RR602 - Assessment of gas detection strategies for offshore HVAC ducts based on CFD modelling

The aim of this study has been to undertake CFD modelling to provide a basis for advice to inspectors and the industry on the effectiveness of flammable gas detection strategies for offshore HVAC ducts. CFD simulations of a high and low pressure gas release have been undertaken for idealised representations of an offshore platform, as well as a high pressure release for a more realistic geometry based on the Brae Alpha platform. In parallel with this modelling work a literature review has been carried out to build on a scoping study by Walsh et al (2005).

This report and the work it describes were funded by the Health and Safety Executive (HSE). Its contents, including any opinions and/or conclusions expressed, are those of the author alone and do not necessarily reflect HSE policy.

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Updated 2021-04-22