Browsing SINTEF Community by Author "Mathisen, Hans Martin"
Now showing items 1-20 of 23
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Analysis of reduction of energy demands for Zero Emission Renovated Office Building by using thermal mass and ventilative cooling
Alonso, Maria Justo; Mathisen, Hans Martin (Journal article; Peer reviewed, 2017)Zero emission buildings (ZEB) are characterized by high levels of insulation and air tightness. Powerhouse Kjørbo is the first Zero Emission Renovated Office Building in Norway. In 2013-2014 the building from 1985 underwent ... -
Assessing the indoor air quality and their predictor variable in 21 home offices during the Covid-19 pandemic in Norway
Justo Alonso, Maria; Moazami, Therese Nitter; Liu, Peng; Jørgensen, Rikke Bramming; Mathisen, Hans Martin (Peer reviewed; Journal article, 2022)In this study, concentrations of pollutants: formaldehyde, carbon dioxide (CO2), and total volatile organic compounds (TVOC) and parameters: indoor room temperature and relative humidity (RH) were measured in 21 home offices ... -
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 frost prevention strategies for membrane energy exchangers
Bai, Hongyu; Liu, Peng; Mathisen, Hans Martin (Peer reviewed; Journal article, 2023)In cold climates, the application of heat recovery is restricted by the issue of frost, which causes potential damage to heat exchangers and degrades their effectiveness. Membrane energy exchangers (MEEs), which enable ... -
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 ... -
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 ... -
Global sensitivity analysis and optimal design of heat recovery ventilation for zero emission buildings
Liu, Peng; Justo Alonso, Maria; Mathisen, Hans Martin (Peer reviewed; Journal article, 2023)Energy-efficient building services are necessary to realise zero-emission buildings while maintaining adequate indoor environmental quality. As the share of ventilation heating needs grow in well-insulated and airtight ... -
Heat recovery ventilation design limitations due to LHC for different ventilation strategies in ZEB
Liu, Peng; Justo Alonso, Maria; Mathisen, Hans Martin (Peer reviewed; Journal article, 2022)Today's buildings are becoming more insulated and airtight to reduce transmission heat losses. Energy use for ventilation can represent up to half of these buildings' total energy use. Heat recovery in ventilation and ... -
Holistic methodology to reduce energy use and improve indoor air quality for demand-controlled ventilation
Justo Alonso, Maria; Liu, Peng; Marman, Stine Flage; Jørgensen, Rikke Bramming; Mathisen, Hans Martin (Peer reviewed; Journal article, 2022)Ventilation control logics are usually based on the control indicators of occupancy. However, strategies including control of contaminants not linked to occupancy are requested and more feasible with the introduction in ... -
Kunnskapsstatus – Fuktbufring i materialer og påvirkning på energibehov
Asphaug, Silje Kathrin; Time, Berit; Thue, Jan Vincent; Geving, Stig; Gustavsen, Arild; Mathisen, Hans Martin; Uvsløkk, Sivert (ZEB Project report;22, Research report, 2015)Det blir hevdet at det kan være et stort potensial for energisparing i bygninger ved å utnytte sorpsjonsvarme i innvendig eksponerte treoverflater. Fuktbufring er en velkjent effekt og dokumentert i en rekke studier langt ... -
LECO. Energibruk i fem kontorbygg i Norge. Befaring og rapportering
Grini, Catherine; Mathisen, Hans Martin; Sartori, Igor; Haase, Matthias; Sørensen, Helle Wøhlk Jæger; Petersen, Arnkell; Bryn, Ida; Wigenstad, Tore (Prosjektrapport (SINTEF Byggforsk);48, Research report, 2009)Netto energibehov i bygninger fordeles mellom seks poster iht. NS 3031:2007 Beregning av bygningers energiytelse – Metode og data. Disse postene er: • Oppvarming • Varmtvann • Vifter og pumper • Belysning • Teknisk ... -
A multi-objective optimisation framework to design membrane-based energy recovery ventilation for low carbon buildings
Liu, Peng; Mathisen, Hans Martin; Justo Alonso, Maria; Halfvardsson, Anneli (Peer reviewed; Journal article, 2023)Membrane energy exchangers (MEEs) are increasingly being studied and utilized to contribute to realising energy-efficient building services and providing satisfactory indoor environments. The performance of MEEs has been ... -
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 ... -
Review of HVAC strategies for energy renovation of detached houses towards nZEB in cold climates
Heide, Vegard; Georges, Laurent; Lien, Anne Gunnarshaug; Mathisen, Hans Martin (Conference object; Journal article; Peer reviewed, 2019)This paper provides a review of heat and ventilation measures that can be applied to ambitious energy renovation of detached houses in Nordic countries. In this review, requirements for solutions are defined. Key technologies ... -
Skoler på vent. Tiltak for å ivareta inneklima og helse
Wågø, Solvår Irene; Clauß, John; Mathisen, Hans Martin; Gustavsen, Kai; Gullbrekken, Lars; Homb, Anders (SINTEF Fag;85, Research report, 2021)Målet for prosjektet "Skoler på vent" har vært å kartlegge innemiljøet og innemiljø-relaterte helseutfordringer i skolebygninger som er satt på vent, det vil si skolebygninger som venter på oppgraderinger eller som skal ... -
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 ... -
Understanding the role of moisture recovery in indoor humidity: An analytical study for a Norwegian single-family house during heating season
Liu, Peng; Justo Alonso, Maria; Mathisen, Hans Martin; Halfvardsson, Anneli; Simonson, Carey J. (Peer reviewed; Journal article, 2022)Providing a high-quality indoor environment with appropriate indoor humidity levels for residential buildings is essential for good physical and mental health, occupant comfort, and long-term building performance. The role ... -
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 ...