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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 ...
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 ...
Infrared Thermal Signature Evaluation of a Pure and Saline Ice for Marine Operations in Cold Climate
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2015)
Marine operations in cold climates are subjected to abundant ice accretion, which can lead to heavy ice loads over larger surface area. For safe and adequate operations on marine vessels over a larger area, remote ice detection and ice mitigation system can be useful. To study this remote ice detection option, lab experimentation was performed to detect the thermal gradient of ice with the infrared ...
Sea-spray measurement tools and technique employed in marine icing field expeditions: A critical literature review and assessment using CFD simulations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-24)
Sea-spray icing resulting from sea spray droplets accreting on exposed surfaces poses a significant safety concern
for vessels and marine structures operating in cold climate regions. One of the key parameters determining the
amount of ice accretion is the quantity of incoming sea spray, which eventually comes in contact with the
structure in the presence of brine film freezing temperature. Hence, ...
Sea-spray measurement tools and technique employed in marine icing field expeditions: A critical literature review and assessment using CFD simulations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-24)
Sea-spray icing resulting from sea spray droplets accreting on exposed surfaces poses a significant safety concern
for vessels and marine structures operating in cold climate regions. One of the key parameters determining the
amount of ice accretion is the quantity of incoming sea spray, which eventually comes in contact with the
structure in the presence of brine film freezing temperature. Hence, ...
Design, development and deployment of a novel sea spray collector for sea-spray flux measurements
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-19)
The risk of sea-spray icing on vessels and marine structures in cold regions highlights the need for an accurate
and robust marine-icing estimation model. To develop such a model, it is crucial to accurately determine the
quantity of liquid water available for freezing on the structure, as it directly influences ice formation. As sea
spray constitutes the primary source of liquid water contributing ...
Spray Icing on ONEGA Vessel- A Comparison of Liquid Water Content Expressions
(Journal article; Tidsskriftartikkel, 2022)
The hazards associated with ice accretion primarily due to impinging freezing sea spray on ship structures are considered among serious safety concerns for ships operating in the colder regions. An accurate sea-spray icing-estimation model to evaluate the ice accumulation during operations in these regions can make marine operations safer. The accuracy of the present icing models for estimating icing ...