, Hanne; Eikevik, Trygve Magne (Journal article; Peer reviewed, 2014)The variations of biochemical, structural, sensory and microbiological characteristics of salmon were examined during the long-term frozen storage at –25 °C, –45 °C and –60 °C. The effects of four different types of packaging ... -
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 ... -
Thermodynamic Modeling of a Novel Multi-vane Compressor for Industrial Heat Pumps
Zehtab Jahedi, Pooya (Master thesis, 2022)Abstract will be available on 2025-05-21 -
Ultra-Low-Temperature Refrigeration Systems: A Review and Performance Comparison of Refrigerants and Configurations
Saeed, Muhammad Zahid; Contiero, Luca; Blust, Stefanie; Allouche, Yosr; Hafner, Armin; Eikevik, Trygve Magne (Peer reviewed; Journal article, 2023)During the last decade, many industrial and medical applications have shown a requirement for low-temperature-cooling usage (from −40 to −80 °C), which cannot be efficiently obtained via the conventional refrigeration ... -
Use of ejectors to increase the energy efficiency of heat pump and refrigeration systems
Xiong, Jie (Master thesis, 2015)Ejektoren er i økende grad benyttet for ekspansjonsarbeidet utvinning av lawerdige varmen som å produsere ekstra kjøleeffekt . I denne rapporten er et kjøpesenter kapasitet R744 Enfaset ejektor syklus studert. Denne syklusen ... -
Utilization of surplus heat from snow producing machines
Vagle, Bernhard Haver (Master thesis, 2016)In this master thesis, four cases of snow supply have been evaluated under the condition that a 5 km track of ski conditions can be guaranteed from November to the end of April at a nordic ski arena in Granåsen, outside ... -
Utilizing waste heat from metal industry for drying of organic waste
Dobric, Sasa (Master thesis, 2014)Growing generation of organic waste is a real problem all over the world. This is specifically expressed in the developed countries because the amounts of the waste are larger. Therefore, it implies problem connected with ... -
Utnyttelse av eksergi i LNG for kuldeformål
Pettersen, Erlend (Master thesis, 2008)Hensikten med rapporten er å studere ulike anvendelser av eksergien i flytende naturgass rettet mot fiskerinæringen. Norge har gjennom internasjonale avtaler som Kyoto- og Gøteborgprotokollen forpliktet seg til å begrense ... -
Utvikling av CO2 RSW-anlegg ombord på fiskebåt
Gilberg, Astrid Falch (Master thesis, 2011)Målet med denne masteroppgaven er å undersøke dynamisk drift av RSW-anlegg med CO2 for å optimalisere kapasitet og redusere energibruk. Ulike faktorer som spiller inn på den dynamiske driften for et RSW-anlegg, ble først ... -
Utvikling av effekt- og energieffektive tørkesystemer for klippfisknæringen ved bruk av varmepumper
Gade, Henrik (Master thesis, 2009)Litteraturstudien viste at tørkehastigheter i klippfiskproduksjon påvirkes av forholdene i tørkeluften; relativ fuktighet, temperatur og lufthastighet. Det er to typer tørker som er utbredt, nemlig langsblåste tørker med ... -
Utvikling av energisystemer i svømmehaller
Edsbergløkken, Marie (Master thesis, 2015)Svømmehaller har et høyt energiforbruk på grunn av varme svømmebasseng, stort forbruk av varmt forbruksvann til dusjing, høy lufttemperatur og luftfuktighet i svømmehallen. Dette gir mulighet for energigjenvinning. Høy ...