...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Oceanographic Literature Review >Hydrothermal activity
【24h】

Hydrothermal activity

机译：水热活动

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The overall heat transfer through an active hydrothermal sul-fide edifice, in particular the North Tower of Grotto, has been estimated at 80MW or greater based on the following in situ measurements and assumptions: (1) The heat transfer by diffuse flow is estimated at 33-380MW based on extrapolating the acoustically mapped area to all sides of the North Tower ("visible" area=30m~2; extrapolated area=100m~2) and using the range of available spot measurements of temperature (6-23℃) and vertical velocity (0.07-0.28m/s). The lower number (33MW) is more likely, but there is insufficient knowledge of the temporal and spatial variability of diffuse flow to be certain. (2) The heat transfer by focused flow is estimated at 30-70MW based on summing the estimated individual rates of heat transfer for 4 out of 7 documented black smokers and flanges. (3) Conductive heat transfer out of the mound is unknown, but is likely to be much less than the advective heat transfer. Additionally, the plume transport of heat is estimated at 20-40MW based on the direct measurement of temperature within the plume (at 5-25m above the top of the edifice). Despite uncertainties, the lower estimate of plume versus smoker heat transfer suggests that heat transfer is dominantly by diffuse flow. Furthermore, not all plumes from individual smokers may merge even for so small an area as the North Tower of Grotto.
机译：根据以下现场测量和假设，通过活跃的热液硫化硫大厦（特别是Grotto北塔）的总体热传递估计为80MW或更高：（1）扩散流的热传递估计为33-380MW，基于将声波测图区域外推到北塔的所有侧面（“可见”区域= 30m〜2；外推区域= 100m〜2）并使用可用的现场温度测量范围（6-23℃）和垂直速度（0.07-0.28m / s）。较低的数字（33MW）更有可能，但是对于扩散流的时间和空间变异性的知识尚不足以确定。 （2）根据7个记录在案的黑烟民和法兰中的4个的估计的单个传热率之和，估计聚焦流传热为30-70MW。 （3）从土丘传热的传热是未知的，但可能比对流传热小得多。此外，根据直接测量烟羽内温度（在建筑物顶部上方5-25m），估计烟羽的热传递量为20-40MW。尽管存在不确定性，但羽流与吸烟者传热之间的较低估计表明，传热主要由扩散流引起。此外，即使像Grotto North Tower这样小的区域，也并非所有吸烟者的烟羽都可能融合。

著录项

  • 来源
    《Oceanographic Literature Review》 |2016年第2期|308-309|共2页
  • 作者

  • 作者单位
  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号