Blar i Publikasjoner fra CRIStin - NTNU på tittel
Viser treff 12693-12712 av 37533
-
Experimental study of dispersed oil-water flow in a horizontal pipe with enhanced inlet mixing, Part 1: Flow patterns, phase distributions and pressure gradients
(Journal article; Peer reviewed, 2016)The study demonstrates how a disturbance of the flow can affect the pressure gradient and further needs a considerable development length to recover. This is of importance for experimental studies as well as industrial ... -
Experimental study of dispersed oil-water flow in a horizontal pipe with enhanced inlet mixing, Part 2: In-situ droplet measurements
(Journal article; Peer reviewed, 2016)Droplet size measurements in premixed oil-water flow are presented. Three traversable focused beam reflectance measurement probes (FBRM) positioned along the test section allowed for measuring averaged droplet size profiles ... -
Experimental study of drilling riser and wellhead force by small scale testing
(Peer reviewed; Journal article, 2022)Small-scale model tests of a drilling riser were conducted, aiming at a better understanding of the mechanical transfer of forces from the drilling riser to the wellhead. The tests were conducted in a water tank with ... -
Experimental study of effectiveness of robotic cleaning for fish-processing plants
(Journal article; Peer reviewed, 2019)This paper presents the development and experimental testing of the effectiveness of a robotic cleaning system for fish processing plants. The processing of fish introduces a substantial risk of bacterial contamination, ... -
Experimental Study of Formation Damage during Underbalanced-Drilling in Naturally Fractured Formations
(Journal article; Peer reviewed, 2011)This paper describes an experimental investigation of formation damage in a fractured carbonate core sample under underbalanced drilling (UBD) conditions. A major portion of this study has concentrated on problems which ... -
Experimental Study of Ignition Delay, Combustion, and NO Emission Characteristics of Hydrogenated Vegetable Oil
(Journal article; Peer reviewed, 2019)In this article, a comparative study of hydrogenated vegetable oil (HVO) and diesel was performed in two constant volume combustion rigs and an optical accessible compression-ignited chamber (OACIC). Ignition, combustion, ... -
Experimental study of installation procedure and volume estimation of tarpaulin for chemical treatment of fish in floating cages
(Journal article; Peer reviewed, 2017)In the salmon industry chemical delousing is done by enclosing the cage in a tarpaulin, and then mixing the chemical agent in the enclosed water volume. Correct dosage is important to obtain the wanted effect, and in order ... -
Experimental study of Isobutane (R600a) evaporation in microfinned and smooth tubes
(Chapter, 2020)Heat transfer coefficient and pressure drop of Isobutane (R600a) in an internally enhanced tube has been experimentally measured and compared to a smooth tube with the same outer diameter of 5 mm. The effects of mass flux ... -
Experimental study of seismic dispersion: Influence of clay mineral content
(Journal article; Peer reviewed, 2023)We conducted an extensive study on the elastic properties of Opalinus Clay and the overlying and underlying rock formations, which range in the overall clay mineral content from nearly 0 wt.% to 60 wt.%. Our laboratory ... -
An Experimental Study of Short-Circuit Current Making Operation of Air Medium-Voltage Load Break Switches
(Peer reviewed; Journal article, 2022)Replacing SF 6 , the most potent greenhouse gas, with an alternative gas is a challenge faced by medium-voltage load break switches (MV-LBS). Air is a possible alternative, but there are some challenges regarding low ... -
Experimental study of smouldering in wood pellets with and without air draft
(Journal article; Peer reviewed, 2020)Dry wood pellets (diameter 8 mm) of mixed Norwegian spruce and pine were tested in samples of 1.25 kg (1.7 l) in configurations with and without air draft from below. The pellets were placed in a vertical 15 cm diameter ... -
Experimental Study of the Charring of I-Joists and Recession of Combustible Insulation in Light Timber Frame Assemblies with Comparison to Eurocode 5
(Peer reviewed; Journal article, 2023)Design models are commonly used in fire safety design of light timber frame assemblies. Parameters for use in the models are available for rectangular members with mineral wool, wood fibre or cellulose insulation and for ... -
Experimental study of the functionality of a semisubmersible wind turbine combined with flap-type Wave Energy Converters
(Journal article; Peer reviewed, 2016)In the present paper the functionality of the Semisubmersible wind energy and Flap-type wave energy Converter (SFC) is examined experimentally. In order to study the functionality of the SFC, the focus is on operational ... -
Experimental study of the heat transfer problem in expansion devices in CO2 refrigeration systems
(Journal article; Peer reviewed, 2019)Two expansion devices designed for CO2 refrigeration systems namely, capillary tube and fixed-geometry ejector were experimentally tested in the SINTEF/NTNU laboratory in Trondheim, Norway to determine the influence of ... -
Experimental study of the interaction between thermal plumes and human breathing in an undisturbed indoor environment
(Peer reviewed; Journal article, 2020)This study characterized the interaction between human thermal plume and breathing air flow while people are sitting in a quiescent indoor environment. A sitting breathing thermal manikin was developed to mimic a real ... -
Experimental study of the mutual interactions between waves and tailored turbulence
(Peer reviewed; Journal article, 2023)When surface waves interact with ambient turbulence, the two affect each other mutually. Turbulent eddies get redirected, intensified and periodically stretched and compressed, while the waves suffer directional scattering. ... -
Experimental study of the simultaneous effect of nano-silica and nano-carbon black on permeability and mechanical properties of the concrete
(Journal article; Peer reviewed, 2019)The permeability level and resistance of the concrete cutoff wall of earth dam on the penetration of fluids are crucial factors and have an essential effect on the stability of the concrete core. In this research, the ... -
Experimental study of the use of tracing particles for interface tracking in primary cementing in an eccentric hele–shaw cell
(Peer reviewed; Journal article, 2021)We present the results of the displacement flows of different Newtonian and Herschel–Bulkley non-Newtonian fluids in a new-developed eccentric Hele–Shaw cell with dynamic similarly to real field wellbore annulus during ... -
Experimental Study of Thermal Buoyancy in the Cavity of Ventilated Roofs
(Journal article; Peer reviewed, 2020)Pitched wooden roofs are ventilated through an air cavity beneath the roofing in order to remove heat and moisture from the roof construction. The ventilation is driven by wind pressure and thermal buoyancy. This paper ... -
Experimental Study of Thermal Conductivity and Compression Measurements of the GDL-MPL Interfacial Composite Region
(Journal article, 2016)MPL and GDL in a PEM fuel cell assembly are often treated as separate layers in the literature. However, there exists a considerable interfacial region where the two different materials merge. The MPL consists of fine ...