Quick Answer
Calculate Flame Holder Conjugate Thermal Load Calculator
Calculator
Result Interpretation
Flame Holder Conjugate Thermal Load Calculator computes Flame holder thermal load (heat flux) in W/m^2 using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Adiabatic flame temperature = 2150
- Radiative heat transfer coefficient = 175
- Flame holder surface temperature = 920
- Convective heat transfer coefficient = 240
- Excess air ratio = 1.15
Expected Result:
- Flame holder thermal load (heat flux) = 512364.1875
Engineering Interpretation:
Under the given input conditions, the calculated result is: Flame holder thermal load (heat flux) = 512364.1875 W/m^2.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
heat flux = (convective heat transfer coefficient + radiative heat transfer coefficient) * (adiabatic flame temperature - flame holder surface temperature) * (1 + 0.025 * (excess air ratio - 1.0))Formula family: formula_combustion_flame_holder_thermal_load_calculator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| h_conv | Convective heat transfer coefficient | INPUT | Convective heat transfer coefficient |
| h_rad | Radiative heat transfer coefficient | INPUT | Radiative heat transfer coefficient |
| T_gas | Adiabatic flame temperature | INPUT | Adiabatic flame temperature |
| T_wall | Flame holder surface temperature | INPUT | Flame holder surface temperature |
| excess_air | Excess air ratio | INPUT | Excess air ratio |
| heat_flux | Flame holder thermal load (heat flux) | OUTPUT | Flame holder thermal load (heat flux) |
Calculation Steps
- Enter the convective heat transfer coefficient in W/(m^2*K).
- Enter the radiative heat transfer coefficient in W/(m^2*K).
- Enter the adiabatic flame temperature in K.
- Enter the flame holder surface temperature in K.
- Enter the excess air ratio in dimensionless.
- Step 1: Compute flame holder thermal load (heat flux).
- Read the flame holder thermal load (heat flux) (W/m^2) from the results.
Engineering Summary
Calculate Flame Holder Conjugate Thermal Load Calculator
Frequently Asked Questions
What does this calculator calculate?
The Flame Holder Conjugate Thermal Load Calculator estimates Flame holder thermal load (heat flux) based on the input parameters you provide
Why is convective heat transfer coefficient important in this calculation?
convective heat transfer coefficient is directly proportional to flame holder thermal load (heat flux). When you enter convective heat transfer coefficient in W/(m^2*K), the calculator uses it in the engineering formula to compute the output
How should I interpret the result flame holder thermal load (heat flux)?
The calculator outputs flame holder thermal load (heat flux) in W/m^2. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Convective heat transfer coefficient (W/(m^2*K)), Radiative heat transfer coefficient (W/(m^2*K)), Adiabatic flame temperature (K), Flame holder surface temperature (K), Excess air ratio (dimensionless). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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