Summary & Total Savings

Calculation Methodology

Heat Loss at Product (Radiation)

HeatLossAtProduct = ε × σ × (T₁⁴ - T₂⁴) × A × W / 1000

  • ε (MaterialValue) = Emissivity (0.85 Carbon Steel, 0.65 Stainless Steel)
  • σ = Stefan-Boltzmann constant (5.6704×10⁻⁸ W/m²·K⁴)
  • T₁ = Steam temperature + 273 (K)
  • T₂ = Ambient temperature + 273 (K)
  • A = Product surface area (m²)
  • W = Wind loss factor (1.64 Indoor, 2.1 Outdoor Sheltered, 2.86 Outdoor Exposed)
  • 1000 = Conversion (W to kW)

Uses Stefan-Boltzmann law for radiative heat transfer from uninsulated surfaces.

Boiler Efficiency & Insulation

LossAtBoilerEfficiency = HeatLossAtProduct / BoilerEfficiency × 100

SavingByInsulating = InsulationEfficiency × LossAtBoilerEfficiency

  • Boiler Efficiency: User input (typically 70-90%)
  • Insulation Efficiency: User input (typically 0.9 = 90%)

Accounts for boiler efficiency losses and insulation effectiveness.

Annual Energy Savings

FuelSavingsPerYearkWh = SavingByInsulating × TotalHours

  • SavingByInsulating: Energy saving rate (kW)
  • TotalHours: Annual operating hours (HoursPerDay × DaysPerWeek × WeeksPerYear)

Calculates total annual energy savings in kilowatt-hours.

Financial & Carbon Savings

Fuel Savings = FuelSavingsPerYearkWh × FuelCost

Carbon Savings = FuelSavingsPerYearkWh × CarbonIntensity / 1000

Carbon Cost Savings = CarbonSavingsPerYearTonnes × CostOfCarbon

  • FuelCost: Cost per kWh (user-defined, currency-selectable)
  • CarbonIntensity: Carbon emissions per kWh (kg CO₂/kWh)
  • CostOfCarbon: Cost per tonne of carbon (user-defined)

Calculates both financial savings and carbon footprint reduction.

Steam Trap Data

Surface areas are determined from:

  • Type: Steam trap type (Ball Float, Thermostatic, etc.)
  • Sub Type: Specific model variations
  • Size: Nominal diameter (DN15, DN20, etc.)
  • Part Number: Specific model identification

Data sourced from manufacturer specifications and engineering standards.

Temperature Calculations

Steam Temperature: Automatically calculated from pressure using saturation tables.

  • Pressure Input: Steam pressure (barg)
  • Temperature Output: Saturation temperature (°C)
  • ΔT: Steam temp - Ambient temp

Temperature difference drives heat transfer rate.