Portable Emissions Analyzers for Gas & Diesel Engines
There are many types of stationary and mobile internal combustion engines that can run off gas or diesel fuels. Engines can be lean burning at a high air to fuel ratio (AFR) or rich burning at a low AFR. The exhaust stack gases from engines contain pollutant gases including CO, NO, NO2, NOx, and CxHy hydrocarbons as well as particulate matter. Measuring the engine exhaust emissions is important for engine tuning, performance optimization, safety, and proving emissions compliance to regulatory authorities.
Optimization & Safety
Measuring the O2 and CO levels immediately after the exhaust gas leaves the engine and before the introduction of a catalyst, can provide an indication of how lean or rich the engine is burning and can be utilized for tuning of the engine for optimal combustion performance. Significant levels of CxHy combustible hydrocarbons, over and above the recommended values by the engine manufacturer, are an indication of unwanted and unburned fuel. Additional combustion adjustments or engine maintenance may be required to solve this potential safety hazard, especially for natural gas burning engines.
The emissions of higher concentrations of CO, NOx, and hydrocarbons in the stack gas can be health and safety hazards and are, in most cases, regulated by the environmental agencies.