CHROMATOGRAPHY PAVITHRA AP/EIE SNSCT POWER PLANT INSTRUMENTATION.

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Presentation transcript:

CHROMATOGRAPHY PAVITHRA AP/EIE SNSCT POWER PLANT INSTRUMENTATION

INTRODUCTION Used to measure amount of individual gases in a power plant. Repetitive sampling procedure. Gas chromatography. Stationary phase and moving phase Samples concentration recorded as chromatogram. POWER PLANT INSTRUMENTATION

CONSTRUCTION Gas supply unit Thermal conductivity cell Sample injector Drier Chromatographic column Exhaust POWER PLANT INSTRUMENTATION

WORKING CONSTANT VOLUME SAMPLE GAS INJECTED WITH CARIER GAS – HELIUM 2 COLUMNS 1ST COLUMN- 30 INCH 2ND COLUMN – 6 FT 60 INCH PACKED WITH 30% HEXAMETHYL PHOSPHORAMIDE. ACTIVATED WITH MOLECULAR SIEVE 13% HELIUM PASSES THROUGH 2 THERMISTORS POWER PLANT INSTRUMENTATION

WORKING SAMPLE ADDED FLOWS THROUGH COLUMN 1 THEN THROUGH THERMISTOR 3 THEN COLUMN 2 LASTLY THROUGH THERMISTOR 4 4 THERMISTOR – 4 ARMS OF BRIDGE READING RECORDED ON CHART TIME TAKEN TO PASS THROUHG COLUMN IS THE MEASURE OF CONCENTRATION POWER PLANT INSTRUMENTATION

WORKING PEAK IN CHRAMATOGRAM IS EACH SEPERATED COMPONENT AREA OF GRAPH = CONCENTRATION CHART = 10 INCH ACCURACH = 0.2 % POWER PLANT INSTRUMENTATION

Chromatographic Apparatus POWER PLANT INSTRUMENTATION

CHROMATOGRAM POWER PLANT INSTRUMENTATION

THANK YOU POWER PLANT INSTRUMENTATION