Blar i ODA Open Digital Archive på forfatter "Mysen, Mads"
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Behovsstyrt ventilasjon (DCV) med kombinert CO2- og temperaturstyring: Er det med hensyn på inneklima fornuftig å styre behovsstyrte ventilasjonsanlegg etter en kurve med varierende settpunkt for CO2 og temperatur?
Opsahl, Marie Flatmo (MAEN;2018, Master thesis, 2018)Dagens styring av behovsstyrt ventilasjon (DCV) baserer seg stort sett på et fast settpunkt for CO2 og temperatur. Styringsparameteren som når sitt settpunkt først blir styrende parameter. Denne oppgaven har undersøkt om ... -
CO2-DCV i barneskoler: Bør CO2-settpunkt differensieres for ulike brukergrupper?
Haugland, Martine Borgen (MAEN;2018, Master thesis, 2018)Dagens bruk av CO2-DCV som ventilasjonsstrategi baserer seg på en antagelse om at menneskers CO2-produksjon er proporsjonal med deres emisjon av bioeffluenter. Det differensieres ikke etter brukergrupper i anbefalinger ... -
Comparison of Two Ventilation Control Strategies in the First Passive House Standard Norwegian School
Cablé, Axel; Hammer, Hugo Lewi; Mysen, Mads (Journal article; Peer reviewed; Journal article, 2016-03-29)The perceived indoor climate resulting from two ventilation control strategies was evaluated in a classroom of the first school built according to the Norwegian passive house standard. Both strategies consisted of varying ... -
Demand-controlled ventilation in schools: Influence of base ventilation rates on subjective symptoms, perceived indoor environment and young adults' learning performance
Holøs, Sverre Bjørn; Yang, Aileen; Thunshelle, Kari; Mysen, Mads (SINTEF Proceedings;9, Conference object, 2021)The ventilation airflow rates in a demand-controlled ventilation strategy typically vary between a base (Vmin) and a maximum ventilation rate (Vmax). Classrooms have relatively short but intense hours of occupancy and a ... -
Demand-controlled ventilation: do different user groupsrequire different CO2-setpoints?
Haugland, Martine Borgen; Yang, Aileen; Holøs, Sverre Bjørn; Thunshelle, Kari; Mysen, Mads (IOP Conference Series: Materials Science and Engineering;Volume 609, 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 (Springer Proceedings in Energy;Cold Climate HVAC 2018 - Sustainable Buildings in Cold Climates, Conference object, 2018-12-12)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 (IOP Conference Series: Materials Science and Engineering;Volume 609, 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 (Springer Proceedings in Energy;Cold Climate HVAC 2018 - Sustainable Buildings in Cold Climates, Conference object, 2018-12-12)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 ... -
The influence of carpet flooring on the indoor climate; effects on perceived air quality, symptoms and particle concentrations
Hangeland, Mathias (MAEN;2018, Master thesis, 2018)Carpet flooring is a commonly used flooring material and is becoming a trend in offices with open plan landscape. Previous studies have found relations between the presence of carpet flooring and worsening of the perceived ... -
Kartlegging av reelle internlaster fra Miljøhuset GK
Svendsen, Ole Marius (Master thesis, 2019)Denne masteroppgaven kartlegger reelle internlaster for kontorrom fra Miljøhuset GK og sammenligner dette opp mot internlaster for kontorbygg etter NS/TS 3031:2016. Målet med oppgaven er å se om internlaster etter romnivå ... -
Performance assessment of all-air heating in an office cubicle equipped with an active supply diffuser in a cold climate
Rabani, Mehrdad; Madessa, Habtamu Bayera; Nord, Natasa; Schild, Peter; Mysen, Mads (Building and Environment;Volume 156, June 2019, Pages 123-136, Journal article; Peer reviewed, 2019-04-12)Low-temperature space heating systems play a prominent role in improving the indoor air quality (IAQ) and thermal comfort of energy efficient buildings in cold-climate countries such as Norway. All-air heating (AAH) systems ... -
Ringledning i ventilasjon: Målinger og simulering av ventilasjonsanlegget til et casebygg
Suen, Sissel (MAEN;2020, Master thesis, 2020)Oppgaven omhandler analyse av ringledning i ventilasjon med Gjennestad Videregående skole som casebygg. For korttidsmålingene ble det tvangsstyrt ulike belastningsscenarioer, mens langtidsmålingene var under normal drift. ... -
Should we differentiate ventilation requirements for different user groups?
Holand, Nora; Yang, Aileen; Holøs, Sverre Bjørn; Thunshelle, Kari; Mysen, Mads (Springer Proceedings in Energy;Cold Climate HVAC 2018 - Sustainable Buildings in Cold Climates, Conference object, 2018-12-12)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 ... -
Temperature-dependent ventilation rates might improve perceived air quality in a demand-controlled ventilation strategy
Yang, Aileen; Holøs, Sverre Bjørn; Opsahl Resvoll, Marie; Mysen, Mads; Fjellheim, Øystein (Building and Environment;Volume 205, November 2021, 108180, Peer reviewed; Journal article, 2021-07-24)The aim of the Best Vent project was to find the optimal control strategy for demand-controlled ventilation (DCV) without compromising on indoor air quality. In this paper, we discuss control strategies that would ensure ... -
Trådløs behovsstyrt ventilasjon: En kost-nytte analyse og sammenligning av installasjonskostnader
Bergersen, Jens Kunter (MAEN;2019, Master thesis, 2019)Installasjonkostnader for klimatiseringsløsninger er fluktuerende og dermed krevende å kartlegge. Oppgaven skal sammenligne installasjonskostnader for det trådløse ventilasjonsanlegget Swegon Wise 2 med Wise 1, Lindinvent ... -
Verktøy for klimagassfregnskap av VVS-installasjoner ved utarbeidelse av tilbud
Iversen, Amanda Godnes (MAEN;2022, Master thesis, 2022)For å nå klimamålene Norge har forpliktet seg til gjennom Parisavtalen og FNs bærekraftsmål er vi nødt til å redusere klimagassutslippene. Bygninger står for en stor del av klimagassutslippene. Tidligere forskning indikerer ... -
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 (The International Journal of Ventilation;, Journal article; Peer reviewed, 2018-02-20)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 (Springer Proceedings in Energy;CCC 2018: Cold Climate HVAC 2018, Conference object, 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 ...