Blar i SINTEF Open på forfatter "Thunshelle, Kari"
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Acceptable air velocities using demand-controlled ventilation for individual cooling
Thunshelle, Kari; Nordby, Henrik S.; Solberg, Håkon Rikoll; Holøs, Sverre Bjørn; Schild, Peter (Peer reviewed; Conference object; Journal article, 2020)One of the main challenges in highly insulated buildings is the increasing share of energy demand for cooling. New solutions for low energy cooling are needed. Individual cooling by demand-controlled ventilation and use ... -
Brukerundersøkelse om innemiljø på Marienlyst skole
Thunshelle, Kari; Hauge, Åshild Lappegard (ZEB Project report;5, Research report, 2012) -
Demand-controlled ventilation: do different user groups require different CO2-setpoints?
Haugland, Martine Borgen; Yang, Aileen; Holøs, Sverre Bjørn; Thunshelle, Kari; Mysen, Mads (Journal article; Peer reviewed, 2019)The aim of this study is to investigate whether children's bioeffluent generation rate is proportional to their carbon dioxide (CO2) generation rate. Consequently, to assess if there is a need to differentiate the CO2- ... -
Effect of filter type in ventilation systems on NO2 concentrations in classrooms
Yang, Aileen; Nikolaisen, Kristian Fredrik; Holøs, Sverre Bjørn; Thunshelle, Kari; Dauge, Franck Rene; Mysen, Mads (Cold Climate HVAC;2018, Chapter; Conference object; Peer reviewed, 2019)This study was conducted to assess how different filter types in the ventilation system affect the indoor NO2 concentrations. Measurements were carried out in two classrooms and air intakes in a primary school located in ... -
Effect of ventilation on perceived air quality in 18 classrooms
Holøs, Sverre Bjørn; Yang, Aileen; Thunshelle, Kari; Mysen, Mads (Conference object; Journal article; Peer reviewed, 2019)The aim of this paper is to assess whether reducing the minimum ventilation airflow rate (Vmin) has any negative impacts on perceived air quality (PAQ) upon entering an unoccupied room. Seventeen healthy young adults were ... -
How Does Low Relative Humidity Affect Perceived Air Quality, Thermal Comfort and Symptoms in Modern Office Buildings in Cold Climates?
Lind, Merethe; Holøs, Sverre Bjørn; Thunshelle, Kari; Yang, Aileen; Mysen, Mads (Chapter, 2019)To assess how people are influenced by relative humidity (RH) in cold climates, a study was conducted in an open office landscape in Oslo, Norway. The study took place during three cold days in February 2017. Fourteen ... -
Impact of Typical Faults Occurring in Demand-controlled Ventilation on Energy and Indoor Environment in a Nordic Climate
Andersen, Kamilla Heimar; Holøs, Sverre Bjørn; Yang, Aileen; Thunshelle, Kari; Fjellheim, Øystein; Jensen, Rasmus (Peer reviewed; Conference object; Journal article, 2020)This study evaluates typical faults occurring in demand-controlled ventilation (DCV) system and the impact on three output results: energy use, thermal comfort, and indoor air quality. The methodologies used in this study ... -
Mot et lavutslippsamfunn. Energi og energiforsyning - en mulighetsstudie: Case Brøset
Murphy, Mark Allen; Thunshelle, Kari; Wigenstad, Tore (Prosjektrapport (SINTEF Byggforsk);62, Research report, 2010)Rapporten konkluderer ikke mht. optimal løsning for å oppnå et lavt utslipp ved bruk av stasjonær energi. Imidlertid er den ment å gi en oversikt over hvordan problemstillingen kan belyses, og hvordan en kan jobbe med ulike ... -
Oppvarming via tilluft. Veiledning og krav for næringsbygg med enerigambisjoner
Thunshelle, Kari (SINTEF Fag;38, Research report, 2016) -
Process-related risks in refurbishment of dwellings using prefabricated wall elements with integrated PV and ventilation ducts
Holøs, Sverre Bjørn; Lukina, V.; Hauge, Åshild Lappegard; Thunshelle, Kari (Conference object; Journal article; Peer reviewed, 2019)Prefabricated façade elements with integrated technical infrastructure is an attractive technology for refurbishment of existing dwellings. Heating and cooling demand can be reduced, local energy production introduced, and ... -
Renovation concepts for residential buildings. Research status, challenges and opportunities
Haase, Matthias; Lolli, Nicola; Thunshelle, Kari (ZEN Report;, Research report, 2020)This study looks at the challenges and opportunities in the deep energy renovation market with prefab elements. An analysis of 39 European projects was conducted, and the results where structured in three topics. It clearly ... -
Should we differentiate ventilation requirements for different user groups?
Holand, Nora; Yang, Aileen; Holøs, Sverre Bjørn; Thunshelle, Kari; Mysen, Mads (Springer Proceedings in Energy;1:2019, Chapter; Conference object; Peer reviewed, 2019)The aim of our study is to investigate whether it is necessary to adjust the venti-lation requirements according to different user groups. This study is focusing es-pecially on teenagers, who might have a higher odour load ... -
Thermal comfort, thermal sensation and skin temperature measurements using demand-controlled ventilation for individual cooling
Solberg, Håkon Rikoll; Thunshelle, Kari; Schild, Peter (Peer reviewed; Conference object; Journal article, 2020)An increasing part of modern building's energy demand is due to cooling. An ongoing research project investigates the possibility to reduce the energy consumption from cooling by utilizing an individually controlled active ... -
VOC emission rates in newly built and renovated buildings, and the influence of ventilation – a review and meta-analysis
Holøs, Sverre Bjørn; Yang, Aileen; Lind, Merethe; Thunshelle, Kari; Schild, Peter; Mysen, Mads (Journal article; Peer reviewed, 2018)Few field studies have evaluated ventilation strategies, such as temporarily increasing the ventilation rate, to counter the high pollutant-load from off-gassing of volatile compounds from new materials in these buildings. ... -
What should the Minimum Ventilation Rate Be in a Demand-Controlled Ventilation Strategy?
Mysen, Mads; Holøs, Sverre Bjørn; Yang, Aileen; Thunshelle, Kari; Schild, Peter (Chapter, 2019)Demand-Controlled Ventilation is emerging as a dominant ventilation strategy in non-residential buildings in Norway. The ventilation airflow rate is controlled between pre-set minimum (Vmin) and maximum (Vmax) values, based ...