شماره ركورد كنفرانس :
5041
عنوان مقاله :
Evaluation of Failures in Sleeve Rubber Product using a Modified Rapid Gas Decompression (RGD) Performance Testing
Author/Authors :
H. Roosta Chemical Engineering Department - Faculty of Engineering - Ferdowsi University of Mashhad, Iran , M. Najipour Chemical Engineering Department - Faculty of Engineering - Ferdowsi University of Mashhad, Iran , M. M. Pourali Research and Technology affairs of Khorasan-Razavi gas company, Mashhad, Iran , A. Dashti Chemical Engineering Department - Faculty of Engineering - Ferdowsi University of Mashhad, Iran
كليدواژه :
Rapid gas decompression (RGD) , failures , sleeve , rubber product , NBR
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
To investigate the damages of rubber products under gas exposure in pressure reducing stations especially the gas city stations (CGSs), a performance testing was designed and implemented based on a well-known rapid gas decompression (RGD) standard test for the first time in Iran. To meet operational conditions of CGS, the RGD test was modified to temperature and pressure about 800C and 80 bar, respectively. Specimen samples were prepared from final elastomeric sleeve products used in axial flow valve (AFV) regulator of CGSs in the Ring-type geometry. Results of performance test confirmed the observed failures such as blister, bubble, crack and rupture of sleeve rubber products in real operations. Based on the obtained results, the severity of damages was increased as the thickness of samples increased due to larger cross section of gas contact area. The proposed performance RGD test can be definitely developed for other seal rubber products in gas transmission and distribution field.
