|Document ID (ISN)||111352|
|Convention or series no.
||HSE Research Report RR630
||Ivings M.J., Clarke M.S., Gant S.E., Fletcher B., Heather A., Pocock D.J., Pritchard D.K., Santon R., Saunders C.J.
Health and Safety Executive
||Area classification for secondary releases from low pressure natural gas systems
||HSE Books, P.O. Box 1999, Sudbury, Suffolk CO10 2WA, United Kingdom, 2008. viii, 182p. Illus. 26 ref.
||Report_RR630.pdf [in English]
||This report reviews current methods of evaluating the effectiveness of the ventilation of enclosures. British Standard BS 5925 which describes a method for calculating air change rates was applied to two enclosures where the air change rate was measured experimentally. In the first of the two cases considered, the calculated air change rate was in good agreement with the measurements, whereas in the other case it under-predicted the ventilation rate. An improved model was proposed and validated against 29 experimental tests carried out in a purpose built enclosure. The experimental tests consisted of releases of simulated methane gas for a range of leak rates and ventilation rates. Findings are discussed.
||United Kingdom; air movement; gaseous effluents; mathematical models; ventilation systems
||natural gas; premises; research; gas distribution; leakage; report
||E - Books, reports, proceedings
|Country / State or Province||United Kingdom|
||Fire and explosions
Heating, ventilation and climate
|Broad subject area(s)
||Fires, explosions and major hazards