By American Institute of Chemical Engineers (AIChE)
This new version of a depended on consultant combines and updates the easiest on hand box wisdom on either trayed and packed distillation columns. in a single whole, uncomplicated quantity, it offers a compilation of suggestions instead of a unmarried set of obligatory steps, permitting readers to choose the method that most closely fits their wishes. With its engineer-tested systems and distinct causes, the 3rd variation presents chemical engineers, plant managers, and different pros with top notch suggestion on assessing and measuring functionality for numerous distillation column forms in a number of functions.
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Extra resources for AIChE Equipment Testing Procedure - Trayed and Packed Columns: A Guide to Performance Evaluation
Details concerning the construction, installation, and calibration of orifices and nozzles can be found in Fluid Meters-Their Theory and Applications . An alternative procedure is outlined in Perry's Handbook . The reading of orifice or venturi-type meters is affected by the density of the flowing fluid. If the density differs from that for which the meter was calibrated, the reading, if in volumetric units, must be corrected as follows: f ^0,5 Volumetric flow rate — (Volumetric reading) x Design Density Actual Density.
Whenever possible, the instruments should be calibrated in place with the fluid to be measured, and at the temperature and pressure (gas measurement) at which it is to be used. 1). 4 0 3 . 1 Orifice Meters Orifice meters have been extensively investigated, and their performance can be accurately predicted for a variety of conditions. Details concerning the construction, installation, and calibration of orifices and nozzles can be found in Fluid Meters-Their Theory and Applications . An alternative procedure is outlined in Perry's Handbook .
10, 7 . 8 5. Cautiously open 5 Θ. Close 9. 10 7. Cautiously open 6 To get * 0 " Reading at Tower after Steps 1 - 7 8. Close 1 . 2 9. Open 13 and 14 completely and cautiously. Figure 7. Measuring Pressure Drop with Purge Gas Seal 29 AlChE Equipment Testing Procedure SEAL POT *-XJ- —^4™ ♦-X- /■^ r\ i DRIP LEGS NEEDLE VALVES FLOW INDICATORS PURGE LIQUID (HEAVIER THAN TOWER LIQUID) MANOMETER (OR DIFFERENTIAL PRESSURE INSTRUMENT) Figure 8. Measuring Pressure Drop with Purge Liquid Seal 30 Trayed and Packed Columns SEAL POT —ex- 3/r PRESSURE TAP UNE —CX- i X FILL LINE — X MANIFOLD VALVE XH-tX- LJ MANOMETER VALVE MANOMETER (OR DIFFERENTIAL PRESSURE INSTRUMENT) Figure 9.
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