Sealing Engineering

API RP 682 Mechanical Seal Flush Flow Rate (Heat Balance Method) calculator

API RP 682 Mechanical Seal Flush Flow Rate (Heat Balance Method) engineering calculator.

Runnable This tool can run, but independent engineering verification has not been established.

Quick Answer

The api rp 682 mechanical seal flush flow rate (heat balance method) calculator computes volumetric flush flow rate from the input values you provide.

Calculator

Volumetric flush flow rate (m³⁄s)
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Result Interpretation

API RP 682 Mechanical Seal Flush Flow Rate (Heat Balance Method) calculator computes Volumetric flush flow rate in m^3/s using the defined engineering formula and the input values provided. Volumetric flush flow rate is expressed in m^3/s. No universal acceptance threshold is defined by this calculator.

Worked Example

Verified calculation

Given:

  • Mechanical seal power loss = 120
  • Process-side heat gain to seal chamber = 30
  • Coolant specific heat capacity = 4180
  • Coolant density = 998
  • Coolant inlet temperature = 293.15
  • Coolant outlet temperature rise limit = 298.15

Expected Result:

  • Volumetric flush flow rate = 7.222E-6

Engineering Interpretation:

Under the given input conditions, the calculated result is: Volumetric flush flow rate = 7.222E-6 m^3/s.

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

volumetric flush flow rate = (mechanical seal power loss + process-side heat gain to seal chamber) / (coolant specific heat capacity * coolant density * (coolant inlet temperature - coolant outlet temperature rise limit))

Volumetric flush flow rate.

Variables

SymbolLabelRoleDescription
seal_power_loss Mechanical seal power loss INPUT Mechanical seal power loss
process_heat_gain Process-side heat gain to seal chamber INPUT Process-side heat gain to seal chamber
coolant_specific_heat Coolant specific heat capacity INPUT Coolant specific heat capacity
coolant_density Coolant density INPUT Coolant density
coolant_inlet_temp Coolant inlet temperature INPUT Coolant inlet temperature
coolant_outlet_temp Coolant outlet temperature rise limit INPUT Coolant outlet temperature rise limit
volumetric_flow_rate Volumetric flush flow rate OUTPUT Volumetric flush flow rate

Calculation Steps

  1. Enter the mechanical seal power loss in W.
  2. Enter the process-side heat gain to seal chamber in W.
  3. Enter the coolant specific heat capacity in J/(kg*K).
  4. Enter the coolant density in kg/m^3.
  5. Enter the coolant inlet temperature in K.
  6. Enter the coolant outlet temperature rise limit in K.
  7. Step 1: Compute volumetric flush flow rate.
  8. Read the volumetric flush flow rate (m^3/s) from the results.

Frequently Asked Questions

What does this calculator calculate?

The API RP 682 Mechanical Seal Flush Flow Rate (Heat Balance Method) calculator estimates Volumetric flush flow rate based on the input parameters you provide

Why is mechanical seal power loss important in this calculation?

mechanical seal power loss is directly proportional to volumetric flush flow rate. When you enter mechanical seal power loss in W, the calculator uses it in the engineering formula to compute the output

How should I interpret the result volumetric flush flow rate?

The calculator outputs volumetric flush flow rate in m^3/s. To convert to liters per second, multiply by 1000. For liters per minute, multiply by 60000. 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: Mechanical seal power loss (W), Process-side heat gain to seal chamber (W), Coolant specific heat capacity (J/(kg*K)), Coolant density (kg/m^3), Coolant inlet temperature (K), Coolant outlet temperature rise limit (K). 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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