• Airflow Measurements for Air Handling Units 

      Rønneseth, Øystein; Liu, Peng; Alonso, Maria Justo (SINTEF Fag;51, Research report, 2018)
      Executive summary This technical report is intended as a preliminary study on airflow measurements as they are basic for the evaluation of the efficiency of air handling units (AHUs) in ventilation systems. The report ...
    • Development and optimization of highly efficient heat recoveries for low carbon residential buildings 

      Liu, Peng; Justo Alonso, Maria; Mathisen, Hans Martin; Halfvardsson, Anneli (Peer reviewed; Journal article, 2022)
      To achieve energy efficiency and lower carbon emissions, building envelopes have become tighter and more insulated. These buildings must have mechanical ventilation with high efficient heat recovery to provide adequate ...
    • Evaluation of low-cost formaldehyde sensors calibration 

      Justo Alonso, Maria; Madsen, Henrik; Liu, Peng; Jørgensen, Rikke Bramming; Jørgensen, Thomas Berg; Christiansen, Even Johan; Myrvang, Olav Aleksander; Bastien, Diane; Mathisen, Hans Martin (Peer reviewed; Journal article, 2022)
      Low-cost sensors (LCS) are becoming ubiquitous in the market; however, calibration is needed before reliable use. An evaluation of the calibration of eight identical pre-calibrated formaldehyde LCS is presented here. The ...
    • Evaluation of Simplified Space-Heating Hydronic Distribution for Norwegian Passive Houses 

      Georges, Laurent; Alonso, Maria Justo; Woods, Ruth; Wen, Kang; Håheim, Fredrik; Liu, Peng; Berge, Magnar; Thalfeldt, Martin (ZEB Project report;39, Research report, 2017)
      This technical report combines research results from the Norwegian Research Center on Zero Emission Buildings (ZEB) and a competence project about simplified hydronic distribution funded by Husbanken. In the Norwegian ...
    • Fuktgjenvinning i roterende varmegjenvinnere, venn eller fiende av inneklimaet? 

      Liu, Peng; Mathisen, Hans Martin (Journal article, 2022)
      For lite eller for mye fuktinnhold i lufta kan være en utfordring for inneklimaet. Vi har brukt maskinlæringsalgoritmer for å simulere fuktgjenvinning i roterende varmegjenvinnere. Resultatene viser at denne gjenvinningen ...
    • Innovasjonsrapport 2020. Forskningssenteret for nullutslippsområder i smarte byer (FME ZEN) 

      Bergsdal, Håvard; Sørensen, Åse Lekang; Cervenka, Zdena; Holm, Øystein; Thomsen, Judith; Sartori, Igor; Lindberg, Karen Byskov; Stokke, Raymond Andreas; De Boer, Luitzen; Hamdan, Hasan; Holmen, Elsebeth; Wiik, Marianne Rose Kjendseth; Backe, Stian; Kauko, Hanne; Georges, Laurent; Walnum, Harald Taxt; Lien, Synne Krekling; Skaar, Christofer; Wolfgang, Ove; Brattebø, Helge; Lausselet, Carine; Resch, Eirik; Sandberg, Nina Holck; Pinel, Dimitri; Thorvaldsen, Kasper Emil; Alonso, Maria Justo; Askeland, Magnus; Petersen, Sobah Abbas; Favero, Matteo; Carlucci, Salvatore; Liu, Peng (ZEN Report;28, Research report, 2020)
      Forord. Forskning og innovasjon er grunnpilaren i vår visjon om å utvikle bærekraftige områder med null klimagassutslipp. Innovasjonskomiteen skal bistå senterledelsen i dette arbeidet gjennom å etablere gode innovasjonsprosesser ...
    • A review of heat recovery technologies and their frost control for residential building ventilation in cold climate regions 

      Bai, Hongyu; Liu, Peng; Justo Alonso, Maria; Mathisen, Hans Martin (Peer reviewed; Journal article, 2022)
      This study reviewed heat recovery technologies and their application in residential buildings in cold climates. The increasing efforts on reducing building energy use over the recent years have resulted in improved insulated ...
    • Techniques for airflow measurements to determine the real efficiency of heat recovery in ventilation systems 

      Rønneseth, Øystein; Liu, Peng; Alonso, Maria Justo; Mathisen, Hans Martin (Conference object; Journal article; Peer reviewed, 2019)
      Heat recovery in ventilation is essential to reduce energy use and thus mitigate greenhouse gas emissions from the building sector. Heat recovery efficiency of at least 80% in new buildings is required according to Norwegian ...
    • Theoretical Prediction of Longitudinal Heat Conduction Effects on the Efficiency of the Heat Wheel Used for Ventilation in Powerhouse Building “Kjørbo” in Norway 

      Liu, Peng; Mathisen, Hans Martin; Alonso, Maria Justo (Journal article; Peer reviewed, 2017)
      The present study investigates effects of longitudinal heat conduction (LHC) on the heat recovery effectiveness of the heat wheel in the Powerhouse building “Kjørbo”. The effects LHC which are usually ignored in the heat ...
    • The use of machine learning to determine moisture recovery in a heat wheel and its impact on indoor moisture 

      Liu, Peng; Justo Alonso, Maria; Mathisen, Hans Martin; Halfvardsson, Anneli (Peer reviewed; Journal article, 2022)
      Balanced mechanical ventilation equipped with heat recovery has been widely adopted in cold climates to ensure an acceptable indoor environment in energy-efficient buildings. An acknowledged trend to achieve more energy ...
    • Use of Membrane Energy Exchanger in Ventilation: Odour Sensory Measurement 

      Liu, Peng; Mathisen, Hans Martin; Skaten, Mariell; Justo Alonso, Maria (Peer reviewed; Journal article, 2022)
      Membrane energy exchanger (MEE) for a new generation of energy efficient heating, ventilation and air conditioning (HVAC) systems has attracted wide attention. As MEE has been increasingly employed, extensive studies of ...