Modeling of Sewage Plant Gas Emission and HVAC using CFD

le 20 mai 2016.

sesion04 tarela07 In this sewage plant under consideration, the wastewater is moved vertically using eight Archimedes screw pumps. During the process of moving the wastewater upward, there is an emission of H₂S from the surfaces of the Archimedes pumps. Traces of H₂S have been detected inside of the building that houses the pump engines.

The present paper evaluates a modification in the HVAC system of the building to mitigate the presence of H₂S inside the building.

P. A. Tarela¹ and F. E. Camelli²

1. CCyA Ingeniería, Buenos Aires, Argentina.
2. Laboratory for Computational Fluid Dynamics, Department of Physics and Astronomy, George Mason University, Fairfax, Virginia, USA.

Modelling pollutants in real time: Challenges and key components

le 10 juin 2020.

In recent years, the community has taken an active role regarding situations or factors that affect its air quality and that of its daily life, especially in those areas close to industrial sites.

Because residential areas are expanding, until they reach them, the need arises in the industry for agile and dynamic tools to assess this type of risk early. In this context, modeling of atmospheric pollutants in real time emerges as a tool with the ability to quantify the concentration levels of pollutants in the receivers based on real-time meteorological records.

A. González, R. Guerra, V. Zorich

Envirometrika, Santiago (Chile)

New Beta version 20.1 of GRAL model

le 3 octobre 2019.

The Graz Lagrangian (GRAL) system is a closed-source Lagrangian particle model with a free Graphic User Interface (GUI) available in both Linux and Windows. This model has a special module focused on odour dispersion modelling and now, a new beta release has been distributed in the mail list of users, with an extensive list of changes.

People interested in testing and trying this new beta, should subscribe to the official website of the project here. The current version 19.1 has been updated to the version 20.1. According to the release notes, this is the third beta of this version. There is no information on when the final version will be released.