ESD ELECTRONIC SYSTEMS DESIGN, INC.

Precision Automatic Octane Analyzers - Laboratory and On-Line

 

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On-Line Octane Analyzer

 

·        0.06 Typical standard deviation

·        ASTM D-2885 compliant

·        Analysis updates every four minutes

·        No moving parts

·        Minimum down time

·        Proto calibration, ASTM system checkout, quality control analysis all included

·        Blend directly to pipeline

·        All components available from the open market (except fuel block)

 

On-line unit in analyzer room
On-line unit in analyzer room (click to enlarge)

 

Determination of octane can be made by using the “FALLING LEVEL METHOD” (known as the dynamic level method in ASTM D-2699 and D-2700). A fuel bowl without a float level control is filled, andScreen image empties as fuel is consumed by the engine. As the fuel level decreases, the changing fuel/air ratio produces a change in the knock intensity of the engine, passing from a light or no knock condition through a peak level and back to a low knock condition. By comparing the peak value to that of a known fuel (prototype), the delta octane number can be calculated.

 

With this technique, the need for moving the cylinder height and/or needle valve control during rating is eliminated.

 

·        Water-cooled aluminum block brings fuel temperature down to ASTM requirements.

·        Two bowls dedicated for product, one for proto fuel, one for quality control check fuel, leaving two spares

·        Multiple product bowls speed up analysis, as one bowl is being dumped and filled, the other is being analyzed.

·        Each bowl equipped with fill, dump and engine feed solenoids. Product bowls also have bypass solenoids.

·        Stainless steel sonic level sensors assure repeatable fill levels

·        Manifold solenoids with fuel and additive resistant seals assure long life

·        Bowls swing out of way quickly, giving access to the engine for maintenance

·        Top cover on bowl reduces evaporative losses

·        Each engine has its own terminal from which the operator initiates the blend analysis.

·        The operator and/or supervisory personnel also use this terminal for proto calibration and ASTM checkout procedures.

·        Mounted at each engine is a stainless steel instrument cabinet with viewing window.  This contains signal conditioning modules for knock signals, RTD temperature sensors, and oil pressure.

·        Process control signals (delta ON, KI, data-valid, alarm) go to the main blending computer.

·        The main control console may be located anywhere within 500 feet of the engine room. This console includes two computers, each having dual mirrored hard drives and dual power supplies.  The second computer is a cold backup (15 minutes or less to transfer control to backup computer).

·        Color printer for reports

·        High speed modem for remote diagnostics and control

·        Network ready hardware

·        Uninterruptible power supply for entire system

·        35 Gigabyte removable hard drives for program and data backup

·        An optional remote diagnostic panel operates from any telephone line (or via network connection) and is used to monitor the system operation and/or change operating characteristics from other locations.


 


 

 
HOW DOES YOUR SYSTEM BENEFIT US?
  • Run tests on multiple engines simultaneously.
  • Eliminates manual data calculation and recording. 
  • Frees operator of constantly adjusting the engine.
  • High reliability parts.
  • All components are off-the-shelf.
  • All maintenance can be accomplished by your own in-house team.
  • Unix based to assure high reliability, ease of expansion and reduces cost.
  • Hardware and software customizable to meet YOUR needs.
  • Source code is included with every installation.
  • Octane number precision of .06.
  • Cost effective design.

 
 
 
 

Copyright 2006 Electronic Systems Design, Inc.