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Power consumption of a Philberth thermal probe in ice sheet exploration
Cold Regions Science and Technology ( IF 4.1 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.coldregions.2020.103114
Yazhou Li , Yang Yang , Xiaopeng Fan , Xiao Li , Pavel G. Talalay

Abstract As a useful equipment for ice sheet exploration, many Philberth thermal probe designs have been proposed for use on Earth or extraterrestrial planets. The classic method for calculating the power consumption of a Philberth thermal probe can be modified by assuming a reasonable thermal head efficiency. The influence of various parameters on the critical refreezing length and the power consumption of the thermal head and lateral heater are evaluated using the improved method. The power consumption of the thermal probe increases as the diameter, length, and penetration rate increase and decreases as the ice temperature increases. The efficiency of the thermal head has no influence on the total power consumption of the thermal probe. There exists an optimal diameter and efficiency of thermal head. While drilling an ice sheet, the power consumption of the lateral heater reduces gradually, and thus, moving the excess power of the lateral heater to the thermal head is a good method of increasing the penetration rate. Moreover, it is also suggested that the maximum working voltage of the thermal head should be as high as possible, and the lateral body of the thermal probe should be heated in sections.

中文翻译:

Philberth 热探头在冰盖探测中的功耗

摘要 作为冰盖探测的有用设备,许多 Philberth 热探测器设计已被提议用于地球或地外行星。可以通过假设合理的热头效率来修改计算 Philberth 热探头功耗的经典方法。使用改进方法评估了各种参数对临界再冷冻长度和热敏头和侧向加热器功耗的影响。热探头的功耗随着直径、长度和穿透率的增加而增加,随着冰温的增加而降低。热敏头的效率对热探头的总功耗没有影响。存在一个最佳的热敏头直径和效率。在钻冰盖时,侧向加热器的功耗逐渐降低,因此,将侧向加热器的多余功率转移到热敏头是提高渗透率的好方法。此外,还建议热敏头的最大工作电压应尽可能高,热探头的侧身应分段加热。
更新日期:2020-09-01
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