The necessity of measuring CO2 levels in flue gases

Energy consumption optimization helps not only to cut costs in any field of activity but also to minimize potential environmental damage.

Most often, waste is burned to reduce the total amount of garbage, but valuable energy is released during combustion, which can and should be used. Obviously, the exact composition of the waste is difficult to predict. Traditional fuels, such as hydrocarbons, can also vary in quality, which necessitates continuous monitoring of exhaust gas quality.

By measuring the concentration of carbon dioxide, the process can be controlled to achieve optimal energy extraction. This is important considering that the fuel may contain many different combustible substances in varying proportions.

How does it work?

Flue gas can be extracted into an analyzer using a sampler. Then the gas is transported through the sample line to a cooler installed inside the analyzer, where it is dried. The dry and cooled gas sample is then filtered to remove particles before being directed to the measurement system consisting of a pair of sensors. Each sensor is alternately supplied with a sample of the test gas and reference air. The sensors generate an electrical output proportional to the specific gas component.

What complicates measurements in this application is the environment in which the sensors are located. The main problem is that they may be exposed to high temperature, humidity, and a corrosive environment. This requires a measurement device resistant to aggressive environments. Also, the intended device may need mobility, for example, when a technician visits a private home to check the heating system.

Cost reduction

Such an application of CO₂ sensors, such as S8 Alarm or K30, has many advantages. It saves energy and, consequently, money. Additionally, it positively impacts the environment. This is possible thanks to optimized combustion achieved by measuring the CO₂ concentration in flue gases.

This application also enhances safety and reliability, which can be an important factor that encourages people to choose to install such a measurement system. Less hazardous exhaust also leads to fewer people suffering from CO and CO₂ poisoning or other dangerous gases. This helps reduce potential healthcare costs. It is also easier to control the combustion of various types of fuel, such as waste or garbage, which is usually a major environmental problem.

Key benefits

• Combustion optimization
• Less hazardous exhaust
• Energy and cost savings
• Simplified control of combustion processes for various types of fuel