Safety and performance are important factors in the design and operation of chemical plants. This paper describes the formulation of a mixed integer nonlinear programming model for the optimization of plant layout with safety considerations. The model considers a quantitative risk analysis to take safety into account, and a bowtie analysis is used to identify possible catastrophic outcomes. The...

After the Paris Agreement was signed in 2015, many countries worldwide focused on hydrogen economy, aiming for eco-friendly and renewable energy by moving away from existing carbon which has been primary source of global warming. Hydrogen is most common element Earth. As a light substance, can diffuse quickly; however, it also small risk explosion. Representative explosion accidents have includ...

Abstract. We present a quantitative risk analysis (QRA) case study from the Kā Roimata o Hine Hukatere / Franz Josef Glacier and Te Moeka Tuawe Fox valleys, on west coast of South Island, Aotearoa New Zealand. The glacier valleys are important tourist destinations that subject to landslide hazards. Both contain actively retreating glaciers; experience high rainfall; proximal Alpine Fault, which...

Quantitative Risk Assessment (QRA) of Oil & Gas installations implies modeling accidents’ evolution. Computational Fluid Dynamics (CFD) is one way to do this, and off-the-shelf tools are available, such as FLACS developed by Gexcon US KFX DNV-GL. A recent model based on ANSYS Fluent, named SBAM (Source Box Accident Model) was proposed the SEADOG lab at Politecnico di Torino. In this work, w...

When calculating risks from explosions, accurate prediction of the effects of congestion on overpressure has a significant impact. In addition, the protection offered by buildings is also an important factor. The TNO Multi Energy (ME) Method, integrated with source term discharge and dispersion models to assess the extent of flammable clouds, is often used for predicting overpressures (Van Den ...

The performance of the Human Reliability Analysis (HRA) and integration of its outcomes into QRA schemes remains a quite difficult and complex task to perform. Even worse is the assessment of Organisational Reliability Assessment (ORA). The reasons of this difficulty mainly lay on the absence of a generically accepted paradigm that enables engineers to include systematically H&OF (Human & Organ...

The application of Moderate Resolution Imaging Spectroradiometer-Aerosol Optical Depth (MODIS-AOD) for Air Quality (AQ) assessment has contributed significantly by making use a spatiotemporal relationship between ground-level particulate matter and aerosol optical density at both city state levels. Traditional ground-based site-specific monitoring method found profound gap in their spatial cove...

Hydrogen is the most abundant element on earth, being a low polluting and high efficiency fuel that can be used for various applications, such as power generation, heating or transportation. As reaction to climate change, authorities are working determining promising applications hydrogen, one of best examples crossborder initiative IPCEI (Important Project Common European Interest) Hydrogen, u...

This invited talk surveys the results obtained so far in designing identity-based encryption (IBE) schemes based on the quadratic residuosity assumption (QRA). We begin by describing the first such scheme due to Cocks, and then we advance to the novel idea of Boneh, Gentry and Hamburg. Major improvements of the Boneh-Gentry-Hamburg scheme are then recalled. The recently revealed algebraic torus...