Gas quality (GQ) estimation properties: lagged alternate tab
- Last UpdatedSep 24, 2024
- 2 minute read
The Lagged Alternate Estimate uses measurement data acquired from another, similar gas quality (GQ) point to compensate for a gap, or a lag, in the data collection.
The Lagged Alternate Estimate is configured to use the data at the exact time when the data has lagged. If there is no data at that precise time, the most recent valid data starting at the exact lagged time is used. A factor and an offset can be specified that will be applied to the alternate heating value. The calculation for the factor and offset applied to the alternate heating value is as follows:
Items on the GQ Estimation (LaggedAlternate tab)
|
Item |
Description |
|---|---|
|
Periods |
This allows you to define the number of periods in the past to search for the data to be used for the estimation. |
|
Heating Value Factor |
The factor applied to the heating value to correct the data. |
|
Heating Value Offset |
The offset applied to the heating value to correct the data. |
|
Source gas quality |
Selecting the button will allow you to select the GQ point that the estimated data should be created from. |