Abstract The expansion of education in the later nineteenth century led to concerns that ‘educational overpressure’ was damaging health children. Overpressure an ill-defined condition which presented nosological problems and diagnostic difficulties. These were further clouded by political sociocultural issues included malnutrition, learning disabilities postulated hereditable physical mental de...

Accidental explosions are a plausible danger to the chemical process industries. In event of gas explosion, any obstacles placed within path flame generate turbulence, which accelerates transient and raises explosion overpressure, posing safety hazard. This paper presents numerical studies using an in-house computational fluid dynamics (CFD) model for lean premixed hydrogen/air propagations wit...

Foul water stacks are a separate chapter in the design of sanitary installations, especially high-rise buildings. The problematic part is complicated hydraulic conditions stacks, which lead to high values negative pressure and overpressure. Exceeding maximum leads extraction from traps, causes spread annoying smells interior. Another jumps caused by sudden change velocity stack, above direction...

Estimating the costs of blasting operations is an important parameter in open-pit mining. Blasting and rock fragmentation depend on two groups of variables. The first group consists of mass properties, which are uncontrollable, and the second one is the drill-and-blast design parameters, which can be controlled and optimized. The design parameters include burden, spacing, hole length, hole diam...

The paper presents a global Finite Element Method model developed to understand and quantify the complex phenomena of energetic transfer and overpressure taking place within a transformer vessel during and after a short-circuit. The goal of the model is to design an efficient system able to protect Power Transformers against explosion and resulting oil fire. The model presentation and compariso...