Optimizing probe structure for dual-probe seafloor heat flow meter
文献类型：期刊论文
| 作者 | Yang, XQ ; Shi, XB ; Xu, HH ; Xu, X ; Li, GB ; Guo, XW ; Luo, XH |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:5页码:1280-1288 |
| 关键词 | Dual-probe seafloor heat flow meter Structure optimization Dual-probe heat pulse (DPHP) method Pulsed Finite Line Source (PFLS) model Finite element numerical modeling |
| ISSN号 | 0001-5733 |
| 通讯作者 | yxq2081@scsio.ac.cn |
| 中文摘要 | This paper alms to optimize the probe structure for dual-probe seafloor heat flow meter. Firstly, with a constructed finite element model for seafloor pulsing dual-probe, a series of temperature-time data, which are used as the "observed" data, can be obtained by giving different probe structures and thermal properties. Then, we calculated medium thermal conductivity and its corresponding maximum relative error (RE lambda-UL) by using Pulsed Finite Line Source (PFLS) model, and optimize the probe structure in which RE lambda-UL is minimized. Finally, we optimized dual-probe structure with the now available manufacture technique of seafloor heat flow probe. Our results show that: (1) under each distinct combination of probe heat pulse strength (q), temperature measurement error (Delta T-m) and probe length (L), there must be a best probe spacing (Best_r), at that position, RE lambda-UL is least; (2) Best_r can be accordingly increased with q increasing or Delta T-m decreasing; (3) when q,Delta T-m and probe radius (a) are given! there is a significant linear positive correlation between Best_r and L; (4) when a is 1.0 mm, q is from 628.0 similar to 1100.0 J . m(-1), Delta T-m is from 0.5 mK to 1.0 mK, and L is from 20.0 mm to 42. 0 mm, Best_r ranges from 18.0 mm to 30.0 mm. In this case, the maximum relative error in medium thermal conductivity is within 5.5%, meanwhile, it reaches the maximum measurement temperature within 6 minutes, which means that the temperature measurement just needs about 7 minutes to calculate medium thermal conductivity after the beginning of pulse heating, which is about 8 minutes shorter than that of the Lister-type heat flow meter. |
| 学科主题 | Geochemistry & Geophysics |
| 收录类别 | SCI |
| 原文出处 | SCIENCE PRESS |
| WOS记录号 | WOS:000266542700017 |
| 公开日期 | 2011-07-03 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/4620]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | Yang, XQ,Shi, XB,Xu, HH,et al. Optimizing probe structure for dual-probe seafloor heat flow meter[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2009,52(5):1280-1288. |
| APA | Yang, XQ.,Shi, XB.,Xu, HH.,Xu, X.,Li, GB.,...&Luo, XH.(2009).Optimizing probe structure for dual-probe seafloor heat flow meter.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(5),1280-1288. |
| MLA | Yang, XQ,et al."Optimizing probe structure for dual-probe seafloor heat flow meter".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.5(2009):1280-1288. |
入库方式： OAI收割
来源：南海海洋研究所
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