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mechanicalwith-tool

Pump Station Rising Main Energy Surge Package

Calculates source-bound pump station rising-main metrics from a deterministic SSC-11 task-owned source pack. The template combines Hazen-Williams loss, total dynamic head, hydraulic and motor power, surge pressure, pressure trip margin, pipe pressure margin, feeder current, voltage drop, and an overall synthetic pass score.

with-tool: The model is given an executable Python calculator script.

Standards

Feeder voltage-drop coordination Hazen-Williams hydraulic calculations Joukowsky surge screening Pump duty energy checks

Tags

deterministic energy feeder mechanical pump-station rising-main surge

How this task is generated

One template produces many comparable benchmark tasks while keeping the scoring contract fixed.

01
Template
The reusable contract shown on this page.
02
Scenario
An archetype and site context are sampled.
03
Difficulty tier
Inputs may be hidden at harder tiers.
04
Task prompt
The model responds with the declared outputs.

Parameters

Inputs the model receives, and the outputs it is scored on.

Inputs

18 inputs

Always given

Included directly in every task prompt.

18

Show 18 inputs

Flow
flow_l_s
PUMP-SSC11-006 pump duty flow
68.13617500413491 L/s
Static head
static_head_m
PROFILE-SSC11-006 static head
31 m
Rising main length
rising_main_length_m
PROFILE-SSC11-006 rising-main length
915.5489290180652 m
Pipe internal diameter
pipe_internal_diameter_mm
PIPE-SSC11-006 pipe internal diameter
250.27590903686897 mm
Hazen williams c
hazen_williams_c
PIPE-SSC11-006 Hazen-Williams coefficient
130
Pump efficiency
pump_efficiency
PUMP-SSC11-006 pump efficiency
0.82
Motor efficiency
motor_efficiency
PUMP-SSC11-006 motor efficiency
0.894144295124421
Velocity change fraction
velocity_change_fraction
PUMP-SSC11-006 surge velocity-change fraction
0.85
Wave speed
wave_speed_m_s
PIPE-SSC11-006 screening wave speed
928.5183235445191 m/s
Fluid density
fluid_density_kg_m3
PIPE-SSC11-006 fluid density
998 kg/m3
Base pressure
base_pressure_kpa
PUMP-SSC11-006 steady base pressure
520 kPa
Pipe pressure class
pipe_pressure_class_kpa
PIPE-SSC11-006 pipe pressure class
1850 kPa
High high trip setpoint
high_high_trip_setpoint_kpa
PUMP-SSC11-006 high-high pressure trip setpoint
1750 kPa
Feeder voltage
feeder_voltage_v
FEED-SSC11-006 feeder voltage
415 V
Motor power factor
motor_power_factor
FEED-SSC11-006 motor power factor
0.8481852929567529
Feeder length
feeder_length_km
FEED-SSC11-006 feeder route length
0.18 km
Conductor resistance
conductor_resistance_ohm_km
FEED-SSC11-006 conductor resistance
0.3319917367928062 ohm/km
Allowable voltage drop percent
allowable_voltage_drop_percent
MEMO-SSC11-006 allowable voltage drop
5 %

Scored outputs

13 outputs

Hazen williams loss

hazen_williams_loss_m

Rising-main Hazen-Williams loss

Scores if within ±3% of the reference value.

Total dynamic head

total_dynamic_head_m

Static head plus rising-main friction loss

Scores if within ±3% of the reference value.

Hydraulic power

hydraulic_power_kw

Hydraulic power at pump duty

Scores if within ±3% of the reference value.

Motor input power

motor_input_power_kw

Motor input power including pump and motor efficiency

Scores if within ±3% of the reference value.

Steady velocity m s

steady_velocity_m_s

Steady velocity in the rising main

Scores if within ±3% of the reference value.

Surge pressure rise

surge_pressure_rise_kpa

Screening surge pressure rise

Scores if within ±3% of the reference value.

Peak transient pressure

peak_transient_pressure_kpa

Base pressure plus surge pressure rise

Scores if within ±3% of the reference value.

Pressure trip margin

pressure_trip_margin_kpa

High-high trip setpoint margin

Scores if within ±3% of the reference value.

Pipe pressure margin

pipe_pressure_margin_kpa

Pipe pressure class margin

Scores if within ±3% of the reference value.

Feeder current

feeder_current_a

Three-phase feeder current

Scores if within ±3% of the reference value.

Feeder voltage drop

feeder_voltage_drop_percent

Feeder voltage drop percent

Scores if within ±3% of the reference value.

Voltage drop margin

voltage_drop_margin_percent

Allowable voltage-drop margin

Scores if within ±3% of the reference value.

Overall pass score

overall_pass_score

Pass score for the task-owned surge, pressure, and feeder checks

Scores if within ±3% of the reference value.

Difficulty

Each template is sampled at three tiers. Harder tiers may hide inputs, forcing the model to infer them from the scenario description.

All inputs remain visible at every tier

For this template, difficulty scales through parameter and scenario ranges rather than hidden information.

easy:: All source-pack values given for the SSC-11 rising-main package
medium:: All source-pack values given for the SSC-11 rising-main package
hard:: All source-pack values given for the SSC-11 rising-main package

Task bundle

The exact instruction and parameter contract used to generate this task, pinned to the published library source.

/workspace

instruction.md
pump-station-rising-main-energy-surge-package_calc.py

Teal lines show Jinja input conditions, not task visibility policy. A line renders only when that input or tool is visible.

1You are a mechanical pump-station engineer checking a task-owned synthetic SSC-11 rising-main energy, surge, and feeder package.2 3Use only the task-owned synthetic source pack values shown below for numeric grading. Hazen-Williams hydraulic calculations, Joukowsky surge screening, pump duty energy checks, and feeder voltage-drop coordination routes shape the workflow context only; they are not extra data sources for this instance.4 5## Scene6 7- Product family: `SSC-11-LH-06`8- Pump duty note: `PUMP-SSC11-006`9- Rising-main profile: `PROFILE-SSC11-006`10- Pipe pressure basis: `PIPE-SSC11-006`11- Feeder schedule: `FEED-SSC11-006`12- Coordination memo: `MEMO-SSC11-006`13 14## Source Values15 16| Item | Value |17|------|-------|18| Flow | {{ flow_l_s }} L/s |19| Static head | {{ static_head_m }} m |20| Rising-main length | {{ rising_main_length_m }} m |21| Pipe internal diameter | {{ pipe_internal_diameter_mm }} mm |22| Hazen-Williams C | {{ hazen_williams_c }} |23| Pump efficiency | {{ pump_efficiency }} |24| Motor efficiency | {{ motor_efficiency }} |25| Surge velocity-change fraction | {{ velocity_change_fraction }} |26| Wave speed | {{ wave_speed_m_s }} m/s |27| Fluid density | {{ fluid_density_kg_m3 }} kg/m3 |28| Base pressure | {{ base_pressure_kpa }} kPa |29| Pipe pressure class | {{ pipe_pressure_class_kpa }} kPa |30| High-high trip setpoint | {{ high_high_trip_setpoint_kpa }} kPa |31| Feeder voltage | {{ feeder_voltage_v }} V |32| Motor power factor | {{ motor_power_factor }} |33| Feeder length | {{ feeder_length_km }} km |34| Conductor resistance | {{ conductor_resistance_ohm_km }} ohm/km |35| Allowable voltage drop | {{ allowable_voltage_drop_percent }} percent |36 37## Checks38 39- Hazen-Williams loss equals `10.67 x length x flow^1.852 / (C^1.852 x diameter^4.871)`, using m3/s and m.40- Total dynamic head equals static head plus friction head.41- Hydraulic power equals `density x 9.81 x flow x TDH / 1000`.42- Motor input power divides hydraulic power by pump and motor efficiencies.43- Surge pressure rise equals `density x wave_speed x velocity_change / 1000`.44- Peak pressure equals base pressure plus surge pressure rise.45- Feeder current uses three-phase power, voltage, and power factor.46- Overall pass score is `1.0` only when pressure trip, pipe pressure, and voltage-drop margins pass; otherwise it is `0.0`.47 48## Output Format49 50Write a compact memo to `/workspace/output.md`. Include a source-boundary statement that this is a task-owned synthetic source pack. Preserve the object IDs above and state whether the baseline source pack passes the current docs-only checks.51 52Do not claim authority approval, accepted project evidence, software export validity, full standards compliance, executable real source-pack parsing, generated benchmark readiness, or benchmark readiness.53 54Include a fenced JSON block with exactly these numeric keys:55 56```json57{58  "hazen_williams_loss_m": <numeric_value>,59  "total_dynamic_head_m": <numeric_value>,60  "hydraulic_power_kw": <numeric_value>,61  "motor_input_power_kw": <numeric_value>,62  "steady_velocity_m_s": <numeric_value>,63  "surge_pressure_rise_kpa": <numeric_value>,64  "peak_transient_pressure_kpa": <numeric_value>,65  "pressure_trip_margin_kpa": <numeric_value>,66  "pipe_pressure_margin_kpa": <numeric_value>,67  "feeder_current_a": <numeric_value>,68  "feeder_voltage_drop_percent": <numeric_value>,69  "voltage_drop_margin_percent": <numeric_value>,70  "overall_pass_score": <numeric_value>71}72```73

Scenario archetypes

Each generated task is drawn from one of these realistic scenario bands.

Site contexts ground each scenario in a real locale the model can use to infer hidden values.

Ssc11 rising main surge case

ssc11_rising_main_surge_case

Pump station rising-main energy and surge case

pump-stationrising-main-energy-surge-check

Parameter ranges

flow_l_s: 68.13617500413491
static_head_m: 31
rising_main_length_m: 915.5489290180652
pipe_internal_diameter_mm: 250.27590903686897
hazen_williams_c: 130
pump_efficiency: 0.82
motor_efficiency: 0.894144295124421
velocity_change_fraction: 0.85
wave_speed_m_s: 928.5183235445191
fluid_density_kg_m3: 998
base_pressure_kpa: 520
pipe_pressure_class_kpa: 1850
high_high_trip_setpoint_kpa: 1750
feeder_voltage_v: 415
motor_power_factor: 0.8481852929567529
feeder_length_km: 0.18
conductor_resistance_ohm_km: 0.3319917367928062
allowable_voltage_drop_percent: 5

Example task

pump-station-ssc11-rising-main-surge-case-preview — hard difficulty, all inputs given.

Pump station rising-main energy and surge case. pump-station. Required outputs: hazen_williams_loss_m, total_dynamic_head_m, hydraulic_power_kw, motor_input_power_kw, steady_velocity_m_s, surge_pressure_rise_kpa

The model sees

Scenario context and visible inputs.

flow_l_s: 68.1362 to 68.1362 L/s
static_head_m: 31 to 31 m
rising_main_length_m: 915.549 to 915.549 m
pipe_internal_diameter_mm: 250.276 to 250.276 mm
hazen_williams_c: 130 to 130
pump_efficiency: 0.82 to 0.82
motor_efficiency: 0.894144 to 0.894144
velocity_change_fraction: 0.85 to 0.85
wave_speed_m_s: 928.518 to 928.518 m/s
fluid_density_kg_m3: 998 to 998 kg/m3
base_pressure_kpa: 520 to 520 kPa
pipe_pressure_class_kpa: 1850 to 1850 kPa
high_high_trip_setpoint_kpa: 1750 to 1750 kPa
feeder_voltage_v: 415 to 415 V
motor_power_factor: 0.848185 to 0.848185
feeder_length_km: 0.18 to 0.18 km
conductor_resistance_ohm_km: 0.331992 to 0.331992 ohm/km
allowable_voltage_drop_percent: 5 to 5 %

Executable tool: pump-station-rising-main-energy-surge-package_calc.py

The model must infer

Inputs withheld at this difficulty.

Nothing. All inputs are supplied.

The model must produce

The scored JSON answer schema.

{
  "hazen_williams_loss_m": <number>,
  "total_dynamic_head_m": <number>,
  "hydraulic_power_kw": <number>,
  "motor_input_power_kw": <number>,
  "steady_velocity_m_s": <number>,
  "surge_pressure_rise_kpa": <number>,
  "peak_transient_pressure_kpa": <number>,
  "pressure_trip_margin_kpa": <number>,
  "pipe_pressure_margin_kpa": <number>,
  "feeder_current_a": <number>,
  "feeder_voltage_drop_percent": <number>,
  "voltage_drop_margin_percent": <number>,
  "overall_pass_score": <number>
}

hazen_williams_loss_m · scored within ±3%
total_dynamic_head_m · scored within ±3%
hydraulic_power_kw · scored within ±3%
motor_input_power_kw · scored within ±3%
steady_velocity_m_s · scored within ±3%
surge_pressure_rise_kpa · scored within ±3%
peak_transient_pressure_kpa · scored within ±3%
pressure_trip_margin_kpa · scored within ±3%
pipe_pressure_margin_kpa · scored within ±3%
feeder_current_a · scored within ±3%
feeder_voltage_drop_percent · scored within ±3%
voltage_drop_margin_percent · scored within ±3%
overall_pass_score · scored within ±3%