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Marine icing observed on KV Nordkapp during a cold air outbreak with a developing polar low in the Barents sea.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06)
Marine icing is a phenomenon that may occur for temperatures below subfreezing where sea spray
either is lofted from the sea surface or being generated by waves interacting with a ship or a
structure. On a voyage from Tromsø to the waters east of Bjørnøya late February 1987, the
Norwegian Coast Guard vessel KV Nordkapp experienced heavy icing due to a polar low that raged
over these waters during ...
Infrared Detection for Anti-Icing Systems in Ship Operations
(Conference object; Konferansebidrag, 2014)
Ice Detection Setup Using Infrared and Active Heating
(Conference object; Konferansebidrag, 2015)
Considering the cold environment operations, ice accretion can occur at a rapid pace and can adversely affect the operations. In such scenario, ice detection is
useful for the ice mitigation and removal upon the marine and offshore structures. Various techniques exist in the literature to detect the icing mainly utilizing its
physical or electromagnetic properties. The parameters measured by these ...
Measuring the Sea Spray Flux using High-Speed Camera
(Conference object; Konferansebidrag, 2015-12-10)
The sea spray contains water droplets that are produced due to sea waves that collide with the marine structures as well as the breaking of waves due to the strong winds. Similarly, fog and precipitation at sea level may contribute to the phenomenon of sea spray containing water droplets of minuscule sizes. Wind characteristics (speed and direction) also has a direct influence on the speed of water ...
Determination of Thermal Properties of Fresh Water and Sea Water Ice using Multiphysics Analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-29)
This paper presents a methodology to determine the thermal conductivity of ice using multiphysics analysis. This methodology used a combination of both experimentation and numerical simulation. In the experimental work, an ice block is observed using an infrared camera. The results reveal the variation in temperature over the surface. These results are dependent on two primary heat transfer parameters, ...
Multiphysics Simulation of Infrared Signature of an Ice Cube
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-29)
This paper presents numerical methodologies to simulate the Infrared (IR) signature of an ice cube. The ice was frozen in a cold environment (-28<sup>o</sup>C) and allowed to have uniform temperature throughout. It was then taken out and let to warm at room temperature conditions by means of natural convection. A 3D transient heat equation is solved using three different methodologies. In the first ...
Ice Detection of Pure and Saline Ice Using Infrared Signature
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11-30)
The paper shows the possible implementation of an Infrared (IR) ice detection technique. In respect of safety in marine operations, saline ice detection can be significant for automated de-icing systems. Experimentation is performed to observe and detect saline and pure ice samples. The discussed detection mechanism is unique and differs from passive IR detection by introducing the self-heating ...
Multi-fluidic Simulation using Multiphysics tools: Case Study on a LNG Plant
(Conference object; Konferansebidrag, 2014)
Infrared Thermal Signature Evaluation of a Pure Ice Block
(Conference object; Konferansebidrag, 2015-08-23)
Marine operations in cold climates are subjected to
heavy ice accretion, which can lead to heavy ice loads causing
safety concerns. Atmospheric and sea spray icing can cause
severe ice accretion on structures. Ice detection over the
relatively larger surface area of marine platforms and vessels
could be significant for ice mitigation and its removal in cold
climates. A thermal ice signature ...
Marine Icing and Anti/De-icing Systems
(Conference object; Konferansebidrag, 2015-12-10)
Shipping operations are on the rise in the Arctic region. Due to these increased activities, maritime transport operations are encountering significant challenges with
respect to the safety and reliability. These shipping operations are comprised of commercial vessels such as oil tankers, container ships, fishing vessels, tourism
cruises, research and offshore exploration vessels and icebreakers
In ...