Deicing with Nd:YAG and CO2 lasers

Lijun Qi; Xiao Zhu; Changhong Zhu; Fei Guo; Guangzhi Zhu; Shanqiang Gu

doi:10.1117/1.3509366

1 November 2010 Deicing with Nd:YAG and CO₂ lasers

Lijun Qi, Xiao Zhu, Changhong Zhu, Fei Guo, Guangzhi Zhu, Shanqiang Gu

Author Affiliations +

Optical Engineering, Vol. 49, Issue 11, 114301 (November 2010). https://doi.org/10.1117/1.3509366

Abstract

A model of deicing with Nd:YAG and CO₂lasers for simulation using ANSYS software is presented. Experiments with a 300-W, 1-ms, 60-Hz Nd:YAG laser and a 500- to 2000-W cw CO₂ laser are reported. The Nd:YAG laser is considered as a volume thermal source, and the CO₂ laser as a plane thermal source. The model and the simulation results can describe both Nd:YAG and CO₂ laser deicing well. The results of the simulation and experiments suggest that the melting rates for the two lasers are almost equal at the same laser power density. So are the melting efficiencies. The hard and transparent ice irradiated by the Nd:YAG laser becomes opaque and loose, because the thermal stress is distributed in the body of the ice, while the ice irradiated by the CO₂ laser is still transparent and hard, because thermal stress hardly occurs. So the laser with characteristics of high output power and large ice absorbing length can be selected for the power line laser deicing system, and Nd:YAG laser is more appropriate for power-line deicing than CO₂laser.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Lijun Qi, Xiao Zhu, Changhong Zhu, Fei Guo, Guangzhi Zhu, and Shanqiang Gu "Deicing with Nd:YAG and CO₂ lasers," Optical Engineering 49(11), 114301 (1 November 2010). https://doi.org/10.1117/1.3509366

Published: 1 November 2010

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