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Normalized air · cycle rate · demand

Pneumatic air-demand budget

Inputs

User-entered normalized free-air demand per one completed device cycle; cylinder geometry and pressure are not derived.
User-entered repeated cycles per minute for each stated active device.
Positive whole count of devices sharing the same declared demand record.
Percent greater than 0 through 100 used only to scale stated repeated demand.
User-entered normalized reference flow for literal ratio arithmetic only; it is not a capacity rating or selection input.

Results

Literal aggregate active cycle rate

48

cycles/min
Literal average normalized air demand

57.6

NL/min
Declared reference supply flow

100

NL/min
Literal demand / reference-flow ratio

0.576

nactive = ncycle·z·D/100; Qavg = qcycle·nactive; ratio = Qavg/Qref

A first-pass number, not a code check, certification, or approval. Read the method and its limits below. What this is and is not.

Nearby: Trapezoidal motion · Reflected inertia · Pneumatic cylinder force · Clamp-force transfer

Method

Formula, when it applies, and when it does not

Aggregate normalized air demand per cycle, cycle rate, active-device count, and duty fraction into average air demand and a reference-flow ratio.

nactive = ncycle·z·D/100; Qavg = qcycle·nactive; ratio = Qavg/Qref

When

  • User-entered normalized air per cycle
  • Declared repeated cycle rate
  • Equal stated device demand
  • Declared duty fraction

Don’t

  • This aggregates only user-declared normalized air demand, cycle rate, active-device count, and active-time fraction. It does not derive cylinder consumption; select or size a compressor, FRL, tubing, valve, or vacuum generator; model pressure-drop networks, air storage, leaks, duty transients, compressor curves, air quality, capacity, safety, suitability, or approval.
SMC air-consumption and required-flow guidance