| DOI: | 10.2172/1123881
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| 报告题名: | Development of a 1 x N Fiber Optic Sensor Array for Carbon Sequestration Site Monitoring |
| 作者: | Repasky, Kevin
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| 出版年: | 2014
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| 发表日期: | 2014-02-01
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| 总页数: | 129
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| 国家: | 美国
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| 语种: | 英语
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| 中文主题词: | 碳
; 吸收
; 吸附作用
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| 主题词: | CARBON
; ABSORPTION
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| 英文摘要: | A fiber sensor array for sub-surface CO2 concentrations measurements was developed for monitoring geologic carbon sequestration sites. The fiber sensor array uses a single temperature tunable distributed feedback (DFB) laser operating with a nominal wavelength of 2.004 Îźm. Light from this DFB laser is direct to one of the 4 probes via an in-line 1 x 4 fiber optic switch. Each of the 4 probes are buried and allow the sub-surface CO2 to enter the probe through Millipore filters that allow the soil gas to enter the probe but keeps out the soil and water. Light from the DFB laser interacts with the CO2 before it is directed back through the in-line fiber optic switch. The DFB laser is tuned across two CO2} absorption features where a transmission measurement is made allowing the CO2 concentration to be retrieved. The fiber optic switch then directs the light to the next probe where this process is repeated allowing sub-surface CO2 concentration measurements at each of the probes to be made as a function of time. The fiber sensor array was deployed for fifty-eight days beginning June 19, 2012 at the Zero Emission Research Technology (ZERT) field site where sub-surface CO2 concentrations were monitored. Background measurements indicate the fiber sensor array can monitor background levels as low as 1,000 parts per million (ppm). A thirty four day sub-surface release of 0.15 tones CO2/day began on July 10, 2012. The elevated subsurface CO2 concentration was easily detected by each of the four probes with values ranging to over 60,000 ppm, a factor of greater than 6 higher than background measurements. The fiber sensor array was also deploy at the Big Sky Carbon Sequestration Partnership (BSCSP) site in north-central Montana between July 9th and August 7th, 2013 where background measurements were made in a remote sequestration site with minimal infrastructure. The project provided opportunities for two graduate students to participate in research directly related to geologic carbon sequestration. Furthermore, commercialization of the technology developed is being pursued with five different companies via the Department of energy SBIR/STTR program |
| URL: | http://www.osti.gov/scitech/servlets/purl/1123881
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41621
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1123881.pdf（11745KB） | 研究报告 | -- | 开放获取 | | View
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作者单位: | Montana State Univ., Bozeman, MT (United States)
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| Recommended Citation: | |
Repasky, Kevin. Development of a 1 x N Fiber Optic Sensor Array for Carbon Sequestration Site Monitoring. 2014-01-01.
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