Plumbing Steam Pipe Sizing Calculator

Screen actual steam mass-flow and matched velocity catalog jointly; saturation/superheat/pressure conditions supplied externally, not water or air pipe sizing, no steam operating instructions.

Description

Steam-pipe selection must satisfy both mass-flow capacity and a velocity ceiling under matched operating conditions.

Steam-pipe selection must satisfy both mass-flow capacity and a velocity ceiling under matched operating conditions.1

The returned values include Caller jointly compatible steam pipe ids. The How section below explains the calculation, input rules and interpretation.

When to use Plumbing Steam Pipe Sizing Calculator

Use Plumbing Steam Pipe Sizing Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No steam-property calculation, condensate behavior or pressure-loss design is supplied.

Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.

How to use Plumbing Steam Pipe Sizing Calculator and understand its results

  1. Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
  2. Enter callerSteamPipeIds, callerVerifiedMatchedSteamMassCapacityKgHour, callerVerifiedMatchedSteamVelocityMSecond, observedRequiredSteamKgHour, callerMaximumSteamVelocityMSecond using the field table and calculation rules, then run the tool.
  3. Read callerJointlyCompatibleSteamPipeIds. The explanation below defines the units, signs, ordering and any flags or placeholder values.
  4. If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
Input fieldMeaningValue type; see rules belowRequirement
callerSteamPipeIdsCaller steam pipe idslist of stringRequired
callerVerifiedMatchedSteamMassCapacityKgHourCaller verified matched steam mass capacity kg hourlist of numberRequired
callerVerifiedMatchedSteamVelocityMSecondCaller verified matched steam velocity m secondlist of numberRequired
observedRequiredSteamKgHourObserved required steam kg hournumberRequired
callerMaximumSteamVelocityMSecondCaller maximum steam velocity m secondnumberRequired

Enter aligned nonempty unique nonblank IDs, nonnegative capacities and velocities, plus nonnegative demand and velocity ceiling. Return all jointly eligible IDs.

eligible=(massCapacity≥requiredMassFlow) and (candidateVelocity≤velocityLimit)

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output fieldMeaningValue type
callerJointlyCompatibleSteamPipeIdsCaller jointly compatible steam pipe idslist of string
json
{
  "input": {
    "callerSteamPipeIds": [
      "a",
      "b"
    ],
    "callerVerifiedMatchedSteamMassCapacityKgHour": [
      100,
      200
    ],
    "callerVerifiedMatchedSteamVelocityMSecond": [
      20,
      40
    ],
    "observedRequiredSteamKgHour": 150,
    "callerMaximumSteamVelocityMSecond": 30
  },
  "output": {
    "callerJointlyCompatibleSteamPipeIds": []
  }
}

Limitations and assumptions

No steam-property calculation, condensate behavior or pressure-loss design is supplied.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Plumbing Steam Trap Capacity Calculator: Steam-trap capacity must exceed condensate load with an explicit selection multiplier. Rated capacities must match differential pressure and condensate conditions. For a complementary task, use Plumbing Compressed Air Pipe Sizing Calculator: Compressed-air pipe candidates need enough actual-volume flow with acceptable pressure loss. Free-air conversion must be done separately.

References

  1. Plumbing Steam Pipe Sizing Calculator — tool.io

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