Turbice model: Difference between revisions
Created page with "File:Turbice.jpg|thumb|500x500px|TURBICE simulation results for ice shapes in different air temperatures. The modeled temperatures are a) -27,8ºC b) -19,8ºC c) -13,9ºC d)..." |
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In addition, the model considers '''the surface roughness of ice''', which affects the heat transfer from the blade. Ice roughness equation uses meteorological parameters liquid water content, air temperature, free stream velocity and median volume of the droplet. TURBICE accounts for wet icing caused by blade heating and density of accreted ice as well. TURBICE has been tested both in laboratory and in practice. The modelled icing was close to the real results. However, close to 0 degrees Celsius, TURBICE is possibly less accurate. | In addition, the model considers '''the surface roughness of ice''', which affects the heat transfer from the blade. Ice roughness equation uses meteorological parameters liquid water content, air temperature, free stream velocity and median volume of the droplet. TURBICE accounts for wet icing caused by blade heating and density of accreted ice as well. TURBICE has been tested both in laboratory and in practice. The modelled icing was close to the real results. However, close to 0 degrees Celsius, TURBICE is possibly less accurate. | ||
<ref>Makkonen, L. (2001). Modelling and prevention of ice accretion on wind turbines. Wind Engineering, 25(1), 3–21.</ref> | <ref>Makkonen, L. (2001). Modelling and prevention of ice accretion on wind turbines. Wind Engineering, 25(1), 3–21.</ref> <ref>Thorsson, P. et al. (2015) Modelling atmospheric icing: A comparison between icing calculated with measured meteorological data and NWP data. Cold regions science and technology. [Online] 119124–131.</ref> | ||
Latest revision as of 14:46, 21 December 2021
The TURBICE model is a commonly used icing model for icing on wind turbine blades developed by Makkonen et al.
Both glaze and rime can be modeled, and the model can include blades with anti-icing systems, like heated blades. The model can show the shape and size of accreted ice and includes the effect of liquid water on the blades. TURBICE model has equations to account for the air flow and droplet trajectories.
The figure shows how TURBICE model can be used to estimate the shape of the ice. Blue line on the graph is the ice formation, and the black line is the turbine blade.
In addition, the model considers the surface roughness of ice, which affects the heat transfer from the blade. Ice roughness equation uses meteorological parameters liquid water content, air temperature, free stream velocity and median volume of the droplet. TURBICE accounts for wet icing caused by blade heating and density of accreted ice as well. TURBICE has been tested both in laboratory and in practice. The modelled icing was close to the real results. However, close to 0 degrees Celsius, TURBICE is possibly less accurate.
- ↑ Makkonen, L. (1981). Estimating Intensity of Atmospheric Ice Accretion on Stationary Structures. Journal of Applied Meteorology (1962), 20(5), 595–600.
- ↑ Makkonen, L. (2001). Modelling and prevention of ice accretion on wind turbines. Wind Engineering, 25(1), 3–21.
- ↑ Thorsson, P. et al. (2015) Modelling atmospheric icing: A comparison between icing calculated with measured meteorological data and NWP data. Cold regions science and technology. [Online] 119124–131.