Helium Conservation Cost Savings Calculator
Conserve Helium and Save
Conserve your GC carrier gas to help control costs
This calculator will determine the cost savings that could be realized by implementing Gas Saver with and without nitrogen standby. Simply complete the required fields at the top and the results will display below.
Agilent Gas Saver works with split/splitless and multimode inlets by reducing the GC split flow rate at a specified time after the injection while maintaining constant septum purge and column flow rates throughout the analytical run.
Combining Gas Saver with nitrogen standby can save even more if your system is not in continuous operation. This approach requires the helium conservation module for Agilent 8890, 8860, and 7890 GCs. Using the OpenLab CDS “SLEEP.M” and “WAKE.M” methods, the module automatically switches the carrier gas supply from helium to nitrogen during idle time, further conserving helium.
See how much you can save
Replace the default values in the fields below with information for your specific method and click the calculate button to see the results. All costs are assumed to be in your local currency and the calculator assumes the helium and nitrogen cylinders are the same size.
| He carrier gas flow rate (mL/min) | |
| He split flow rate (mL/min) | |
| He septum purge rate (mL/min) | |
| Gas Saver flow rate (mL/min) | |
| Gas Saver start time (min) | |
| Total run time (min) | |
| Gas volume in cylinder (L) | |
| Runs per day | |
| He cylinder cost | |
| N2 cylinder cost |
| Normal use (constant He flow) | Gas Saver | Gas Saver with N2 standby | |
|---|---|---|---|
| Daily He usage (L) | 78 | 37 | 11 |
| He cylinder life (days) | 103 | ||
| Daily N2 usage (L) | n/a | n/a | 25 |
| N2 cylinder life (days) | n/a | n/a | |
| Annual He cost | 1068 | 502 | 157 |
| Annual N2 cost | n/a | n/a | 34 |
| Annual total gas cost | 1068 | 502 | |
| Annual savings vs. normal use* | 0 | 567 | 877 |
Actual savings will depend on the accuracy of the information provided, integrity of the carrier gas flow path, and other factors.