کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8906343 | 1634409 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Shallow hot-water ice drill: Estimation of drilling parameters and testing
ترجمه فارسی عنوان
مته یخچال آب داغ: ارزیابی پارامترهای حفاری و آزمایش
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کلمات کلیدی
حفاری آب داغ، واشر فشار بالا، نازل، ذوب یخ،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
Shallow hot-water systems are well-known ice-drilling devices used to create holes for temperature measurements and monitoring of glacier dynamics, basal sliding, and englacial water-pressure. A shallow hot-water ice drill system designed at Jilin University is based on a commercial high-pressure washer, Kärcher HDS 6/14C, that can deliver water at a temperature in the range of 80-155°â¯C, a flow of 4-10â¯L/min and a pressure as high as 14â¯MPa. The system also includes a mast with a sheave on the top and a reel with a 100-m long rubber hose; a 2-m long, 60-mm diameter drill stem; a control and measuring system; sleds; a submersible pump; a return hose; a water tank with an affiliate heating unit; and a small 2-kW generator. Theoretical estimations were performed to predict the rate of penetration and mean diameter of the melted borehole. Experiments with a shallow hot-water drill were carried out in an ice drill testing facility to determine the relationship between the rate of penetration/borehole diameter and the diameter and type of nozzle, hot water temperature, and flowrate. Under a hot water flowrate of 10â¯L/min with a temperature of 60°â¯C, the 1.8-mm and 2-mm nozzles created 98-114-mm diameter boreholes at a penetration rate of 34-37â¯m/h, while a 2.5-mm nozzle produced a 146-156-mm borehole at rate of 26â¯m/h. The deviation between the experimental data and theoretical estimations did not exceed 7%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cold Regions Science and Technology - Volume 155, November 2018, Pages 11-19
Journal: Cold Regions Science and Technology - Volume 155, November 2018, Pages 11-19
نویسندگان
Pavel Talalay, Gang Liu, Rusheng Wang, Xiaopeng Fan, Jialin Hong, Da Gong, Bowen Liu, An Liu, Sysoev Mihail,