Interview with Dr. Arief Dahoe – Dust Explosions

On May 16, 2017, Delft Solids Solutions will host a Dustiness Seminar in partnership with TNO, Hosokawa Micron, DSM / Delft University of Technology, TOP B.V., Orffa, and Buro Blauw. This event will focus on dust-related challenges, techniques, developments, and prevention methods. Safety standards such as DIN 55992, EN 15051, and ATEX regulations will be central to the discussions. The seminar will offer valuable insights into dust explosion risks and effective mitigation strategies.

We are pleased to introduce Dr. Arief Dahoe, one of the featured speakers. His lecture, “Dust Explosions: Phenomenology, Dynamics, and Mitigation,” will provide a deeper understanding of dust explosion dynamics. In this interview, Dr. Dahoe discusses how industries can address these risks.

Certainly. I have a strong academic foundation in chemical engineering, specializing in particle technology and fluid dynamics. I earned my MSc in Chemical Engineering and later completed a PhD in Explosion Dynamics at Delft University of Technology. My research interests have always been rooted in fire and explosion hazards, particularly with gases and dust. Over the years, I’ve had the opportunity to collaborate with various institutions, including Cambridge University and Eindhoven University of Technology, and I’ve worked within military organizations and industries focused on explosion safety.

My passion for this field grew from my involvement in projects related to explosion dynamics, hydrogen safety, and mitigation technologies. I’ve dedicated much of my career to understanding and preventing catastrophic explosions, particularly dust explosions, which can pose serious risks in industries handling fine powders. This focus has shaped my work and the development of safety strategies that protect both workers and industrial facilities.

Recognizing that virtually any fine, dry material can pose a dust explosion risk is the first step. Many materials considered harmless on their own become dangerous under certain conditions. The key factors are particle size and how easily they disperse in the air.

The most effective way to prevent dust explosions is by eliminating ignition sources. Grounding equipment prevents static buildup, while ensuring machinery does not generate sparks. Explosion-proof electrical components are also necessary. Industries like food processing face higher risks due to the flammable nature of organic powders, such as flour or corn starch.

Controlling air quality in processing areas is another critical measure. Proper ventilation and dust collection systems help minimize dust concentration in the air. Explosion suppression systems, like sprinklers or inert gas injection, can reduce the effects of an explosion. These systems interrupt the reaction, lower oxygen levels, or cool the explosion quickly.

A crucial point is prioritizing safety from the beginning. By using the right materials, maintaining equipment, and following safety protocols, we can significantly reduce dust explosion risks.

Yes, ATEX (ATmosphères EXplosibles) is a set of EU directives designed to ensure the safety of workers in environments where there’s a risk of explosion. There are two primary parts: one applies to equipment manufacturers, and the other to employers. These regulations govern how equipment is designed and used in explosive atmospheres. They ensure that all equipment used in such environments is built to prevent sparking or overheating, which could ignite dust clouds.

Since 2003, ATEX has been a legal requirement in the EU. It’s designed to protect workers from explosion risks in industries like chemicals, food, and pharmaceuticals, where powders are handled or processed. ATEX compliance ensures that companies adhere to strict safety standards, including the installation of explosion-proof machinery, proper ventilation, and the use of dust collection systems.

In my lecture, I will discuss how complying with these standards, along with other regulations like DIN and ASTM, helps companies mitigate the risks of dust explosions. By maintaining safety standards, we not only protect workers but also ensure the operational stability of industries where dust hazards are present.

This seminar is perfect for anyone working in environments where powders are handled or processed. Specifically, professionals with a background in chemical, mechanical, or civil engineering will find it valuable. It’s also great for technicians and operators in manufacturing plants who work with powders and need to understand the risks involved.

We also welcome researchers and safety officers looking for a deeper understanding of dust explosions and safety standards. The seminar includes plenty of practical examples from daily operations, so even those with less technical knowledge will benefit from the real-world insights shared during the sessions.

I hope attendees leave with a better understanding of dust explosions and how they can prevent them. The goal is to help people recognize the hazards and understand the science behind it. After the seminar, I want them to be equipped with the knowledge to implement effective safety measures in their own workplaces.

Above all, I want them to leave with a clear sense of how important it is to prioritize safety in environments where powders are handled. By following the right protocols and using the correct equipment, we can prevent accidents and ensure safer working conditions.

It’s been my pleasure. I’m excited to share this important knowledge and look forward to engaging with everyone there.