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Cutting Control Valve Noise

Cutting Control Valve Noise

The modal attenuator consists of a series of carefully engineered resonant cavities to provide sound reduction across a wide spectrum of frequencies. The full-bore design allows unrestricted flow, and internal drain channels drain off condensate which could build up in the device and reduce performance. Installed just downstream of the valve, the modal attenuator achieves an overall sound reduction up to 15 dBa, while creating no restriction in flow capacity whatsoever. The device can be used on existing valves or paired with a low noise control valve to achieve even higher levels of noise reduction. Unlike diffusers or silencers, the modal attenuator works consistently across a wide range of flow rates.

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Duke Energy Addresses Attemperator Issues

Duke Energy Addresses Attemperator Issues

Duke Energy’s Heat Recovery Steam Generator Engineer Eugene Eagle and Emerson Automation Solutions’ Director of Steam Conditioning Group Justin Goodwin Power Engineering article, How Duke Energy Addresses Attemperator Issues, describes the deployment of a new steam atomization attemperator design that allowed Duke to reliably and safely run their combined cycle units at very low load conditions.

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Reducing Valve Emissions to Drive Sustainability Improvements

Reducing Valve Emissions to Drive Sustainability Improvements

In a Fugitive Emissions Journal article, ESG Improvements Through Emissions Reduction: Issues and Opportunities, Emerson’s Bruce Ofori shares how new technology adoptions, and reviewing outdated practices and equipment retrofits, can build stakeholder confidence with respect to the reporting of greenhouse gases (GHG) emissions, volatile organic compounds (VOC), and hazardous air pollutants.

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