Flammable gases in the Oil & Gas industry: white paper compares detection technologies
26 June 2015
Unlike other hazardous environments, the Oil & Gas industry presents unique conditions which can minimise the effectiveness of conventional pellistor-based detection of flammable hydrocarbons. Now, a new white paper published by gas-detection specialist Crowcon compares the accuracy and performance of Pellistor-based detection to that of infrared technology.
Whilst pellistors are reliable and effective in most hazardous environments, they can be inhibited by compounds which are common throughout the Oil & Gas industry. The white paper analyses the performance and effectiveness of pellistors against non-dispersing infrared (NDIR) technology for the detection of flammable hydrocarbons in environments which contain silicone as well as lead-, sulphur-, or phosphate-based compounds.
The paper outlines the crucial differences in the operation of the Wheatstone bridge pellistors and infrared-based IR technology and explains how pellistors can be compromised by ‘sooting’ or by reduced levels of oxygen in confined work spaces.
In addition to the technical discussion about these different detection methods, the paper compares the cost of the initial acquisition and deployment and the long-term maintenance costs of each type of detector.
“Sharing our knowledge on the strengths and weaknesses of each detection method, the impact of other gases on detection performance and the cost implications helps safety managers make an informed decision on which technology is best-suited to each site,” explains the author, Simon Boulter, training manager at Crowcon Detection Instruments Ltd.
Click here to download the white paper: Sensor Selection – getting it right for flammable gases
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