AIDIA
Engineering Calculation System

Engineering calculations shouldn’t start from scratch every time.

AIDIA helps engineers perform common water and wastewater design calculations through structured Excel modules with transparent formulas, engineering criteria, automated checks, and review-ready outputs.

Explore Calculation Modules → Try Free Calculators ↗ See How AIDIA Works
Transparent Formulas
Design Criteria
Built-in Checks
Review-Ready Outputs
Coagulation Rapid Mix Tank Design Calculation workbook preview

The calculation is often not the hardest part.

Much of an engineer’s time is spent around the calculation — finding references, tracing formulas, checking criteria, and keeping workbooks consistent.

Finding design basis

Collecting flow, water quality and project requirements.

Searching criteria

Looking through references and design guidelines.

Rebuilding old sheets

Copying and modifying previous project workbooks.

Tracing formulas

Understanding how outputs were actually calculated.

Reviewing inconsistent workbooks

Different formats and logic across projects.

Repeating manual checks

Rechecking calculations and criteria every time.

Built from the kind of spreadsheets we wished we had.

Engineering spreadsheets often grow from old project files, textbook equations and repeated revisions. They work, but over time they can become difficult to trace, standardize and share.

AIDIA was created to turn that scattered engineering knowledge into a more structured workflow — with consistent layouts, clear formulas, built-in criteria checks, and outputs that are easier to review and reuse.

Textbook equations Core equations and standard design methods.
Project experience Practical engineering judgement from real work.
Design criteria Target ranges, checks, and acceptance limits.
→
AIDIA structured workflow
InputCalculationCriteriaChecksOutput

Design Inputs

Transparent Calculation

Q / SOR → Area
Headloss → Check

Design Checks

PASSCHECK

Review-Ready Output

Structured tablesConsistent layoutReusable workflow
A more structured and consistent engineering workflow.
How AIDIA Works

A structured workflow from input to engineering output.

1

Design Input

Enter project data and design parameters.

2

Engineering Calculation

Apply transparent formulas.

3

Design Criteria

Check against relevant standards.

4

Design Check

Automatic checks and flagging.

5

Equipment Sizing

Calculate and size key equipment.

6

Engineering Output

Generate review-ready outputs.

Inside Every AIDIA Module

Click each sheet tab to preview the real workbook structure. The screenshots below are taken from the Coagulation Rapid Mix Tank Design module.

Coagulation Rapid Mix Tank workbook calculation sheet preview
No Black Box

Know how the result was calculated.

Formula Trace Example: Rapid-Mix Tank Volume

Inputs

Qd = 11,500 m³/d
t = 5.0 s
→

Formula

V = (Qd × t) / 86,400
(11,500 × 5.0) / 86,400
→

Output

0.666 m³
Required liquid volume
  • ✓ Inputs remain visible
  • ✓ Formulas remain traceable
  • ✓ Design criteria are identified
  • ✓ Results remain reviewable
⚖ AIDIA supports engineering judgement — it does not replace it.

Spend less time rebuilding spreadsheets.
Spend more time engineering.

Start with a structured calculation framework instead of rebuilding the same logic for every project.

Free Engineering Tools

Try the Calculations Before Exploring the Workbook.

Start with preliminary sizing in the browser. Each calculator explains its assumptions and shows which detailed engineering checks are included in the Excel workbook.

Horizontal-Flow Sedimentation

Settling surface area and theoretical basin dimensions.

Try Free Calculator

No purchase required to use these preliminary calculators. Results are for engineering support only and do not replace detailed checks, professional judgement or vendor confirmation.

Calculation Library

Modular tools for water and wastewater design.

●

Utilities & Disinfection

  • Cooling TowerIn Development
  • DeaeratorIn Development
  • Chlorine DemandIn Development
  • UV DisinfectionIn Development
□

Process Selection & Engineering Tools

  • Treatment Process DeterminationIn Development
  • WWTP EvaluationIn Development
  • Cycle AnalysisIn Development

Article & Ebook

Explore engineering articles, technical guides, and upcoming ebooks from AIDIA.

Understanding Surface Overflow Rate

Principles, calculations, and design considerations for sedimentation basins.

Read more →

Gravity Thickener Design Criteria

Design principles, evaluation stages, and engineering considerations for gravity thickener selection.

Read more →

How to Select Flocculation G-Value

Mixing intensity, floc development, tapered staging, and practical selection considerations.

Read more →

Hydraulic Retention Time Explained

Residence time, effective tank volume, hydraulic distribution, and practical design considerations.

Read more →
More Articles & Ebooks

Where AIDIA fits in your work.

⚙

Process Engineer

Design and evaluate treatment processes.

♙

Consultant

Prepare calculations for client projects.

▱

Freelancer

Deliver consistent, professional workbooks.

◇

Junior Engineer

Learn and apply standard methods.

◉

Engineering Team

Standardize calculations across projects.

AIDIA helps with

  • Structured calculations
  • Equipment sizing
  • Criteria checking
  • Documentation
  • Repeatable workflows

AIDIA does not replace

  • Engineering judgement
  • Project-specific decisions
  • Regulatory review
  • Vendor confirmation
  • Professional approval

A Growing Engineering System

From calculation modules to engineering system.

▤Design Basis
◫Mass Balance
⚙Process Design
▦Equipment Calculation
▤Process Datasheet
▣Engineering Report

AIDIA is being developed as a modular engineering ecosystem, with calculation modules as the foundation for a more complete set of engineering tools.

Frequently Asked Questions

Key questions about how AIDIA modules are intended to be used.

Each product page outlines its calculation scope, design inputs, checks and workbook previews. Sheet contents differ by module; review the specific product page before purchasing.

AIDIA focuses on traceable calculations and visible engineering assumptions. The included formula structure, design criteria and references depend on the individual workbook. Check its preview and calculation coverage for details.

Products are supplied as Excel workbooks. Compatibility may differ across Excel desktop, web, mobile and alternative spreadsheet applications. If a particular Excel version or device is essential, contact support before purchasing for module-specific confirmation.

AIDIA workbooks support engineering calculations, but permission for commercial, team or multi-user use must be confirmed under the applicable product license. Read the usage notice or request written clarification before purchase.

No. Redistribution, resale, rebranding and sharing of AIDIA workbooks are not permitted. For team or organizational needs, contact AIDIA to clarify authorization.

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Email aidia.engineering@gmail.com with the module name, checkout platform and order reference if available. Do not share payment-card numbers or passwords. Visit Support.

Review the product and checkout provider's terms before paying. Refund or cancellation eligibility is not stated as a blanket policy on this website; contact AIDIA with the order details to request clarification. See checkout guidance.

No. AIDIA supports engineering calculations but does not replace professional judgement, project requirements, applicable regulations, design review or manufacturer/vendor confirmation.