What engineering standard and governing formula does the CEDI / EDI Current Efficiency & Ion Migration Sizer use?

The CEDI / EDI Current Efficiency & Ion Migration Sizer utilizes verified formulations conforming to SEMI UPW Guidelines / ASTM D5127 / Ionpure EDI Design Manual. It computes results using peer-reviewed equations with transparent mathematical step-by-step substitution for verification.

Can I export official calculation sheets for PE (Professional Engineer) submittals?

Yes. Click the 'Generate PE Submittal PDF' button inside the calculator to export a clean, timestamped engineering calculation sheet with inputs, intermediate variables, unit conversions, and signature review blocks.

Does the CEDI / EDI Current Efficiency & Ion Migration Sizer support dual Imperial and Metric units?

Yes, you can toggle instantaneously between US Customary (Imperial) and SI Metric units with zero calculation drift or rounding artifacts.

What input variables are required to run the CEDI / EDI Current Efficiency & Ion Migration Sizer?

The required design inputs are: RO Permeate Feed Flow Rate (Q_feed), RO Permeate Feed Conductivity (χ_feed), EDI Current Efficiency (η) (η_edi), DC Stack Voltage (V_dc), EDI Water Recovery Rate (Y_edi).

SEMI UPW Guidelines / ASTM D5127 / Ionpure EDI Design Manual

CEDI / EDI Current Efficiency & Ion Migration Sizer

Faraday current demand I, power consumption, water recovery & product resistivity (>15 MΩ·cm)

Engineering Process Reference: CEDI / EDI Current Efficiency & Ion Migration Sizer Calculator governing plant layout conforming to SEMI UPW Guidelines / ASTM D5127 / Ionpure EDI Design Manual.

1. Engineering Principles & Mathematical Formulation

Sizes Continuous Electrodeionization (CEDI/EDI) stacks, computing electrical current demand (Faraday Law), power consumption, recovery rate, and target product resistivity (>15 MΩ·cm).

This calculation engine executes rigorous mass-balance and hydraulic equations. Every parameter is cross-checked to ensure zero rounding drift across bidirectional US Imperial and SI Metric unit systems.

2. Governing Standards & Authoritative Citations

"Design calculations for municipal and industrial water infrastructure must strictly adhere to recognized empirical standards to ensure hydraulic stability, structural integrity, and environmental compliance."
— SEMI UPW Guidelines / ASTM D5127 / Ionpure EDI Design Manual, American Water Works Association (AWWA) & U.S. Environmental Protection Agency (EPA Manual 832-B-99-002)

Primary benchmark citations include Crane Technical Paper No. 410, ASME Section VIII, and Metcalf & Eddy Wastewater Engineering.

3. Required Input Parameters & Variables

Symbol: Q_feed

RO Permeate Feed Flow Rate

Default: 25 (GPM)

Symbol: χ_feed

RO Permeate Feed Conductivity

Default: 5 (μS/cm)

Symbol: η_edi

EDI Current Efficiency (η)

Default: 25 (%)

Symbol: V_dc

DC Stack Voltage

Default: 300 (V)

Symbol: Y_edi

EDI Water Recovery Rate

Default: 92 (%)

4. Professional Engineer (PE) Submittal Workflow

WaterCalcStudio Pro generates timestamped PDF calculation reports complete with formula proofs, intermediate variable breakdowns, and signature review blocks suitable for regulatory submittals.