BIOMASS BOILER COMBUSTION PROBLEMS
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THE CHALLENGE OF TEMPERATURE MEASUREMENT
Thermal imaging and temperature measurement in a biomass boiler present several challenges due to the harsh operating conditions and the characteristics of biomass combustion. Some of these challenges include:
High Temperatures: Biomass boilers operate at high temperatures, especially in the combustion chamber and heat exchange surfaces. Traditional temperature sensors may not withstand such high temperatures or be able to capture extreme variations in temperature brought on by startup, shutdown, load changes, or disturbances in fuel supply.
Corrosive Environment: Biomass combustion produces corrosive by-products such as sulphur compounds and chlorides, which can degrade sensor materials and lead to measurement inaccuracies or sensor failure. Specialised materials and coatings may be necessary to protect temperature sensors from corrosion.
Ash and Particulate Build-up: Ash and particulate matter generated during biomass combustion can accumulate on temperature sensors, affecting their accuracy and response time. Regular cleaning and maintenance of sensors may be required to prevent build-up and ensure reliable temperature measurement.
Variability in Fuel Composition: Biomass fuels can vary widely in composition, moisture content, and heating value, leading to fluctuations in combustion temperature and thermal performance. Temperature sensors must accurately measure temperature under varying fuel conditions to optimise combustion efficiency.
Uneven Temperature Distribution: Biomass boilers may experience uneven temperature distribution within the combustion chamber or heat exchange surfaces due to fuel bridging, uneven fuel distribution, or combustion inefficiencies. Temperature sensors must be strategically placed to capture representative temperature readings and identify temperature gradients.
Addressing these challenges requires careful selection of temperature measurement devices, proper sensor placement and installation, regular maintenance and calibration, and integration with advanced control and monitoring systems. Collaborating with experienced engineers and suppliers familiar with biomass boiler applications can help overcome these challenges and ensure accurate and reliable temperature measurement for optimal boiler performance.
THE SOLUTION: RADIOMETRIC THERMAL IMAGING
Radiometric thermal imaging can deliver clear, live images of the boiler interior, even through smoke and hot furnace atmospheres which would obscure visual furnace camera systems, whilst taking accurate temperature measurements, showing the temperature distribution across the boiler. AMETEK Land’s solution for this application is the MWIR-B-640, a mid-wavelength infrared thermal imager using a borescope design which builds upon more than 20 years of experience with this type of technology.
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AMETEK Land (Land Instruments)
AMETEK Land (Land Instruments) is the world’s leading manufacturer of monitors and analysers for industrial infrared non-contact temperature measurement, combustion efficiency and environmental pollutant emissions.
Through our trusted range of leading-edge technologies, we are chosen the world over to deliver the highly accurate measurement solutions that precisely meet every customer’s process needs.
With unrivalled applications knowledge, choosing AMETEK Land ensures the highest standards of process safety, process control and product quality are reached.
AMETEK Land is part of the Process & Analytical Instruments Division of AMETEK, Inc., a global supplier of high-end analytical instrumentation.
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