Utilising Implanted Carbon Fibre As A Resistive
Heating Element In Wind Turbine Blade
Anti-icing Systems
Author(s)
A. Maheri
Abstract
Wind turbines installed in cold climates are at risk of blade icing and required to
be equipped with systems preventing the build-up of ice and/or ice removal. This
paper presents the results of a preliminary investigation on the feasibility and
suitability of using carbon fibres as resistive heating elements implanted in the
structure of the composite blades. The proof of the concept of using carbon fibre
implanted in a glass fibre composite as heating elements for de-icing purpose is
demonstrated. Moreover, using a genetic algorithm (GA) optimiser the optimum
depth of implanted carbon fibres and the optimum magnitude of heat source
which minimise the energy consumption of the system whilst subjected to
manufacturing and controllability constraints are obtained. A finite difference
model has been also developed to perform the transient heat transfer analysis
which is to be used as the evaluator for the optimiser module. The effect of
heated fibres on the fibre-matrix debonding strength is also examined. It is
shown that, heating the carbon fibres up to 95ºC does not affect the fibre-matrix
debonding strength. However, the rapture of the carbon fibre tows uncovered in
the polymer matrix is the dominant failure mode.
Keywords: wind turbine, blade icing, resistive heating de-icing, resistive heating
ant-icing, carbon fibre, GA optimisation, fibre-matrix de-bonding strength.
Keywords
wind turbine, blade icing, resistive heating de-icing, resistive heating
ant-icing, carbon fibre, GA optimisation, fibre-matrix de-bonding strength
Related Book
Other papers in this volume
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