Skip to main content

UNITS

Description

UNITS is a keyword that can be specified for PUMP and COMPRESSOR CHARTS. This is a requirement and must be specified.

For pumps this must be specified in FACILITY_INPUTS, whilst for compressors it must be within MODELS.

Format

Pumps

FACILITY_INPUTS:
- NAME: <pump chart name>
...
UNITS:
RATE: <rate unit, currently only AM3_PER_HOUR supported>
HEAD: <polytropic head unit, M, KJ_PER_KG, JOULE_PER_KG supported>
EFFICIENCY: <Pump efficiency unit FRACTION or PERCENTAGE.>

Compressors

MODELS:
- NAME: <name of chart, for reference>
...
UNITS:
RATE: <rate unit, currently only AM3_PER_HOUR supported>
HEAD: <polytropic head unit, M, KJ_PER_KG, JOULE_PER_KG supported>
EFFICIENCY: <polytropic efficiency unit, FRACTION and PERCENTAGE.>
....

Example

Pumps

FACILITY_INPUTS:
- NAME: single_speed_pump
TYPE: PUMP_CHART_SINGLE_SPEED
...
UNITS:
RATE: AM3_PER_HOUR
HEAD: M
EFFICIENCY: PERCENTAGE

Compressors

MODELS:
- NAME: predefined_variable_speed_compressor_chart
TYPE: COMPRESSOR_CHART
CHART_TYPE: VARIABLE_SPEED
UNITS:
RATE: AM3_PER_HOUR
HEAD: M
EFFICIENCY: FRACTION
...