搜全网
搜本展位
仪器信息网 > 凯戈纳斯 >解决方案 > 对沙中所含天然气水合物热导率的测量及模型的建立
仪信通铜牌会员 第 14 年
仪信通诚信认证
仪器信息网认证,请放心拨打
400-860-5168转0758
名 称: 凯戈纳斯仪器商贸(上海)有限公司
认 证: 工商信息已核实
信用积分:3585
厂商反馈速度 6-8 小时
凯戈纳斯手机版
解决方案
对沙中所含天然气水合物热导率的测量及模型的建立
应用领域:
发布时间:
2005-03-17
检测样品:
--
检测项目:
--
浏览次数:
1039
下载次数:
56 次
方案优势
Effective thermal conductivity (ETC) of both tetrahydrofuran (THF) and methane hydrate-bearing sandy porous media was measured by the Hot Disk Thermal Constant Analyser. Thermal conductivity of methane hydrate is 0.575 W m−1 K−1 at 0°C and 6.6 MPa (methane gas pressure), which is close to THF hydrate''s 0.51 W m−1 K−1 at 0°C and 0.1 MPa (atmosphere pressure). However, the measured 1 W m−1 K−1 ETC of methane hydrate-bearing sand is significantly lower than that of THF hydrate-bearing sand at ∼2 W m−1 K−1. This is because the methane hydrate formed with a sodium dodecyl sulfate (SDS) solution in sand at our laboratory has a “wall creeping” growth characteristic and consequently a large part of the pores were filled with methane free gas. ETCs of sand containing gas hydrates were also calculated using a renormalization method. The process involves sample partitioning, labeling, initial value assignments, and renormalization calculations. A Monte Carlo analysis was applied to sample laboratory-scale gas hydrate-bearing sand assemblies. We found that the renormalization modeling results agreed well with measured ETCs when each photo of a 1.3 mm × 1.3 mm subsample was divided into 16 or more blocks.
实验设备
参考报价:
面议
型号:
TPS 2500S
品牌:
Hot Disk
产地:
瑞典
关注度:
11119
完整度:
参考报价:
面议
型号:
TPS 1500
品牌:
Hot Disk
产地:
瑞典
关注度:
8825
完整度:
其它方案
  • 介绍了一种新型绝热量热计———加速量热仪。该仪器可用于危险放热反应试验,记录反应过程中温度、压力的变化,再利用软件分析出反应物质的初始反应温度、到达最大反应速
    发布时间:2017-10-13  浏览量:16 次 下载次数:3
  • 本文介绍了HotDisk瞬态平面热源法测试原理,以及采用HotDisk瞬态平面热源法测试建筑材在不同含水率条件下导热系数的变化趋势。
    发布时间:2017-10-10  浏览量:20 次 下载次数:4
  • 近场探测原理,悬臂式光纤探针等.介绍光纤探针的制作方法,科学界把探针与样品之间的距离小于几十纳米的范围称为近场,而大于这个距离的范围叫做远场。显然,STM、AFM
    发布时间:2017-09-28  浏览量:24 次 下载次数:3
凯戈纳斯官方展位由仪器信息网设计制作,工商信息已核实。
展位地址:http://www.instrument.com.cn/netshow/SH100758/