Air-Fuel Ratio Controllers

Air-Fuel Ratio (AFR) is the ratio of air-to-fuel present in a combustion process, such as in an internal combustion engine or industrial furnace. Below lists three common AFR control schemes:

Stoichiometric (Stoich) -- Optimal amount of air is provided to completely burn all of the fuel.

Rich-Burn Mixture -- Less air is provided, resulting in excess fuel.

Lean-Burn Mixture -- Excess air is provided, resulting in less fuel.

With a proper AFR system installed, like the patented REMVue®  AFR or Murphy's Compliance Controls Stoichiometric AFR combined with Catalysts, it is possible to effectively optimize the combustion parameters and therefore, emissions can be maintained at acceptable levels. An advantage of using the REMVue®  AFR over the Stoich AFR with Catalyst option, is an advanced engine and compressor control system has the added capability to accurately monitor, diagnose, and control key engine parameters, with a quickly realized return on investment (ROI). Nonetheless, by using an AFR system, users can expect reduced fuel costs and emissions, optimized engine performance, and increased asset uptime due to decreased maintenance. 

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