RFA-2000 Real-Time Fuel-Air Ratio Analyzer

The model RFA-2000 real-time fuel-air ratio analyzer utilizes infra-red laser absorption of the 3.39 micron HeNe laser line in a simple-to-use and rugged form-factor. RFA Systems offers a unique instrument that features an alignment-free optical bench for easy setup and use in the field. The model RFA-2000 features a low-volume optical absorption cell and infrared detector mounted directly to the laser head for trouble-free and robust optical. The small volume optical absorption cell is fed with a gas sample from a micro sampling tube or “stinger” assembly that serves effectively as a “suction optical probe” (SOP). This design permits a straight forward analysis of the resulting optical absorption signal as the optical path length is well-defined. Depending on the application, various path length optical cells are available: a 12 mm one for high concentrations (> 0.1% HC by volume), and a 100 mm version for low concentrations (< 0.1 % HC by volume). Optional accessories such as data acquisition systems, compact heat exchangers for cooling the sample temperature, vacuum pumps, and even complete notebook pc based systems are available.  Example of millisecond test data from the RFA-2000 can be found below.

Our satisfied customers of the RFA-2000 include:

• The University of Central Florida, Dept. of Mechanical Engineering (http://www.mmae.ucf.edu/)
• Siemens Westinghouse Power Generation (http://www.powergeneration.siemens.com/en/index.cfm)
• Solar Turbines (http://mysolar.cat.com/)
• United Technologies Research Center (http://www.utrc.utc.com/)
• University of California, Berkeley, Dept. of Mechanical Engineering, Combustion Analysis Laboratory (http://www.me.berkeley.edu/cal/)

A brochure of the RFA-2000 can be found here.