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ANALYSERS

ANALYSERS. Analysers ?? Analysers are analytical instruments used for the analysis of composition of liquid,gases or solids.They basically rely on the phenomenon of interaction of energy with matter to quantify the sample composition. ENERGY INTERACTING.

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ANALYSERS

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  1. ANALYSERS

  2. Analysers ?? Analysers are analytical instruments used for the analysis of composition of liquid,gases or solids.They basically rely on the phenomenon of interaction of energy with matter to quantify the sample composition.

  3. ENERGY INTERACTING ELECTROMAGNETIC RADIATION CHEMICAL AFFINITY & REACTIVITY ELECTRIC OR MAGNETIC FIELD THERMAL & MECHANICAL ENERGY Analyser classification:

  4. Analysing system schematic: ANALOG O/P & DISPLAY SAMPLE CONDITIONING SECTION ANALYSING SECTION

  5. Practical Consideration • Sample must be representative • Physical state of sample • Uniqueness of specificity of method

  6. SAMPLE CONDITIONING: • Sample extraction • Tuning sample parameters • Stratification free sampling

  7. SAMPLE INLET TEMP PRESSURE COOLING WATER IN TO SECONDARY SAMPLE CONDITIONING COOLING WATER IN DRAIN Field Sampling Unit:

  8. TO ANALYSER SECTION TO COMMON VENT BYPASS ROTAMETER CONDENSATE POT SiO2 FILTER SAMPLE INLET ZERO GAS SPAN GAS DRAIN Secondary Sampling Unit:

  9. IR-Based Analysers: It is based on the principle of characteristic absorption of infrared radiation by molecules of the sample.The molecules absorb infrared radiation at a particular wavelength.the degree of absorption can be correlated to the composition of that particular molecule

  10. General Schematic of IR -Analyser Electronics Reference cell O/P Sample cell Photodetectors OUT IN IR- Source

  11. H2 CH4 N2 CO NH3 O2 CO2 Thermal conductivity based analysers Distinguishing ability of some gas molecules to get highly excited and conduct large amount of heat.The amount of heat carried away from hot bodies can be used to determine gas molecules. Thermal conductivity Graph Unit:ergs/s cm deg

  12. SAMPLE IN/OUT REF-GAS REF-GAS SAMPLE IN/OUT POWER SUPPLY General Schematic of Thermal Conductivity Based Analysers O/P

  13. Chemiluminescence Type of Analysers • Emission of light by electronically excited reaction product Excited state E=hv Ground state

  14. DRY AIR OZONATOR DISPLAY REACTION CHAMBER MOLY CONVERTER ELECTRONICS S.S CONVERTER NH3 SCRUBBER VENT O/P EXTERNAL PUMP Thermoenvironmental make NH3 analyser schematic (Location :DAP Stack) Sample

  15. Chemical Affinity Based O2 Analysers: Zirconia has a tendency to attract O2 molecules at elevated Temperatures .When electrodes are placed at both sides of zirconia probe,an EMF is generated proportional to the difference in partial pressure of oxygen between the reference and sample sides.

  16. O2 anlayser schematic: O2 in reference Pt electrode V ZrO2 probe Pt electrode O2 in sample Service : Boiler Flue Gas Analysis

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