Blar i Institutt for energi og prosessteknikk på tidsskrift "Building and Environment"
Viser treff 1-20 av 23
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Air heating of passive houses in cold climates: Investigation using detailed dynamic simulations
(Journal article; Peer reviewed, 2014)The passive house (PH) standard was originally defined for Central Europe and has subsequently been applied to many cold climate countries. In these conditions, the relation between this standard and the air heating (AH) ... -
An analytical method for evaluating and visualizing embodied carbon emissions of buildings
(Peer reviewed; Journal article, 2020)Greenhouse gas emissions associated with buildings constitute a large part of global emissions, where building materials and associated processes make up a significant fraction. These emissions are complicated to evaluate ... -
Assessing the indoor air quality and their predictor variable in 21 home offices during the Covid-19 pandemic in Norway
(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 ... -
Characterization of the density-driven counter-flow through a doorway using Large Eddy Simulation
(Peer reviewed; Journal article, 2022)The density-driven bidirectional flow through an open doorway is of prime importance for ventilation and heat distribution between rooms in buildings. Although this flow has been extensively studied in the past, some ... -
Embodied greenhouse gas emissions in structural materials for the German residential building stock - Quantification and mitigation scenarios
(Peer reviewed; Journal article, 2023)Embodied emissions in construction materials make a relevant contribution to carbon emissions worldwide. While this has been broadly recognised, only little attention has been paid to the role of load-bearing structures ... -
Estimating dynamic climate change effects of material use in buildings — Timing, uncertainty, and emission sources
(Peer reviewed; Journal article, 2021)Material use in buildings affects the climate over centuries, however, temporal aspects are often ignored in Life Cycle Assessment (LCA). Results too often promise uncontested precision of impacts occurring far into the ... -
Estimating the impact of indoor relative humidity on SARS-CoV-2 airborne transmission risk using a new modification of the Wells-Riley model
(Peer reviewed; Journal article, 2021)A novel modified version of the Wells-Riley model was used to estimate the impact of relative humidity (RH) on the removal of respiratory droplets containing the SARS-CoV-2 virus by deposition through gravitational settling ... -
Evaluation of frost prevention strategies for membrane energy exchangers
(Journal article; Peer reviewed, 2023) -
Evaluation of low-cost formaldehyde sensors calibration
(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 ... -
Experimental study on the exposure level of surgical staff to SARS-CoV-2 in operating rooms with mixing ventilation under negative pressure
(Peer reviewed; Journal article, 2022)The purpose of this study was to reveal the exposure level of surgical staff to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from the patient's nose and wound during operations on COVID-19 patients. The ... -
Heat recovery ventilation design limitations due to LHC for different ventilation strategies in ZEB
(Journal article; Peer reviewed, 2022) -
An international review of occupant-related aspects of building energy codes and standards
(Peer reviewed; Journal article, 2020)In light of recent research, it is evident that occupants are playing an increasingly important role in building energy performance. Despite the important role of building energy codes and standards in design, the ... -
Life cycle analysis of GHG emissions from the building retrofitting: The case of a Norwegian office building
(Peer reviewed; Journal article, 2021)Through a systematic study, this paper conducted a life cycle assessment (LCA) consisting of evaluation of both embodied and operational emissions of different building retrofitting scenarios for a typical office building, ... -
A methodology for the selection of pollutants for ensuring good indoor air quality using the de-trended cross-correlation function
(Peer reviewed; Journal article, 2021)CO2 is customarily used to control ventilation as it is a proxy for bio-effluents and pollutants related to the presence and activity of people in the room. However, CO2 could not be a satisfactory indicator for pollutants ... -
Modeling occupant behavior in buildings
(Journal article; Peer reviewed, 2020)In the last four decades several methods have been used to model occupants' presence and actions (OPA) in buildings according to different purposes, available computational power, and technical solutions. This study reviews ... -
New dose-response model and SARS-CoV-2 quanta emission rates for calculating the long-range airborne infection risk
(Peer reviewed; Journal article, 2022)Predictive models for airborne infection risk have been extensively used during the pandemic, but there is yet still no consensus on a common approach, which may create misinterpretation of results among public health ... -
Performance assessment of all-air heating in an office cubicle equipped with an active supply diffuser in a cold climate
(Journal article; Peer reviewed, 2019)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 ... -
Suitability evaluation on laminar airflow and mixing airflow distribution strategies in operating rooms: A case study at St. Olavs Hospital
(Journal article, 2021)Operating room (OR) is an indispensable department in a hospital, while its ventilation system is an important engineering solution to ensure safety for surgical procedures. Suitable ventilation system in the OR should be ... -
Tracer gas techniques for airflow characterization in double skin facades
(Peer reviewed; Journal article, 2022)Monitoring airflow rates and fluid dynamics phenomena in the ventilated cavity is a challenging aspect of the experimental assessment of the performance of double-skin facades (DSF). There are various methods to characterize ... -
Understanding the role of moisture recovery in indoor humidity: An analytical study for a Norwegian single-family house during heating season
(Journal article; Peer reviewed, 2022)