Abstract
Partially funded by the Research Council of Norway, project no. 195153 and partially by the consortium of the project ColdTech - Sustainable Cold Climate Technology
Highlights
According to ISO 12494 Standard, ice accretion can be defined as, 'Any process of ice buildup and snow accretion on the surface of the object exposed to atmosphere'[1]
[3] Section B.3.1 describes the major components in the of an icing load measurement apparatus, the physical phenomenon used in the measurement techniques was not specified in the ISO 12494:2001 [4]
The freely rotating IceMonitor by Combitech and IceMeter by Czech Republic [5, 6] are relatively closer to the ISO standard apparatus
Summary
According to ISO 12494 Standard, ice accretion can be defined as, 'Any process of ice buildup and snow accretion on the surface of the object exposed to atmosphere'[1]. Increase in the rpm is increasing the tangential component of flow velocity, which leads to a change in the droplet behaviour and water run back, as Figure 6 shows a development of ice hump near the fin root section This CFD based numerical study laid the foundation to understand and analyze the atmospheric ice accretion profiles on three different rotating geometric cross sections having fins. The results from this study indicated that the ice accretion on circular cross section ( diameter = 162 mm) rotating at an rpm of 6 with regularly attached four fins of dimension 94mm was relatively more uniform at different simulated geometric and operating parameters, than its two competitors, which were hexagon (height = 162mm ) with six fins and square (side length = 162mm) with four fins. To electronically drive this step motor SMCI47-S drive controller was selected
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