Now showing items 2111-2130 of 4197

    • 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 (Chapter, 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 ...
    • Integrated CO2 solutions for supermarkets 

      Hafner, Armin; Nekså, Petter (Journal article; Peer reviewed, 2018)
      Supermarkets represent a refrigeration application area which is spearheading towards the total phase in of natural working fluids. Exposed to demanding customers where reputation is an important part of the business, focus ...
    • Integrated CO2 system with HVAC and hot water for hotels: Field measurements and performance evaluation 

      Smitt, Silje Marie; Hafner, Armin; Tolstorebrov, Ignat (Journal article; Peer reviewed, 2020)
      This study investigates the performance of an integrated CO2 (R744) heat pump and chiller unit in a Norwegian hotel. The system consists of a single unit for heating, cooling and hot water with an integrated thermal storage. ...
    • Integrated Economic and Physical Information for Environmental Footprint Modelling 

      Steen-Olsen, Kjartan (Doctoral thesis at NTNU;2015:58, Doctoral thesis, 2015)
      Whether inspired by motives of fair attribution of environmental responsibilities or the search for the most effective scheme for market driven emission abatements, reliable analyses of the environmental consequences of ...
    • Integrated energy concepts for high performance hotel buildings 

      Smitt, Silje Marie; Hafner, Armin (Journal article, 2018)
      Integrated energy concepts with heat recovery are not widely applied for hotels, i.e. there is a huge potential to further reduce the specific primary energy demand in this kind of buildings. The development and implementation ...
    • Integrated Energy concepts for high performance hotel buildings 

      Smitt, Silje Marie (Master thesis, 2017)
      On a national level, buildings are responsible for roughly 40% of the primary energy consumption, where domestic hot water and space heating are major contributors. By introducing an energy system that employs natural ...
    • Integrated energy concepts with CO2 systems for hotel buildings in warm climates 

      Keshari, Dipak (Master thesis, 2021)
      Buildings and construction sectors together account for around 36\% of final energy use and 39\% of energy-related carbon dioxide emissions annually according to global status report, with space heating, space cooling and ...
    • Integrated energy system for Granåsen Snow Arena, Hotel and Supermarket 

      Birkeland, Jostein (Master thesis, 2018)
      Granåsen in Trondheim is the chosen location for Norway s application to host the 2023 FIS Nordic Ski World Championships. One of the investments to develop the area around Granåsen is a new building accommodating a REMA1000 ...
    • Integrated heating and cooling CO2 heat pump system in a modern distribution centre 

      Kvalsvik, Karoline Husevåg; Hafner, Armin (Chapter, 2018)
      Industry is responsible for about 25-30 % of the global primary energy demand (Elmegaard, Zühlsdorf et al. 2017), and around two thirds of this is used for heating and cooling (Elmegaard, Zühlsdorf et al. 2017). Several ...
    • Integrated high temperature heat pumps and thermal storage tanks for combined heating and cooling in the industry 

      Ahrens, Marcel Ulrich; Foslie, Sverre Stefanussen; Moen, Ole Marius; Bantle, Michael; Eikevik, Trygve Magne (Peer reviewed; Journal article, 2021)
      This study investigates the integrated heat pump system of a green-field dairy located in Bergen, Norway. The purpose of the study is to determine the energy consumption and system performance. The dairy features a novel ...
    • Integrated life-cycle assessment of electricity-supply scenarios confirms global environmental benefit of low-carbon technologies 

      Hertwich, Edgar G.; Gibon, Thomas; Bouman, Evert; Arvesen, Anders; Suh, Sangwon; Heath, Garvin; Bergesen, Joseph; Ramirez, Andrea; Vega, Mabel; Shi, Lei (Journal article; Peer reviewed, 2015)
      Decarbonization of electricity generation can support climate-change mitigation and presents an opportunity to address pollution resulting from fossil-fuel combustion. Generally, renewable technologies require higher initial ...
    • Integrated multiscale simulation of CHP based district heating system 

      Li, Peifeng; Nord, Natasa; Ertesvåg, Ivar Ståle; Ge, Zhihua; Yang, Zhiping; Yang, Yongping (Journal article; Peer reviewed, 2015)
      Many studies have been carried out separately on combined heat and power and district heating. However, little work has been done considering the heat source, the district heating network and the heat users simultaneously, ...
    • Integrated R744 ejector supportet parallel compression racks for supermarkets : experimental results 

      Pardiñas, Ángel Á.; Hafner, Armin; Banasiak, Krzysztof (Chapter, 2018)
      R744 is currently the preferred solution in the commercial refrigeration sector for most regions, but the limited efficiency of such systems under high temperatures constrains its expansion. Technologies such as parallel ...
    • Integrated R744 unit for hotels: Analysis of field data 

      Smitt, Silje Marie; Tolstorebrov, Ignat; Hafner, Armin (Chapter, 2020)
      This study investigates the performance of an integrated R744 HVAC and domestic hot water unit for a Norwegian hotel. The thermal system of the hotel is described and data from the first year of operation are analyzed. The ...
    • Integrated solutions for thewater-energy-land nexus: Are global models rising to the challenge? 

      Johnson, Nils; Burek, Peter; Byers, Edward; Falchetta, Giacomo; Flörke, Martina; Fujimori, Shinichiro; Havlik, Petr; Hejazi, Mohamad; Hunt, Julian; Krey, Volker; Langan, Simon; Nakicenovic, Nebojsa; Palazzo, Amanda; Popp, Alexander; Riahi, Keywan; van Dijk, Michiel; van Vliet, Michelle T.H.; van Vuuren, Detlef P.; Wada, Yoshihide; Wiberg, David; Willaarts, Barbara; Zimm, Caroline; Parkinson, Simon (Journal article; Peer reviewed, 2019)
      Increasing human demands for water, energy, food and materials, are expected to accentuate resource supply challenges over the coming decades. Experience suggests that long-term strategies for a single sector could yield ...
    • Integrated Techno-economic and Environmental Assessment of an Amine-based Capture 

      Roussanaly, Simon; Brunsvold, Amy; Hognes, Erik Skontorp; Jakobsen, Jana Poplsteinova; Zhang, Xiangping (Journal article; Peer reviewed, 2013)
      A systematic methodology for integrated techno-economic and environmental assessment of CCS value chains is presented and applied to assess the impact of the CO2 concentration on an amine-based post-combustion CO2 capture ...
    • Integrated thermal storage and heat recovery of the CO2 refrigeration system for fishing vessels 

      Saeed, Muhammad Zahid; Widell, Kristina Norne; Hafner, Armin; Nordtvedt, Tom Ståle; Svendsen, Eirik Starheim (Chapter, 2020)
      The natural refrigerant CO2 is gaining an attraction for fishing vessels due to its compact units, negligible global warming potential (GWP), and non-toxic behaviour. Chilling and freezing onboard are energy-consuming ...
    • Integrated thermal system for hydrogen and ammonia driven cruise ship 

      Egerdahl, Magnus (Master thesis, 2022)
      Cruiseskipindustrien står overfor utslippsreguleringer på grunn av klimaendringer og global oppvarming. Tradisjonelt fossilt drivstoff som brukes til fremdrift og energibehov ombord på cruiseskip resulterer i et høyt ...
    • Integrating ex-ante and prospective life-cycle assessment for advancing the environmental impact analysis of emerging bio-based technologies 

      Rinke Dias de Souza, Nariê; Matt, Livia; Sedrik, Rauno; Vares, Lauri; Cherubini, Francesco (Peer reviewed; Journal article, 2023)
      Unlike the fossil-based alternatives, many emerging bio-based technologies are still at the early lab or pilot scale and are not representative of optimized industrial conditions. This makes a robust comparison of their ...
    • Integrating impacts on climate change and biodiversity from forest harvest in Norway 

      Iordan, Cristina Maria; Verones, Francesca; Cherubini, Francesco (Journal article, 2018)
      Forest ecosystems provide a variety of services, from climate regulation to biodiversity conservation. Temporary land cover variations such as those related to forest management can contribute to climate change through ...