Browsing TKD - Institutt for bygg- og energiteknikk by Title
Now showing items 334-353 of 460
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Parametric analysis of ground source heat pump system for heating of office buildings in Nordic climate
(BuildSIM-Nordic 2020: Selected papers;, Conference object, 2020)This paper presents a sensitivity analysis followed by an optimization to improve the performance of a ground source heat pump (GSHP) system for an office building located in Norway, for Oslo, Stavanger, and Tromsø climatic ... -
Parametric analysis of masonry arches following a limit analysis approach: Influence of joint friction, pier texture, and arch shallowness
(Peer reviewed; Journal article, 2023)Among the most characteristic structures in historical constructions for crossing large spans are the masonry vaulted structures by utilizing their geometric stability to safely transfer the loads to supports with regard ... -
Parametric failure limit detection for the sheet metal forming of a floating photovoltaic (FPV) aluminum alloy structure
(Chapter; Peer reviewed; Conference object; Journal article, 2024)The sheet metal forming process of a floating photovoltaic (FPV) structure is simulated in LS-DYNA. An anisotropic yield criterion and a two-term Voce hardening law are used to model the plastic behavior of AA5083-H111 ... -
Parametric study and dynamic response analysis of three single curved discrete pontoon floating bridges
(Ships and Offshore Structures;, Peer reviewed; Journal article, 2021-06-26)In this paper, three curved floating bridge concepts with a uniform span of 500 m and different radii of curvature are proposed for the crossing of the coastal waters in Singapore. The bridge girder is supported by 4 ... -
Parametric Study of a Vertically Configured Ground Source Heat Pump System
(Journal article; Peer reviewed, 2017)Ground source heat pumps are being common in western countries in order to reduce the primary energy consumption and the corresponding greenhouse gas emissions associated with heating and cooling of buildings. In this ... -
Passive cooling performance of a test room equipped with normal and new designed Trombe walls: A numerical approach
(Sustainable Energy Technologies and Assessments;Volume 33, June, Journal article; Peer reviewed, 2019-03-29)This paper is dedicated to numerically appraise the passive cooling performance of the new designed and normal Trombe walls combined with solar chimney and water spraying system (WSS) in a test room under Yazd (Iran) desert ... -
Performance analysis of a solar thermal system coupled with a ground source heat pump in Nordic conditions
(E3S Web of Conferences;, Peer reviewed; Journal article, 2022)The main objective of this work is to investigate the energy and exergy performance of a solar assisted ground source heat pump for a school building designed according to Norwegian passive house standard. The system is ... -
Performance analysis of an active diffuser in mixing ventilation for cell office by using numerical approach
(E3S Web of Conferences;Volume 111 (2019), Journal article; Peer reviewed, 2019)Energy efficiency in buildings is nowadays considered as an essential step to reduce CO2 emissions and energy utilization. At the same time, new technologies such as building space heating using active air heating has ... -
Performance analysis of roof-mounted photovoltaic systems The case of a Norwegian residential building
(Energy Procedia;83, Journal article; Peer reviewed, 2015-12)Currently, the application of solar Photovoltaic (PV) systems on energy efficient buildings such as passive house, zero energy building (ZEB) and net-positive energy building (NPEB) is becoming increasingly attractive, ... -
Performance assessment of all-air heating in an office cubicle equipped with an active supply diffuser in a cold climate
(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 ... -
Performance Evaluation of Ceiling Cooling with PCM in the Hot-Dry Climate of Yazd, Iran: An Experimental Analysis of Energy, Environmental, and Economic Impacts
(Peer reviewed; Journal article, 2025)The present study investigates experimental cooling from the ceiling using phase change materials (PCMs) in Yazd, a city characterized by a hot and dry climate. A one-fourth scale model of a real room, measuring 4 m ×3 m ... -
Performance-based seismic assessment of a historical masonry arch bridge: Effect of pulse-like excitations
(Peer reviewed; Journal article, 2023)Seismic analysis of historical masonry bridges is important for authorities in all countries hosting such cultural heritage assets. The masonry arch bridge investigated in this study was built during the Roman period and ... -
Phase field model for mixed mode fracture in concrete
(Peer reviewed; Journal article, 2023)Concrete is a quasi-brittle material and generally fails in mixed mode I-II fracture. The fracture energy release in mode I and mode II during crack propagation is usually different. However, the tensile test fracture ... -
Phonon Transport Characteristics of Nano-Silicon Thin Films Irradiated by Ultrafast Laser under Dispersion Relation
(Peer reviewed; Journal article, 2024)The gray model simplifies calculations by ignoring phonon polarization, but sacrifices a certain level of computational accuracy. In effect, the frequency and wavevector of phonons form complex polarization patterns, which ... -
Phonon Transport Characteristics of Nano-Silicon Thin Films Irradiated by Ultrafast Laser under Dispersion Relation
(Peer reviewed; Journal article, 2024)The gray model simplifies calculations by ignoring phonon polarization, but sacrifices a certain level of computational accuracy. In effect, the frequency and wavevector of phonons form complex polarization patterns, which ... -
Pipe losses : A numerical study using Computational Fluid Dynamics
(Bachelor thesis, 2018-05-22)This report contains the results from the simulations done in STAR-CCM+ to predict pipe losses, including a validation case with straight smooth/rough pipes, and smooth pipes with 90 degree bends. Results show excellent ... -
POD-interpolation based prediction of indoor airflows
(SINTEF proceedings;No 5, Journal article; Peer reviewed, 2020)This work reports a proper orthogonal decomposition (POD)-interpolation based prediction of indoor airows related to displacement ventilation. Steadystate computational uid dynamics (CFD) solution snapshots with varying ... -
Poretrykks- og stabilitetsanalyse for Dam Storvatn og bevaring av damstabilitet.
(Bachelor thesis, 2019)Det er mange fyllingsdammer i Norge, noen ble bygd så lenge som 300 år siden. Dette betyr at det er en del damanlegg som ble bygd med utilstrekkelig, eller begrensede ressurser og før ordentlig lovverk ble fastsatt. Det ... -
Post-COVID ventilation design: Infection risk-based target ventilation rates and point source ventilation effectiveness
(Peer reviewed; Journal article, 2023)Ventilation, air filtration and disinfection have been found to be the main engineering measures to control the airborne respiratory infection transmission in shared indoor spaces. Wells-Riley model modifications allow to ... -
Pozzolanisk høyfast betong med tilgjengelige materialer
(Bachelor thesis, 2019)Denne bacheloroppgaven omhandler muligheten for å produsere pozzolanisk høyfast betong, med tilstrekkelig støpelighet, trykkfasthet innenfor definisjonsområdet gitt i Eurokode 2, og som utnytter tilgjengelige materialer ...