This partial calculator applies two entered area factors to a selected input pressure under an ideal static force-balance assumption. It reports the selected area ratio, ideal output pressure and arithmetic pressure increase; it does not predict an intensifier, cotton press, ram force, seal limit or bale density.
Steam Cotton Press - Selected Ideal Pressure-Ratio Ledger
Explore selected ideal pressure-ratio arithmetic from entered pressure and relative-area factors.
Equation Used
- Input pressure and both relative-area factors are entered values.
- The relationship assumes ideal static equal axial force on the coupled members.
- No losses, leakage, flow or motion are included.
- The arithmetic increase is not a pressure rating or margin.
- Press geometry, cotton compaction, structure and safety are excluded.
The secondary figure is an abstract relative-area and pressure ledger, not an intensifier or press drawing.
Selected ideal pressure-ratio ledger
For an ideal coupled pair with equal transmitted axial force, P_in A_large=P_out A_small, so P_out=P_in(A_large/A_small). The factors are entered relative areas; no piston dimensions or losses are inferred.
What the calculator determines
Use it to inspect ideal pressure-ratio arithmetic from selected values. It cannot establish achievable pressure, flow, force, cycle time, material compaction or equipment suitability.
Selected relationships
R_A=A_large/A_small; P_out,ideal=P_in R_A; arithmetic increase=P_out,ideal-P_in.
Selected-input example
At selected input pressure 800 psi and entered area factors 5 and 1, the selected area ratio is 5, ideal output pressure is 4,000 psi and arithmetic increase is 3,200 psi.
Not a press-performance model
Piston dimensions, force balance details, seals, friction, leakage, pressure drop, compressibility, flow, stroke, structural limits, ram area, cotton behavior, controls and safety are excluded.
Questions
Is the ideal output pressure achievable?
Not necessarily. The result contains no losses, flow or mechanical limits.
Is 4,000 psi a validated seal limit?
No. The unsupported fixed margin has been removed.
Does this predict cotton compression?
No. No ram area, bale geometry or material model is present.
Authoritative reference
- U.S. Department of Energy Fundamentals Handbook, Fluid Flow — gives P=F/A and Pascal's law for pressure applied to confined fluid.
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