Blar i Institutt for energi og prosessteknikk på tittel
Viser treff 455-474 av 4107
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C1continuous h-adaptive least-squares spectral elementmethod for phase-field models
(Journal article; Peer reviewed, 2018)The phase-field method has been successfully modeled the interface dynamics in multiphase flow phenomena. However, there has been a great disjunction in the interface thickness between in reality and in numerics due to the ... -
Cable optimization in a specific Wind Farm
(Master thesis, 2010)Most commonly used wake models were developed in the 80`s, and gave satisfactory results for small WF`s or single turbines. Amongst these models are Ainslie, J.F, Jensen, N.O, and Crespo, A. It has however been agreed that ... -
Calculating emission savings at electric construction sites
(Bachelor thesis, 2023)Norge har satt seg et mål om å ha en utslippsfri byggebransje innen 2030. For at dette skal være mulig er det nødvendig å finne en alternativ energikilde for å drifte byggeplassene. Aneo Build har en løsning der de leverer ... -
Calculation of interface curvatures with the level-set method for two-phase flow simulations and a second-order diffuse-domain method for elliptic problems in complex geometries
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:214, Doctoral thesis, 2013)This thesis considers in the first part the mathematical modelling of incompressible two-phase flow, in particular the calculation of interface curvatures and normal vectors with the level-set method. The main contribution ... -
Calculation of NOx Formation in a Swirl Burner
(Master thesis, 2008)This thesis embraces simulations of NOx emissions from a partially premixed 20 kW swirl burner. The simulations were carried out in the commercial computational fluid dynamics software FLUENT. The concept of partial premixing ... -
Calculation of Particle Resuspension Using Static and Dynamic Particle Models
(Master thesis, 2011)The aim of this master work was to investigate particle resuspension from fouled heatexchanger surfaces. In metallurgical industries, the waste gas may contain dust and particles which can deposit on the heat exchanger ... -
Calculation of the interface curvature and normal vector with the level-set method
(Journal article, 2013)This article addresses the use of the level-set method for capturing the interface between two fluids. One of the advantages of the level-set method is that the curvature and the normal vector of the interface can be readily ... -
Calibration and uncertainty analysis of pressure sensors used for dynamic measurements
(Master thesis, 2017)Dynamic calibration of pressure sensors is challenging. Often, steady-state calibration is applied on pressure sensors used to measure dynamical measurements. Steady-state calibration does not represent the dynamic behavior ... -
Calibration of strain gauges on a model runner blade combining numerical and experimental data
(Peer reviewed; Journal article, 2023)In this paper, we present the calibration setup, method, and results for a set of strain gauges installed on the trailing edge of the runner blades of a model Francis turbine. The calibration work is done as a step in the ... -
Can air pollution affect tear film stability? a cross-sectional study in the aftermath of an explosion accident
(Journal article; Peer reviewed, 2011)Background: After an explosion and fire in two tanks containing contaminated oil and sulphur products in a Norwegian industrial harbour in 2007, the surrounding area was polluted. This caused an intense smell, lasting ... -
Can clothing systems and human activities in operating rooms with mixing ventilation systems help achieve 10 CFU/m3 level during orthopaedic surgeries?
(Journal article, 2021)The level of airborne microbial contamination in operating rooms (ORs) is an important indicator of indoor air quality and ensures a clean surgical environment. It is necessary to research how different factors affect the ... -
Can CO2 sensors in the ventilation system of a pool facility help reduce the variability in the trihalomethane concentration observed in indoor air?
(Peer reviewed; Journal article, 2020)Volatile and hazardous compounds are formed during the chlorination of pool water. Monitoring components in the air, such as the four trihalomethanes; chloroform, dichlorobromomethane, dibromochloromethane and bromoform ... -
Can flow oscillations during flow boiling deteriorate the heat transfer coefficient?
(Journal article; Peer reviewed, 2018)Two-phase flow instabilities have been identified as one of the impediments for achieving high heat flux in boiling systems due to their potential heat transfer deterioration. However, most of the fundamental characteristics ... -
Can the gamma-ray bursts travelling through the interstellar space be explained without invoking the drastic assumption of Lorentz invariance violation?
(Peer reviewed; Journal article, 2021)Experimental observations indicate that gamma-ray bursts (GRB) and high-energy neutrino bursts may travel at different speeds with a typical delay measured at the order of hours or days. We discuss two potential interpretations ... -
Can the heat transfer coefficients for single-phase flow and for convective flow boiling be equivalent?
(Journal article; Peer reviewed, 2018)During the past few decades, heat transfer during convective flow boiling inside pipes has been widely studied with the goal of unveiling the physics of the process. Different heat transfer mechanisms have been suggested ... -
Can the Hubble tension be resolved by bulk viscosity?
(Journal article; Peer reviewed, 2021)We show that the cosmic bulk viscosity estimated in our previous works is sufficient to bridge the H0 value inferred from observations of the early universe with the value inferred from the local (late) universe. -
Can we meet the requirement for ultra-clean operation room (10CFU/m3) with dilution ventilation?
(Journal article; Peer reviewed, 2019)The objective of this study is to analyse what conditions may, and may not take place during surgery in a dilution ventilated operating room (OR), to fulfil an ultra-clean requirement (10 CFU/m3). To achieve the objective, ... -
Capacity Upgrading of Offshore Oil and Gas Production Facility
(Master thesis, 2014)The design of existing offshore processing facilities for oil and gas often need to be reconsidered after some years of production due to changes in operating conditions. One example is the Ekofisk 2/4 J facilities. Here, ... -
The capital load of global material footprints
(Peer reviewed; Journal article, 2020)Despite calls for large-scale reductions in material use and efforts to initiate a “circular economy” that promotes recycling and reuse, a limited decoupling between overall resource extraction and economic growth has been ... -
Carbohydrate Yield and Biomethane Potential from Enzymatically Hydrolysed Saccharina latissima and Its Industrial Potential
(Journal article; Peer reviewed, 2019)The demand for fuel for utilisation of machinery and transport has culminated in large amounts of fossil fuel usage in the last century. The environmental dangers attached with the usage of fossil fuels have created a large ...