| Titre : |
A general risk Assessment of flammable gas detectors |
| Type de document : |
texte imprimé |
| Auteurs : |
Mustapha Toutaoui, Auteur ; H. M. N. Raafat, Directeur de thèse |
| Editeur : |
Birmingham : University of Aston |
| Année de publication : |
1984 |
| Importance : |
98 f. |
| Présentation : |
ill. |
| Format : |
27 cm. |
| Note générale : |
Mémoire de Magister : Occupational Health and Safety : Birmingham, University of Aston : 1984
Annexe f. 99 - 115 . Bibliogr. f. 116 - 120 |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Occupational -- health safety Flammable gas Gas detection system ANOVA table |
| Index. décimale : |
M006084 |
| Résumé : |
Flammable gas detectors provide the means whereby personnel concerned with health and safety activities can easily determine the presence of and evaluate the concentration of combustible gases or vapours in the workplace.
This project attempts to outline the limitations that a user should consider and recognise when using a flammable gas detector.
features such as sensitivity, reliability and intrinsic safety were studied.
Failure mode analysis and fault tree analysis techniques ware used.
The criticality estimates obtained suggested that some corrective measures were needed.
Initiators arranged in redundant configurations, use of "de-bugging" or "Burn-in" process, and regular maintenance by competent personnel, was shown to be vital for achieving the high levels of reliability associated with the safety system.
A statistical analysis of past data was undertaken and relationships among the different variables were shown.
An experimental programme was carried out, using pellister type catalytic detectors.
Examination of their susceptibility and behaviour when exposed to different temperature were carried out.
Two flammable gases were used.
These were acetone and butanol.
For both of them a decrease in the amount oxidised was obtained as temperature was increased.
Also, a study of the basic requirements for the use of flammable gas detectors was outlined. |
A general risk Assessment of flammable gas detectors [texte imprimé] / Mustapha Toutaoui, Auteur ; H. M. N. Raafat, Directeur de thèse . - Birmingham : University of Aston, 1984 . - 98 f. : ill. ; 27 cm. Mémoire de Magister : Occupational Health and Safety : Birmingham, University of Aston : 1984
Annexe f. 99 - 115 . Bibliogr. f. 116 - 120 Langues : Anglais ( eng)
| Mots-clés : |
Occupational -- health safety Flammable gas Gas detection system ANOVA table |
| Index. décimale : |
M006084 |
| Résumé : |
Flammable gas detectors provide the means whereby personnel concerned with health and safety activities can easily determine the presence of and evaluate the concentration of combustible gases or vapours in the workplace.
This project attempts to outline the limitations that a user should consider and recognise when using a flammable gas detector.
features such as sensitivity, reliability and intrinsic safety were studied.
Failure mode analysis and fault tree analysis techniques ware used.
The criticality estimates obtained suggested that some corrective measures were needed.
Initiators arranged in redundant configurations, use of "de-bugging" or "Burn-in" process, and regular maintenance by competent personnel, was shown to be vital for achieving the high levels of reliability associated with the safety system.
A statistical analysis of past data was undertaken and relationships among the different variables were shown.
An experimental programme was carried out, using pellister type catalytic detectors.
Examination of their susceptibility and behaviour when exposed to different temperature were carried out.
Two flammable gases were used.
These were acetone and butanol.
For both of them a decrease in the amount oxidised was obtained as temperature was increased.
Also, a study of the basic requirements for the use of flammable gas detectors was outlined. |
|
Ajouter le résultat dans votre panier
Visionner les documents numériques
Faire une suggestion Affiner la rechercheA general risk Assessment of flammable gas detectors (1984)
