Hierarchy
IS-UT (Software Component) SAP Utilities/Telecommunication⤷
IS-U-BI (Application Component) Contract Billing⤷
EE20 (Package) IS-U: Billing
Basic Data
| Data Element | JOULTHOM |
| Short Description | Take Into Account the Joule-Thomsom Effect |
Data Type
| Category of Dictionary Type | D | Domain |
| Type of Object Referenced | No Information | |
| Domain / Name of Reference Type | JOULTHOM | |
| Data Type | CHAR | Character String |
| Length | 1 | |
| Decimal Places | 0 | |
| Output Length | 1 | |
| Value Table |
Further Characteristics
| Search Help: Name | ||
| Search Help: Parameters | ||
| Parameter ID | ||
| Default Component name | ||
| Change document | ||
| No Input History | ||
| Basic direction is set to LTR | ||
| No BIDI Filtering |
Field Label
| Length | Field Label | |
| Short | 10 | Joule-Thom |
| Medium | 15 | Joule-Thom-Eff. |
| Long | 20 | Joule-Thomson effect |
| Heading | 3 | JTE |
Documentation
Use
If this field is selected, the Joule-Thompson effect is calculated.
The gas temperature t that was calculated normally is changed to new gas temperature NT as follows:
NT = t - (( IP - MP ) / C )
where:
- IP = Initial pressure before register
- MP = Outgoing pressure at register
- C = Constant ratio: pressure difference / temperature difference (for example, 100 kPa / 0.5 °C)
Dependencies
The corrected temperature NT is used as follows, depending on what was specified in the Joule-Thomson Eff. field:
- Direct temperature correction
The new temperature NT is directly slotted into the temperature component Ts / ( To + t ) of the formula for the volume correction factor where:
- Ts = standard temperature
- To = zero temperature
and: t = NT.
- Temperature correction with Joule-Thomson factor
The temperature is corrected by multiplying the temperature component Tn / ( To + t ) by the following ratio of the temperature components, which constitutes the Joule-Thomson factor (JTF):
JTF = ( Ts/ ( To + NT ) ) / ( Ts / ( To + t ) ).
You can maintain the values for the ratio of pressure drop to temperature drop date-specifically using a key in Customizing under SAP Utilities -> Contract Billing -> Special Functions -> Gas Billing -> Volume Correction Factor -> Temperature Maintain Values for Pressure-Temperature Ratio Joules Thomson.
History
| Last changed by/on | SAP | 20050224 |
| SAP Release Created in |
