Thermal tips for ice hot-point drilling: Experiments and preliminary thermal modeling

Volume: 160, Pages: 97 - 109
Published: Apr 1, 2019
Abstract
Electrically heated hot points are widely used for drilling in glaciers and ice sheets. To study the effect of input power, axial load, ice temperature, shape, and material of the thermal tip on the hot-point rate of penetration (ROP), a 0.8-m-long drill with 18 changeable thermal tips was designed. The ROP increased with input power for all the thermal tips. Seven tip shapes (cylinder, cosine, ogive, sphere, catenary, parabola, and cone) were...
Paper Details
Title
Thermal tips for ice hot-point drilling: Experiments and preliminary thermal modeling
Published Date
Apr 1, 2019
Volume
160
Pages
97 - 109
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