Thousands of internal combustion engines are located throughout the world. They range in size from small emergency generators to massive 16 cylinder diesels powering the largest ocean vessels. Stationary engines are used for generating electricity, compressing natural gas, pumping fluids, used in oil and gas production, used by municipalities for combined heating and power stations, and a myriad of other uses.

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Generally speaking, there are three types of stationary engines:

• Spark ignited, 4-stroke, lean burn or rich burn or “clean burns”
• Spark ignited, 2-stroke lean burns, and
• Diesel engines

The exhaust gases contain pollutants such as NOx, SO₂, CO, Hydrocarbons, soot and particulates. Each engine type has its own particular emission signature. However, engine manufactures and the supporting industries have developed innovative ways of controlling and substantially reducing emissions. Measurements of the exhaust gas are an essential component of engine control and help demonstrate continued air quality improvement.

Use of gas analysis for e.g.

• Measurement during the development process
• Measurements as part of long-term tests
• Measurements as part of certification procedures
• Measurements for state and Federal compliance

Flow chart of a stationary engine system with measuring point

Click here for a two stroke engine animation.
Click here for a four stroke engine animation.

Our reference handbook, "Flue Gas Analysis in Industry" is a helpful guide describing over 25 different industrial process applications.

Topics include:

• Where and how to test
• How and why testing can help your process
• Concentrations of combustion gas in application
• Regulations
• Calculation
• And more!