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ToolFusion / Boiler / Engineering Tools

Project Tool: Boiler Equipment Sizing And Selection

Specification & Integration Verification

F6 Composition for Boiler Equipment Sizing And Selection

● Not Golden Verified ● Project Trust Verified Runnable: 5 / 10 steps
VERIFIED SCOPE
○ fuel_mass_flow_rate_calculation CALCULATION Runnable
○ stoichiometric_air_to_fuel_ratio_lookup CALCULATION Manual Workflow
○ combustion_air_mass_flow_calculation CALCULATION Partial
○ economizer_effectiveness_calculation CALCULATION Partial
○ flue_gas_exit_temperature_calculation CALCULATION Runnable
○ minimum_flue_gas_temperature_verification PASS / FAIL capable Runnable
○ energy_output_calculation CALCULATION Partial
○ energy_input_calculation CALCULATION Partial
○ boiler_efficiency_calculation CALCULATION Runnable
○ efficiency_validation_against_minimum_standard PASS / FAIL capable Runnable
⚠ This tool does not currently verify Design_condition_derating_and_resolution, Boiler_heat_duty_calculation, Boiler_architecture_selection, ASME_component_sizing_engine, Off_design_performance_prediction, Code_compliance_verification_engine, Boiler_thermal_capacity_calculation, Auxiliary_system_sizing_bundle, ASME_BPVC_Section_I_thickness_verification, Boiler_performance_prediction.
PROJECT INPUTS

Runnable deterministic steps: 5 / 10. Enter the project conditions used by this verification workflow. Prefilled values (21/27 inputs) are demonstration inputs, not recommended design values.

01Step 1: fuel_mass_flow_rate_calculationFormula
MW
MJ/kg
Derive required fuel mass flow from thermal duty and fuel energy content
02Step 2: stoichiometric_air_to_fuel_ratio_lookupManual Workflow
Obtain theoretical air/fuel mass ratio for natural gas (CH₄-dominated) per ASTM D3588
03Step 3: combustion_air_mass_flow_calculationFormula
kg/s
kg_air/kg_fuel
%
Compute total air mass flow including excess air margin
04Step 4: economizer_effectiveness_calculationFormula
W/m²·K
m²
kg/s
kJ/kg·K
kg/s
kJ/kg·K
Determine heat exchanger effectiveness using NTU method for gas-water counterflow configuration
05Step 5: flue_gas_exit_temperature_calculationFormula
°C
dimensionless
°C
Compute outlet flue gas temperature using effectiveness definition and cold-fluid limits
06Step 6: minimum_flue_gas_temperature_verificationValidation Rule
Ensure predicted flue gas exit temperature remains above acid dew point to prevent corrosion
07Step 7: energy_output_calculationFormula
kg/s
kJ/kg
kJ/kg
Compute useful thermal energy delivered to steam
08Step 8: energy_input_calculationFormula
kg/s
MJ/kg
Compute chemical energy input from fuel flow and LHV
09Step 9: boiler_efficiency_calculationFormula
MW
MW
Compute thermal efficiency as ratio of useful output to fuel energy input
10Step 10: efficiency_validation_against_minimum_standardValidation Rule
Ensure calculated efficiency meets minimum regulatory threshold for industrial packaged boilers

⚠ Runnable deterministic steps: 5 / 10. Steps marked "Input Required" or "Example Input Required" need user-provided engineering values before calculation.

Deterministic calculation · Results become stale when engineering inputs change.
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ENGINEERING EVIDENCE

Golden Coverage0 / 10
Project Trust11 / 11 PASS
RuntimeDeterministic
Components0 small tools, 10 steps

SCOPE & LIMITATIONS

NOT CURRENTLY VERIFIED
○ Design_condition_derating_and_resolution
○ Boiler_heat_duty_calculation
○ Boiler_architecture_selection
○ ASME_component_sizing_engine
○ Off_design_performance_prediction
○ Code_compliance_verification_engine
○ Boiler_thermal_capacity_calculation
○ Auxiliary_system_sizing_bundle
○ ASME_BPVC_Section_I_thickness_verification
○ Boiler_performance_prediction
These capabilities are outside the current verified workflow.

HOW THIS VERIFICATION WORKS

  1. Step 1: fuel_mass_flow_rate_calculation — performs a deterministic calculation from the provided inputs. No acceptance criterion is applied; the result is CALCULATED only.
  2. Step 2: stoichiometric_air_to_fuel_ratio_lookup — engineering workflow step. Follow the documented method for manual execution.
  3. Step 3: combustion_air_mass_flow_calculation — performs a deterministic calculation from the provided inputs. No acceptance criterion is applied; the result is CALCULATED only.
  4. Step 4: economizer_effectiveness_calculation — performs a deterministic calculation from the provided inputs. No acceptance criterion is applied; the result is CALCULATED only.
  5. Step 5: flue_gas_exit_temperature_calculation — performs a deterministic calculation from the provided inputs. No acceptance criterion is applied; the result is CALCULATED only.
  6. Step 6: minimum_flue_gas_temperature_verification — compares engineering inputs against deterministic thresholds and produces a PASS or FAIL decision.
  7. Step 7: energy_output_calculation — performs a deterministic calculation from the provided inputs. No acceptance criterion is applied; the result is CALCULATED only.
  8. Step 8: energy_input_calculation — performs a deterministic calculation from the provided inputs. No acceptance criterion is applied; the result is CALCULATED only.
  9. Step 9: boiler_efficiency_calculation — performs a deterministic calculation from the provided inputs. No acceptance criterion is applied; the result is CALCULATED only.
  10. Step 10: efficiency_validation_against_minimum_standard — compares engineering inputs against deterministic thresholds and produces a PASS or FAIL decision.

This tool coordinates 2 validation steps and 8 calculation steps. The overall engineering decision uses ALL_REQUIRED_VALIDATION_PASS aggregation: only validation steps contribute to the pass/fail outcome; calculation steps produce data only.

METHODS & EQUATIONS

All formulas are resolved from canonical runtime definitions and executed deterministically by the client-side engine.

Step 1: fuel_mass_flow_rate_calculation

FormulaQ_dot*1e3/LHV

Step 2: stoichiometric_air_to_fuel_ratio_lookup

Manual Workflow
Use standard stoichiometric air/fuel ratio for pipeline natural gas: α_stoich = 17.2 kg_air/kg_fuel (ASTM D3588-22, Table 1)

Step 3: combustion_air_mass_flow_calculation

Formulaṁ_fuel * α_stoich * (1 + EA / 100)

Step 4: economizer_effectiveness_calculation

Formula1 - exp((-U * A / ṁ_g / c_pg) * (1 - (ṁ_g * c_pg) / (ṁ_s * c_pf)))

Step 5: flue_gas_exit_temperature_calculation

FormulaT_gi - ε * (T_gi - T_fwo)

Step 6: minimum_flue_gas_temperature_verification

Validation Rule
T_go >= 140 [engineering_standard:ASME_PTC_4.4_2022_Section_6.3.2]

Step 7: energy_output_calculation

Formulaṁ_s * (h_s - h_fw) / 1e3

Step 8: energy_input_calculation

Formulaṁ_fuel * LHV

Step 9: boiler_efficiency_calculation

FormulaQ_out/Q_in*100

Step 10: efficiency_validation_against_minimum_standard

Validation Rule
η_boiler >= 82 [engineering_standard:DOE_10CFR431.86_Table_1]

UNDERSTANDING THE RESULTS

PASS
A proven validation criterion passed. The engineering input satisfies the deterministic threshold.
FAIL
A proven validation criterion failed. The engineering input does not satisfy the deterministic threshold.
CALCULATED
A deterministic calculation completed, but no acceptance criterion exists for this step. CALCULATED does NOT mean PASS.
RESULT NOT VALID
Runtime executed but engineering validity requirements were not met.
INCOMPLETE
Required inputs or workflow steps are incomplete.

The overall decision reflects only validation steps. Calculation steps produce numerical results without pass/fail claims.

WHEN TO USE THIS TOOL

  • When deterministic Boiler engineering verification is needed for project-specific conditions.
  • For calculation of fuel_mass_flow_rate_calculation (Step 1).
  • For calculation of stoichiometric_air_to_fuel_ratio_lookup (Step 2).
  • For calculation of combustion_air_mass_flow_calculation (Step 3).
  • For calculation of economizer_effectiveness_calculation (Step 4).
  • For calculation of flue_gas_exit_temperature_calculation (Step 5).
  • For validation of minimum_flue_gas_temperature_verification (Step 6).
  • For calculation of energy_output_calculation (Step 7).
  • For calculation of energy_input_calculation (Step 8).
  • For calculation of boiler_efficiency_calculation (Step 9).
  • For validation of efficiency_validation_against_minimum_standard (Step 10).
  • For deterministic pre-checks before formal engineering review or submission.

When NOT to use this tool: This tool does not replace laboratory testing, formal engineering analysis by a licensed professional, or code-compliance certification. It performs deterministic threshold comparison and calculation only.

ENGINEERING FAQ

What does this verification tool check?

This tool performs 10 deterministic engineering steps: (1) fuel_mass_flow_rate_calculation, (2) stoichiometric_air_to_fuel_ratio_lookup, (3) combustion_air_mass_flow_calculation, (4) economizer_effectiveness_calculation, (5) flue_gas_exit_temperature_calculation, (6) minimum_flue_gas_temperature_verification, (7) energy_output_calculation, (8) energy_input_calculation, (9) boiler_efficiency_calculation, (10) efficiency_validation_against_minimum_standard.

What does a PASS result mean?

A PASS result means the validation step's deterministic threshold comparison was satisfied. It does not constitute laboratory certification or code compliance.

What does a CALCULATED result mean?

A CALCULATED result means the deterministic calculation completed, but no acceptance criterion is applied to this step. CALCULATED does NOT mean PASS.

What is not currently verified by this workflow?

Capabilities not currently verified include: Design_condition_derating_and_resolution, Boiler_heat_duty_calculation, Boiler_architecture_selection, ASME_component_sizing_engine, Off_design_performance_prediction.

How many steps are golden verified?

0 out of 10 steps have been verified with deterministic golden test cases.

COMPONENT TOOLS

This workflow currently contains no bound executable Small Tools. Steps are defined by engineering methods and reference materials.

CalculationWorkflow StepBoiler combustion air requirement estimation
CalculationWorkflow StepBoiler combustion air requirement estimation
CalculationWorkflow StepBoiler combustion air requirement estimation
CalculationWorkflow StepBoiler flue gas temperature prediction at economizer exit
CalculationWorkflow StepBoiler flue gas temperature prediction at economizer exit
ValidationWorkflow StepBoiler flue gas temperature prediction at economizer exit
CalculationWorkflow StepBoiler efficiency estimation at design load
CalculationWorkflow StepBoiler efficiency estimation at design load
CalculationWorkflow StepBoiler efficiency estimation at design load
ValidationWorkflow StepBoiler efficiency estimation at design load