Zeeco’s new, patented FlareSentry™ eliminates inaccuracies and delayed results inherent to indirect flare monitoring. Rather than determining compliance and combustion efficiency through a time-consuming, repetitive process of measuring inputs, assuming reactions and velocities, and arriving at an assumed operating status, FlareSenty utilizes Video Imaging Spectro-Radiometry (VISR), a real time advanced multi-spectral imager, that directly, remotely, autonomously, and continuously measures combustion efficiency (CE) in real time. Unlike a passive Fourier Transform Infrared (FTIR) system, FlareSentry’s VISR technology captures all the spectral bands for each pixel at the same time. The accuracy of the VISR technology removes the need for indirect surrogate parameters such as Combustion Zone Net Heating Value (CZNHZ) and tip velocity. When required, the FlareSentry system automatically adjusts supplemental fuel additions, as well as any assist source (gas, steam, or air) via a closed-loop control system – lowering costs for supplemental fuel while maintaining required destruction efficiency (DE).
FlareSentry also allows operators to eliminate tedious aiming, data reduction, and ongoing operation and maintenance costs associated with other flare monitoring methods while staying in compliance with Refinery Risk Technology Review (RTR) rule under 40 CFR 63.670. Previously, flare operators have been limited to indirect flare monitoring options, including Gas Chromatograph (GC), calorimeters, flare gas flow meters and monitoring, and steam / air controls. Now, the maintenance and calibration-free Zeeco FlareSentry offers an alternative direct monitoring system that eliminates ongoing maintenance and operational costs.
Cost savings vary depending on the current indirect monitoring method, but in many cases, operators can save more than 50% of the capital, operation, and maintenance costs over the life of the equipment. Based on VISR’s unique multi-spectral Infrared (IR) imager, FlareSentry uses a high frame rate, high spectral selectivity, and high spatial resolution over a fast data acquisition cycle of 91–33ms.