LIVEdataset aec-bench@releasetasks 552models 18last submission … · built …
mechanicalwith-tool

Biogas Production

Estimates daily biogas and methane production from volatile solids feed, destruction percentage, biogas yield, and methane fraction. The template reports solids destroyed, biogas volume, methane volume, and methane energy.

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

Standards

WEF MOP 8

Tags

biogasdeterministicmechanicalsludgewastewater

How this task is generated

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

  1. 01

    Template

    The reusable contract shown on this page.

  2. 02

    Scenario

    An archetype and site context are sampled.

  3. 03

    Difficulty tier

    Inputs may be hidden at harder tiers.

  4. 04

    Task prompt

    The model responds with the declared outputs.

Parameters

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

Inputs

4 inputs

Always given

Included directly in every task prompt.

4

  • Volatile solids feed

    volatile_solids_feed_kg_d

    Daily volatile solids feed to digestion

    0 – 1000000 kg/d

  • Volatile solids destruction pct

    volatile_solids_destruction_pct

    Volatile solids destruction percentage

    0 – 100 %

  • Biogas yield

    biogas_yield_m3_kg_vs

    Biogas yield per kilogram of volatile solids destroyed

    0 – 5 m3/kg VS

  • Methane fraction

    methane_fraction

    Methane fraction of biogas

    0 – 1

Scored outputs

4 outputs

Volatile solids destroyed kg d

volatile_solids_destroyed_kg_d

Volatile solids destroyed

Scores if within ±3% of the reference value.

Biogas m3 d

biogas_m3_d

Daily biogas production

Scores if within ±3% of the reference value.

Methane m3 d

methane_m3_d

Daily methane production

Scores if within ±3% of the reference value.

Methane energy kwh d

methane_energy_kwh_d

Daily methane energy content

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 parameters given for a municipal digester
medium:
All parameters given across digestion settings
hard:
All parameters given for industrial digestion

Task bundle

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

/workspace

  • instruction.md
  • biogas-production_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 senior wastewater process engineer specializing in sludge digestion.2 3## Problem4 5Estimate daily biogas and methane production from volatile solids destruction.6 7## Given8 9| Parameter | Value | Unit |10|-----------|-------|------|11| Volatile solids feed | {{ volatile_solids_feed_kg_d }} | kg/d |12| Volatile solids destruction | {{ volatile_solids_destruction_pct }} | % |13| Biogas yield | {{ biogas_yield_m3_kg_vs }} | m3/kg VS destroyed |14| Methane fraction | {{ methane_fraction }} | - |15 16{% if archetype_description is defined %}17### Digestion Context18 19{{ archetype_description }}20{% endif %}21 22{% if tool_available %}23## Available Tool24 25A biogas production calculation tool is available at `/workspace/{{ meta.name }}_calc.py`. Run it with:26 27```bash28python3 /workspace/{{ meta.name }}_calc.py --help29```30 31You may use this tool to verify your calculations or compute values directly.32{% endif %}33 34## Required35 36Calculate the following:37 381. Volatile solids destroyed in kg/d392. Biogas production in m3/d403. Methane production in m3/d414. Methane energy in kWh/d using 9.97 kWh/m3 methane42 43## Constraints44 45- No internet access is available. Work from engineering knowledge and the provided tool.46- Use volatile solids destroyed = feed x destruction percentage / 100.47- Use biogas = volatile solids destroyed x biogas yield.48- Use methane = biogas x methane fraction.49 50## Output Format51 52Show your step-by-step working in Markdown. At the end of your solution, include a JSON block with your final answers in exactly this format:53 54```json55{56 "volatile_solids_destroyed_kg_d": <numeric_value>,57 "biogas_m3_d": <numeric_value>,58 "methane_m3_d": <numeric_value>,59 "methane_energy_kwh_d": <numeric_value>60}61```62 63Write your complete solution to `/workspace/output.md`.64 65

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.

Municipal digester

municipal_digester

Municipal anaerobic digester biogas estimate

municipal-wwtpanaerobic-digester
Parameter ranges
volatile_solids_feed_kg_d
1000 – 100000
volatile_solids_destruction_pct
35 – 65
biogas_yield_m3_kg_vs
0.5 – 1.5
methane_fraction
0.55 – 0.7

Industrial digester

industrial_digester

Industrial sludge digestion biogas estimate

industrial-wwtphigh-strength-waste
Parameter ranges
volatile_solids_feed_kg_d
500 – 200000
volatile_solids_destruction_pct
25 – 70
biogas_yield_m3_kg_vs
0.4 – 2
methane_fraction
0.5 – 0.75

Example task

industrial-wwtp-industrial-digester-preview — hard difficulty, all inputs given.

Industrial sludge digestion biogas estimate. industrial-wwtp. Required outputs: volatile_solids_destroyed_kg_d, biogas_m3_d, methane_m3_d, methane_energy_kwh_d

The model sees

Scenario context and visible inputs.

volatile_solids_feed_kg_d
500 to 200000 kg/d
volatile_solids_destruction_pct
25 to 70 %
biogas_yield_m3_kg_vs
0.4 to 2 m3/kg VS
methane_fraction
0.5 to 0.75 -

Executable tool: biogas-production_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.

{
  "volatile_solids_destroyed_kg_d": <number>,
  "biogas_m3_d": <number>,
  "methane_m3_d": <number>,
  "methane_energy_kwh_d": <number>
}
  • volatile_solids_destroyed_kg_d · scored within ±3%
  • biogas_m3_d · scored within ±3%
  • methane_m3_d · scored within ±3%
  • methane_energy_kwh_d · scored within ±3%