Methods for the Alleviation of Ship Icing.

Tests were made, both in an icing wind tunnel and at an outdoor test site, of various proposals for the alleviation of the problem caused by the freezing of sea spray on the superstructures of ships. Of the devices evaluated, a pneumatic de-icing technique proved the most effective under all conditi...

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Bibliographic Details
Main Author: Stallabrass,J. R.
Other Authors: NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF MECHANICAL ENGINEERING
Format: Text
Language:English
Published: 1970
Subjects:
Snow
Ice and Permafrost
Marine Engineering
*SHIPS
*ICE PREVENTION
FREEZING
WIND TUNNELS
SEA WATER
SPRAYS
SURFACES
REDUCTION
FOAM
PLASTICS
RUBBER COATINGS
ADHESION
ETHYLENES
GLYCOLS
CANADA
PNEUMATIC EQUIPMENT
EXPANDED PLASTICS
*DEICING
ETHYLENE GLYCOL
Canada
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0721960
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0721960
Description
Summary:Tests were made, both in an icing wind tunnel and at an outdoor test site, of various proposals for the alleviation of the problem caused by the freezing of sea spray on the superstructures of ships. Of the devices evaluated, a pneumatic de-icing technique proved the most effective under all conditions for the de-icing both of masts and of flat surfaces such as bridge fronts. Next in effectiveness was the use of ethylene glycol as a freezing point depressant to reduce the strength and adhesion of the ice. Several passive methods were tried, but none was very effective, with the exception of a plastic foam with an outer layer of neoprene rubber. (Author)

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