1. Virtual Analyser www.technologyedge.biz

2. What is it Have you ever faced an analyser failure that requires a plant shut down to repair & wished that there was a back up analyser Have you ever faced an analyser failure that requires a plant shut down to repair & wished that there was a back up analyser Do you regularly struggle with issues related to calibration gas, zero check, span check etc. Do you regularly struggle with issues related to calibration gas, zero check, span check etc. If yes, VA (Virtual Analyser) can solve these problems If yes, VA (Virtual Analyser) can solve these problems Contact: AKHAQAN@technologyedge.biz

3. What is it VA is a Patented Software which can “Calculate & Predict” the parameter to be measured without physically measuring it VA is a Patented Software which can “Calculate & Predict” the parameter to be measured without physically measuring it How does it work? How does it work? See the next slide for a summary See the next slide for a summary Or, if you want full technical details, you can look up Patent # 8,768,664 on the internet Or, if you want full technical details, you can look up Patent # 8,768,664 on the internet Contact: AKHAQAN@technologyedge.biz

4. How it works There are two examples on the next slides which explain how the VA can “calculate & predict” the parameter to be monitored There are two examples on the next slides which explain how the VA can “calculate & predict” the parameter to be monitored First example relates to O2 (Oxygen) analyser on a combustion source e.g. Boiler or Reformer First example relates to O2 (Oxygen) analyser on a combustion source e.g. Boiler or Reformer Second example related to NOx (Oxides of Nitrogen) analyser for environmental monitoring on a combustion source e.g. a Boiler or Reformer Second example related to NOx (Oxides of Nitrogen) analyser for environmental monitoring on a combustion source e.g. a Boiler or Reformer Contact: AKHAQAN@technologyedge.biz

5. Example-1 of VA Use O2 (Oxygen) Analysers are: Critical for combustion control Critical for combustion control Safety & efficiency critical Safety & efficiency critical Prone to drift, malfunction & frequent calibration Prone to drift, malfunction & frequent calibrationVA: Can do the job of an O2 analyser by using inputs on which combustion process is dependent Can do the job of an O2 analyser by using inputs on which combustion process is dependent Contact: AKHAQAN@technologyedge.biz

6. Example-1 of VA Use As you already know, combustion is dependent on following parameters e.g.: As you already know, combustion is dependent on following parameters e.g.: Fuel flow rate Fuel flow rate Air flow rate Air flow rate Combustion temperature Combustion temperature Changing these parameters results in changes in the combustion process and residual O2 in the stack Changing these parameters results in changes in the combustion process and residual O2 in the stack The VA uses these inputs and “calculates” the O2 The VA uses these inputs and “calculates” the O2 Contact: AKHAQAN@technologyedge.biz

7. Example-1 of VA Use This “calculated” O2 is calibrated against a primary O2 standard. This “calculated” O2 is calibrated against a primary O2 standard. Once this is done, the VA can safely & accurately tell the residual O2. Once this is done, the VA can safely & accurately tell the residual O2. Since the VA takes inputs of several parameters to calculate one output, it is vastly reliable & accurate. Since the VA takes inputs of several parameters to calculate one output, it is vastly reliable & accurate. If you already have a hardware O2 analyser, the VA can be used as a reference up to see when & if maintenance of O2 analyser is required. If you already have a hardware O2 analyser, the VA can be used as a reference up to see when & if maintenance of O2 analyser is required. Contact: AKHAQAN@technologyedge.biz

8. Example-2 of VA Use CEMS (Continuous Emissions Monitoring System) If you maintain a hardware CEMS for NOx, CO, CO2 etc., you already know that it’s a struggle to keep it running, see the next slide for details If you maintain a hardware CEMS for NOx, CO, CO2 etc., you already know that it’s a struggle to keep it running, see the next slide for details The VA can do the job of a CEMS without all the complications, see the next slide for details The VA can do the job of a CEMS without all the complications, see the next slide for details The VA when used in environmental compliance is called PEMS (Predictive Emissions Monitoring System) The VA when used in environmental compliance is called PEMS (Predictive Emissions Monitoring System) Contact: AKHAQAN@technologyedge.biz

9. To understand this part of the presentation, please: - Enable the slide show mode (press F5) - To move through the presentation you can right click your mouse OR use page-up/down OR use up/down arrows.

10. Stack NOx Pump Chiller Analyzer Combustion source Heated Sampled Line Analyzer House Air Conditioner Calibration Gas Cylinders (Daily Span/Zero Check) Flow rate Flow Monitor Hardware NOx ppm DAS (Data Acquisition System) DCSDAS DCS (Distributed Control System) Calibration gas NOx ng/J How hardware analyser works for NOx

11. DCS PIMS - NOx - CO - CO2 - SO2 - O2 How VA works for NOx Data Signal Boiler Virtual Analyser Fuel Flow Air Flow Combustion Temp Calculate & Predict

12. Comparison Hardware Analysers: Are physically installed in the field Are physically installed in the field Actually measure the concentration e.g. NOx Actually measure the concentration e.g. NOx Are the primary source of information Are the primary source of information Virtual Analysers: Are not physically installed in the field Are not physically installed in the field “Calculate & Predict” using other process parameters “Calculate & Predict” using other process parameters Are the secondary source of information Are the secondary source of information Contact: AKHAQAN@technologyedge.biz

13. Uses of VA It can be used for: Environmental regulatory requirements Environmental regulatory requirements Some hazardous environments which are unsafe for personnel Some hazardous environments which are unsafe for personnel Applications where repair of hardware analysers require a plant shut down Applications where repair of hardware analysers require a plant shut down Contact: AKHAQAN@technologyedge.biz

14. Recap VA: VA: Are approved by regulatory agencies e.g. US EPA (United States Environmental Protection Agency) Are approved by regulatory agencies e.g. US EPA (United States Environmental Protection Agency) Have lower capital, operating & maintenance cost Have lower capital, operating & maintenance cost Are simple & reliable Are simple & reliable Contact: AKHAQAN@technologyedge.biz