Topic
Overpressure
About: Overpressure is a research topic. Over the lifetime, 3236 publications have been published within this topic receiving 34648 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, a series of experiments were conducted in an enclosed pipeline with different scenarios of liquid types and liquid height, and the criterion for explosion pattern classification, flammability limit, propagation of the maximum explosion pressure and the energy distribution of the explosion wave were studied to provide basic data guidance for explosion accident prevention.
21 citations
TL;DR: In this article, a large-scale horizontal tube was used to evaluate the safety of an ammonia-oxygen explosion in a large scale horizontal tube, where pressure transducers and self-developed temperature sensors were applied to record the overpressure and instantaneous flame temperature during the DDT process.
21 citations
TL;DR: In this paper, different models of gas accumulation are established to explain the relationship between overpressure distribution and gas pool formation, and the influence of overpressure on the gas pools. But the importance of these two factors varies in different basins and in different stages of the same basin.
Abstract: Abnormal overpressure occurs in the foreland basins of Kuqa, South Junggar and West Sichuan in China. The pressure coefficients are high. Overpressure exists in wide areas and various strata. The layers of overpressure have a very close relationship with lithology, and the area of overpressure is controlled by the piedmont depression. The mechanisms of overpressure formation in the Kuqa and South Junggar Depression include disequilibrium compaction and tectonic compression; the importance of these two factors varies in different basins and in different stages of the same basin. Different models of gas accumulation are established to explain the relationship between overpressure distribution and gas pool formation, and the influence of overpressure on the gas pools. These models include: (i) the violent tectonic movement leads to the pool formation in overpressure belt (Kela- 2 gas field in Kuqa); (ii) the pressure releases at shallow part and the gas pool forms in late time (Hutubi gas field in southern Junggar Basin); (iii) through the pressure transfer the gas migrates and accumulates (Xinchang gas field in Western Sichuan Basin).
21 citations
TL;DR: In this paper, the authors investigated the effects of cylinders placed parallel to the venting direction on vented hydrogen-air deflagrations and the structural response of the vessel wall to an explosion.
21 citations
TL;DR: In this article, the authors measured the pressure behind a shock wave and its influence on spontaneous ignition during high-pressure hydrogen release through a tube are measured by pressure transducers and light sensors, and found that the minimum value of pressure behind the shock wave (Pshock) required for spontaneous ignition decreases with the increase in axial distance to the diaphragm.
21 citations