Bark is burned in a bark boiler along with other waste wood products to produce steam that is used in the pulping process, to drive the paper machine, and for many other uses. After combustion, the flue gases from the boilers are often passed through an electrostatic precipitator that uses static electricity to gather the fly ash. An electrostatic charge is induced in the flowing particles and then the particles are collected onto the energized plates with a negative voltage through electrostatic attraction.

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Stumped by hazardous area locations? Not sure when to choose and use intrinsic safety equipment? Intrinsic safety expert David Hohenstein from Pepperl+Fuchs gives you the need-to-know basics in ebook "Intrinsic Safety in a Nutshell".

Intrinsic Safety in a Nutshell covers:

Hazardous areas

Intrinsic safety methods

Zener diode barriers

Isolated barriers

Principles of intrinsic safety

Helpful links throughout the ebook guide the reader to more in-depth content on the Pepperl+Fuchs website. Download your copy of "Intrinsic Safety in a Nutshell" today!

The past two years have been a real wakeup call for the industrial automation industry. For the first time ever it has been the target of sophisticated cyber attacks like Stuxnet, Night Dragon and Duqu.

In addition, an unprecedented number of security vulnerabilities have been exposed in industrial control products and regulatory agencies are demanding compliance to complex and confusing regulations. Cyber security has quickly become a serious issue for professionals in the process and critical infrastructure industries.

If you are a process control engineer, an IT professional in a company with an automation division, or a business manager responsible for safety or security, you may be wondering how your organization can get moving on more robust cyber security practices.

In order to provide you with guidance in this area, we have condensed material from numerous industry standards and best practice documents. We also combined our experience in assessing the security of dozens of industrial control systems.

The result is an easy-to-follow 7-step process.

More Information

A good presentation on 'Defining Secure Process Control Network Architecture'. Download this presentation for detailed reading.