Detection of a simulated gas leak in a wind tunnel
| dc.contributor.author | Hodgkinson, Jane | - |
| dc.contributor.author | Shan, Q. | - |
| dc.contributor.author | Pride, Russ D. | - |
| dc.date.accessioned | 2012-12-10T23:00:42Z | |
| dc.date.available | 2012-12-10T23:00:42Z | |
| dc.date.issued | 2006-01-01T00:00:00Z | - |
| dc.description.abstract | This paper brings together considerations of gas leak behaviour and leak detector design and use, with a view to improving the detection of low-pressure natural gas leaks. An atmospheric boundary layer wind tunnel has been used to study ground-based releases of methane at full scale over distances of up to 3 m, under controlled conditions. These scales are relevant to the detection of natural gas leaks from mains and services using hand-portable gas detectors. The mean spatial distribution of the leaking gas plume was determined and used to test and fit a Gaussian dispersion model. This was used for subsequent analysis with respect to the ability of gas leak detectors to confirm and locate a leak. For ground-based leaks, gas concentrations drop rapidly with height such that instruments should ideally sample the air from within 100 mm of ground level. The rapid dilution of gas with distance from the source means that instruments with lower limits of detection, ideally of a few parts per million, have much improved ability to detect a leak from greater distances downwind. Finally, observations showed the variable temporal nature of the gas and the potential for confusion when sampling gas at a single point in time and space. | en_UK |
| dc.identifier.citation | J. Hodgkinson, Q. Shan and R.D. Pride, Detection of a simulated gas leak in a wind tunnel, Measurement Science and Technology, Volume 17, Number 6, Pages 1586–1593. | |
| dc.identifier.issn | 0957-0233 | - |
| dc.identifier.uri | http://dx.doi.org/10.1088/0957-0233/17/6/041 | - |
| dc.identifier.uri | http://dspace.lib.cranfield.ac.uk/handle/1826/1197 | |
| dc.language.iso | en_UK | - |
| dc.publisher | Iop Publishing Ltd | en_UK |
| dc.rights | This is an author-created, un-copyedited version of an article accepted for publication in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/0957-0233/17/6/041 | |
| dc.title | Detection of a simulated gas leak in a wind tunnel | en_UK |
| dc.type | Article | - |