Fuel moisture sensor for biomass plants

Emerson Process Management has integrated a fuel moisture sensor into their Ovation control system to allow continuous monitoring of biomass feedstock for moisture content.

07/01/2013


Emerson Process Management now offers an integrated solution that enables biomass-fuelled power plants to continually monitor feedstock moisture content and adjust the combustion process for better efficiency. The solution, which combines a biomass fuel moisture sensor with Emerson’s Ovation expert control system, can help reduce maintenance costs as well as boost net yearly MWh production.

Biomass fuels vary considerably in their energy content. Fuel that has high moisture content will generate less heat and will have a significant effect on energy recovery in steam generators. The traditional method of controlling the combustion process is by monitoring the flue gases and adjusting the combustion air to give the best efficiency. However, rapidly changing fuel quality and boiler characteristics can make maintaining optimum conditions difficult.

Emerson’s new integrated solution continuously monitors fuel for moisture content as it is being fed into the combustion chamber. The Ovation system uses this data to adjust the combustion air to match the characteristics of the fuel based on the master set-point output (MWe steam or pressure), boiler response and the thermal cycle overall. This enables the plant to react much more quickly to changes in fuel moisture content, maximizing combustion efficiency.

Suitable for new or existing installations, the system comprises a small skid that takes biomass fuel from the transport system, measures its moisture content using microwave technology and returns it to the transport system. 

The moisture sensor is connected via Ethernet to the Ovation system, providing an input to the boiler and thermal-cycle control logic. The data provided is analyzed to provide fast and accurate information on the temperature and moisture content of the feedstock.

Monitoring and controlling combustion air can dramatically influence profits and costs of boiler operations. Excess oxygen does nothing to improve combustion. Instead, it actually serves to reduce boiler efficiency by absorbing heat that could be used in steam production. Ovation helps to modulate the amount of air in the system to provide the exact amount of air that the system needs, ensuring efficient combustion. 

Emerson Process Management

www.emersonprocess.com 

- See more Control Engineering sensor products.



No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
Each year, a panel of Control Engineering editors and industry expert judges select the System Integrator of the Year Award winners.
Control Engineering Leaders Under 40 identifies and gives recognition to young engineers who...
Learn more about methods used to ensure that the integration between the safety system and the process control...
Adding industrial toughness and reliability to Ethernet eGuide
Technological advances like multiple-in-multiple-out (MIMO) transmitting and receiving
Virtualization advice: 4 ways splitting servers can help manufacturing; Efficient motion controls; Fill the brain drain; Learn from the HART Plant of the Year
Two sides to process safety: Combining human and technical factors in your program; Preparing HMI graphics for migrations; Mechatronics and safety; Engineers' Choice Awards
Detecting security breaches: Forensic invenstigations depend on knowing your networks inside and out; Wireless workers; Opening robotic control; Product exclusive: Robust encoders
The Ask Control Engineering blog covers all aspects of automation, including motors, drives, sensors, motion control, machine control, and embedded systems.
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
News and comments from Control Engineering process industries editor, Peter Welander.
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
This is a blog from the trenches – written by engineers who are implementing and upgrading control systems every day across every industry.
Anthony Baker is a fictitious aggregation of experts from Callisto Integration, providing manufacturing consulting and systems integration.
Integrator Guide

Integrator Guide

Search the online Automation Integrator Guide
 

Create New Listing

Visit the System Integrators page to view past winners of Control Engineering's System Integrator of the Year Award and learn how to enter the competition. You will also find more information on system integrators and Control System Integrators Association.

Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.