Hierarchy
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Basic Data
| Data Element | VVWWPROZ |
| Short Description | Percentage share for hot water consumption |
Data Type
| Category of Dictionary Type | D | Domain |
| Type of Object Referenced | No Information | |
| Domain / Name of Reference Type | VVPROZE | |
| Data Type | DEC | Counter or amount field with comma and sign |
| Length | 5 | |
| Decimal Places | 2 | |
| Output Length | 6 | |
| Value Table |
Further Characteristics
| Search Help: Name | ||
| Search Help: Parameters | ||
| Parameter ID | ||
| Default Component name | PERC_SHARE_HOT_WATER | |
| Change document | ||
| No Input History | ||
| Basic direction is set to LTR | ||
| No BIDI Filtering |
Field Label
| Length | Field Label | |
| Short | 10 | HW% |
| Medium | 20 | Hot water consumpt. |
| Long | 34 | Percentage share hot water cons. |
| Heading | 34 | Percentage share hot water cons. |
Documentation
Definition
The percentage share for hot water consumption can be calculated in three ways:
Calculation of fuel consumption
HW% = B / W
where W = Tot.Cons./ HV and B = (2,5 * V * (TW - 10)) / HV
Calculation of the heat amount consumed
HW% = Q / total consumption
where Q = 2.0 * V * (TW - 10)
Fixed flat rate for hot water consumption
Experience has shown that 18% is an appropriate figure to use as the flat rate amount for hot water consumption.
List of abbreviations
V = measured volume of consumed hot water in m3
TW = measured or estimated average hot water temperature
HV = Heating value of the consumed fuel in Kwh/l or other unit
B = Fuel consumption in unit of measurement used for HW
Tot.Cons. = total consumed heating amount as input value
W = Total heating amount to be calculated
Q = Heating amount of hot water consumption
All data originates from §9 of the German heating expenses regulations.
History
| Last changed by/on | SAP | 20031111 |
| SAP Release Created in |