Multi_R_Designer Tutorial

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Problem statement: The user looks for total pressure drop data in the integrated databank for which the following operating conditions are achieved.

Temperature: superior than 273 K
Pressure: 10-100 bars
Liquid superficial velocity: 10 mm/s +/- 10% (or 9-11 mm/s)
Gas superficial velocity: inferior to 0.1 m/s

Start new query 

2) From the Database:Trickle bed (1) panel, select the Hydrodynamics tab. Check the box corresponding to Total pressure drop, and press the Execute button. The experimental data concerning total pressure drop will be extracted from the databank and presented in the Search results listing (11666 experimental measurements were extracted).

Comment: When there is no values recorded in the Value field "none", Multi_R_Designer does not assign any specifications and will automatically extract all experimental data dealing with the selected parameter.

3) Select the Operating conditions tab. Check the box, and then the Value field option  corresponding to the Temperature field. A new dialog window will appear.
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4) The Temperature dialog window contains the minimum and maximum temperature values for the 11666data sets (273-313 K). To fulfill the temperature constraint, check the (>=) option and write 273 in the corresponding box. Press OK, then Execute.

Comment: Since this value (273 K) is equal to the minimum value, the discrimination on temperature will not reduce the actual list.
 
 

5) In the Operating conditions tab, check the Pressure box option. In order to work in Bars instead of Pascals, press the arrow in the unit field. A choice of pressure units is presented to the user. Choose the bar option, and the subsequent pressure values will be transformed in bars. Then, select the Value pen  corresponding to the Pressure field.

6) Similarly to the temperature case, the Pressure dialog window contains the range values for the 11666 data sets (1-100 bar). To fulfill the pressure specification, check the bracket [,] option and write 10 in the left box, 100 in the right box. Press OK, then Execute. It will reduce the Search results list to 1948 data sets from 7 publications.
 
 

7) In the Operating conditions tab, check the Liquid superficial velocity box. To work in mm/s instead of the default unit m/s, press the arrow in the unit field. Choose the mm/s option. Select the Value field pen  corresponding to the Liquid superficial velocity field.

8) In the Liquid superficial velocity dialog window, check the (=) option and write 10 +/- 10% mm/s. Press OK, then Execute. The Search results list contains now 209 data sets from 4 publications.
 

9) For the last specification, still in the Operating conditions tab, check the Gas superficial velocity box option, and the Value field option .  In the Gas superficial velocity dialog window, check the (<=) option and write 0.1 in the corresponding box. Press OK, then Execute. The final Search results listing regroups 169 data sets fulfilling all specifications mentioned in the problem statement.
 

10) Save  the actual project as Case problem I.mr in a folder of your choice.

CONCLUSION: For further exploration, the user can represent any information related to the 169 data sets into different graphical form of his choice by activating the Plot creator.

Multi_R_Designer Tutorial