Procedure

The procedure for using simulator is as follows:

Expt. 1: Measurement of differential pressure

Aim: To study the measurement of the differential pressure due to change in flow.

Step by step Procedure:

1. Study the diagram completely.

2. Select the value of beta ratio (β).

3. Select the value of orifice diameter (d) in meter.

4. Click on Done. This will lock the values of β and d.

5. Change the value of Volumetric Flow Rate in LPM (Q) by a cursor.

6. Click on Show Cd tab. The coefficient of discharge will be displayed.

7. Enter the calculated user output differential pressure. For calculations of differential pressure ?P, click on Get Formula tab.

8. Using formula calculate the value of the differential pressure and enter the answer in the box provided. Submit the answer using submit button.

9. If your calculation is correct the differential pressure will be displayed on screen. Change the value of Q and repeat the steps 5 to 8.

10. Minimum six calculations are necessary to plot the graph and after six calculations the plot tab will be activated.

11. Click on Plot to see the graph. Study the graph of differential pressure variation when flow rate is changed.

12. Hide the graph and switch to the next experiment.

Expt. 2: Effect of Change in service on flow measurement.

Aim: Study the effect of service change on the measurement of differential pressure.

In this experiment, by using the formula one can change the type of the service and calculate the change in differential pressure.

Step by step Procedure:

1. Study the diagram completely.

2. Select the service. According to change in service the density will change and value if the density will be displayed on the screen.

3. Select the value of beta ratio (β).

4. Select the value of orifice diameter (d) in meter.

5. Click on Done. This will lock the values of β and d.

6. Change the value of Volumetric Flow Rate in LPM (Q) by a cursor.

7. Click on Show Cd tab. The coefficient of discharge will be displayed.

8. Enter the calculated user output differential pressure. For calculations of differential pressure ?P, click on Get Formula tab.

9. Using formula calculate the value of the differential pressure and enter the answer in the box provided. Submit the answer using submit button.

10. If your calculation is correct the differential pressure will be displayed on screen. Change the value of Q and repeat the steps 6 to 9.

11. Minimum six calculations are necessary to plot the graph and after six calculations the plot tab will be activated.

12. Click on Plot to see the graph. Study the graph of differential pressure variation when flow rate is changed.

13. Hide the graph and switch to the next experiment.

Expt. 3: Effect of tapping on flow measurement.

Aim: Study the effect of service change on the measurement of differential pressure.

In this experiment, by using the formula one can change the type of the service and calculate the change in differential pressure.

Step by step Procedure:

1. Study the diagram completely.

2. Select the tapping for the orifice meter.

3. Select the service. According to change in service selected tapping will be displayed on the screen.

4. Select the value of beta ratio (β).

5. Select the value of orifice diameter (d) in meter.

6. Click on Done. This will lock the values of β and d.

7. Change the value of Volumetric Flow Rate in LPM (Q) by a cursor.

8. Click on Show Cd tab. The coefficient of discharge will be displayed.

9. Enter the calculated user output differential pressure. For calculations of differential pressure ?P, click on Get Formula tab.

10. Using formula calculate the value of the differential pressure and enter the answer in the box provided. Submit the answer using submit button.

11. If your calculation is correct the differential pressure will be displayed on screen. Change the value of Q and repeat the steps 7 to 10.

12. Minimum six calculations are necessary to plot the graph and after six calculations the plot tab will be activated.

13. Click on Plot to see the graph. Study the graph of differential pressure variation when flow rate is changed.

14. Hide the graph and switch to the next experiment.

Expt. 4: Effect of temperature and pressure on flow measurement.

Aim: Study the effect of change in temperature and pressure on the measurement of flow.

In this experiment, by using the formula one can change the value of temperature and observe the effect on change in differential pressure.

Step by step Procedure:

1. Study the diagram completely.

2. Select the service. The selected service will be displayed on the screen.

3. Select the value of temperature.

4. Select the value of beta ratio (β).

5. Select the value of orifice diameter (d) in meter.

6. Click on Done. This will lock the values of β and d.

7. Change the value of Volumetric Flow Rate in LPM (Q) by a cursor.

8. Click on Show Cd tab. The coefficient of discharge will be displayed.

9. Enter the calculated user output differential pressure. For calculations of differential pressure ?P click on Get Formula tab.

10. Using formula calculate the value of the differential pressure and enter the answer in the box provided (Enter all digits). Submit the answer using submit button.

11. If your calculation is correct the differential pressure will be displayed on screen. Change the value of Q and repeat the steps 7 to 10.

12. Minimum three calculations are necessary to plot the graph and after three calculations the plot tab will be activated.

13. Click on Plot to see the graph. Study the graph of differential pressure variation when flow rate is changed.

14. Hide the graph and switch to the next part of the experiment.

After completion of both the parts, you can proceed to Post Test to find out if you have understood all aspects of the experiment.