Tackling pollution control in diesel generating sets

01/11/2018 09:16:17
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ImagesClick Image for 300dpi jpg fileTackling pollution control in diesel generating setsTackling pollution control in diesel generating setsTackling pollution control in diesel generating sets

The introduction of Tier 4 and Tier 5 emissions regulations continue to have an impact on manufacturers of diesel engines and the final products in which they are used. Tier 4 has already been implemented for non-emergency generating sets and it seems only a matter of time before they will have to meet Tier 5 requirements. To help manufacturers meet both current and future emissions regulations, Burkert can develop complete dosing packages for selective catalytic reduction (SCR) systems.

In order to comply with ever-more stringent emissions regulations, engine and vehicle manufacturers have, in the main, turned to SCR systems to reduce particulate matter and nitrogen oxides (NOx) from diesel engines. By adding carefully measured doses of diesel exhaust fluid (DEF) the NOx emissions are broken down into nitrogen and water.

The control of the dosing rate for DEF is very important to ensure optimum performance and to avoid ammonia slip, which refers to a quantity of DEF that passes through the SCR system unreacted. Similarly, too little and the NOx levels can rise above prescribed levels.

With its considerable expertise in designing and manufacturing high-precision dosing systems, Burkert can create a complete control package that can be integrated with the existing engine control infrastructure. Designed to be compact and very reliable, Burkert’s system combines a number of its products with bespoke manifolds to ensure optimum performance.

Burkert offers an extensive range of proportional valves, piloted solenoid valves and direct-acting solenoid valves that can be easily integrated with its sensors and controllers to provide a solution for any engine size. The company’s knowledge in process control systems also ensures pneumatic delivery can be accomplished for larger engines while maintaining the same high levels of dosing precision.

The design of any SCR system requires expert knowledge, not only in process control and valve design but also in dealing with the challenges that corrosive fluids present in such systems. DEF is corrosive to some metals so great care should be taken when selecting seals and materials for manufacturing the components of the system. Ideally, the number of connectors within the system are minimised; using a manifold to house control valves and sensors offers an optimum solution.

For larger systems, Burkert has the capability to design and manufacture bespoke cabinets to house SCR dosing systems, including air distribution, DEF dosing, sensors and process control modules. With all of the components drawn from the Bürkert range, they fit together seamlessly to deliver precision dosing and reliable performance.

Burkert has a strong track-record in delivering these systems to both the generator and marine engine sectors. Each industry offers its own challenges, but through a cooperative relationship, Burkert can deliver a flexible cost-effective solution that will ensure continued compliance with emissions regulations.

Image Captions:

Image 1: Burkert can supply the complete package including dosing valves, solenoids and sensors built into a bespoke manifold.

Image 2: For larger installations, all the necessary components can be supplied in a protective cabinet.

Image 3: Burkert can help manufacturers create SCR systems that enable diesel engines to meet current emissions legislation.


Burkert Fluid Control Systems is one of the leading manufacturers of control and measuring systems for fluids and gases. The products have a wide variety of applications and are used by breweries and laboratories as well as in medical engineering and space technology. The company employs over 2,500 people and has a comprehensive network of branches in 36 countries world-wide.

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Editor Contact

DMA Europa Ltd. : Brittany Kennan
Tel: +44 (0)1562 751436 Fax: +44 (0)1562 748315
Web: www.dmaeuropa.com
Email: brittany@dmaeuropa.com

Company Contact

Bürkert Fluid Control Systems : Kirsty Anderson
Tel: +44 (0)1285 648761 Fax: +44 (0)1285 648721
Web: www.burkert.co.uk
Email: kirsty.anderson@burkert.com

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