Engineering Calculation Module

Coagulation Rapid Mix Tank
Design Calculation

Design and evaluate a cylindrical coagulation rapid-mix tank using a structured Excel workflow for hydraulic sizing, tank geometry, mixing-power estimation, impeller screening, rotational speed, and design review.

Excel Workbook Automatic Impeller Screening Built-in Design Checks
AIDIA
Coagulation Rapid Mix Tank Design Calculation
Dashboard Preview
Dimensions & Volume
ParameterValueUnit
Tank diameter0.946m
Water depth0.946m
Freeboard0.450m
Liquid volume0.666m³
Hydraulic & Mixing
ParameterValueUnit
Detention time5.0s
Velocity gradient600s⁻¹
Motor power0.455kW
Geometry statusPASS
InletOutlet Rapid Mix Tank
▦
Excel WorkbookStructured engineering workbook with editable project inputs.
⚙
Automatic ScreeningCandidate impeller sizes are screened against geometry checks.
✓
Built-in ChecksKey sizing and geometry results are flagged for review.
▤
Review-Ready OutputTank sizing and mixing outputs summarized for engineering review.

What This Module Helps You Design

Use one consistent workflow to size and evaluate a cylindrical rapid-mix tank for coagulation. The module organizes hydraulic sizing, tank geometry, power estimation, impeller screening, rotational-speed calculation, and design checks in one workbook.

◎

Tank Sizing

Determine liquid volume, tank diameter, water depth, freeboard, and total depth.

⚡

Mixing Evaluation

Estimate water power and required motor power for the target mixing intensity.

↔

Impeller Screening

Screen candidate impeller diameters and calculate the operating rotational speed.

Calculation Coverage

Preliminary engineering calculations from design inputs through rapid-mix tank sizing and selected mixer configuration.

InletOutlet Rapid Mix Tank
▤

Design Basis

Flow rate, detention time, velocity gradient, water properties, geometry ratios, and mixer assumptions.

✓

Design Criteria

Automatic review of key hydraulic, dimensional, and impeller-geometry parameters.

◯

Hydraulic Sizing

Calculate liquid volume, tank diameter, liquid depth, plan area, and total depth.

⚡

Mixing Power

Estimate required water power and motor input for the target mixing intensity.

↔

Impeller Screening

Evaluate candidate diameters against D/T, H/D, H/T, and B/D geometry checks.

↻

Rotational Speed

Calculate required impeller speed in rev/s and rpm for the selected configuration.

D/T

Geometry Checks

Make impeller-to-tank geometry relationships visible for engineering review.

▥

Output Summary

Summarize tank dimensions, power requirement, selected impeller, and operating speed.

Engineering Workflow

A structured path from project data to a reviewable preliminary rapid-mix tank design.

1
▤

Design Input

Enter flow, mixing targets, water properties, and tank assumptions.

2
◯

Hydraulic Sizing

Calculate liquid volume and cylindrical tank geometry.

3
⚡

Mixing Power

Determine water power and motor power requirement.

4
↔

Impeller Screening

Screen candidate diameters against geometry checks.

5
↻

Rotational Speed

Calculate the operating speed for the selected impeller.

6
▦

Selected Design

Summarize dimensions, power, speed, and review status.

Workbook Preview

A familiar Excel interface with organized calculations and a compact design dashboard. Detailed internal formulas are not exposed in the public preview.

AIDIA
Coagulation Rapid Mix Tank Design — Dashboard Preview
Public Preview
Dimensions & Volume
ParameterValueUnit
Tank diameter0.946m
Water depth0.946m
Total tank depth1.396m
Impeller diameter0.300m
Liquid volume0.666m³
Hydraulic & Mixing Parameters
ParameterValueUnit
Design flow11,500m³/d
Detention time5.0s
Velocity gradient600s⁻¹
Motor power0.455kW
Rotational speed192rpm
InletOutlet Rapid Mix Tank

Dashboard Sheet

Summarizes tank dimensions, liquid volume, impeller arrangement, hydraulic parameters, motor power, and operating speed.

Designed for quick review

Key design information is grouped so another engineer can understand the proposed rapid-mix configuration quickly.

Linked to the calculation

Dashboard outputs are linked directly to the calculation workflow and update with the design inputs.

Calculation Sheet — Public Preview
Description
Symbol
Value
Unit
Required liquid volume
V
Calculated
m³
Equivalent tank diameter
T
Calculated
m
Total tank depth
Htotal
Calculated
m
Required motor power
Pmotor
Calculated
kW
Selected impeller diameter
D
Screened
m
Rotational speed
N
Calculated
rpm

Calculation Sheet

Shows the engineering sequence from hydraulic sizing through mixing power, impeller screening, and rotational-speed calculation.

Traceable workflow

Inputs, calculations, notes, and outputs remain organized in a consistent engineering sequence.

Design Criteria & Geometry Checks — Public Preview
Parameter
Result
Review Basis
Status
Detention time
Within target
Internal criterion
PASS
Velocity gradient
Within target
Internal criterion
PASS
Tank volume
Acceptable
Internal criterion
PASS
Impeller geometry
Screened
Geometry checks
PASS
Final configuration
Review complete
Engineering review
REVIEW

Built-in design checks

Important rapid-mix and geometry parameters are compared against the workbook's internal review logic.

Protected product know-how

The website demonstrates the check structure without publishing the complete engineering methodology.

Designed for Engineering Review

A calculation should be easy for the next engineer to understand, trace, and review.

DescriptionSymbolCalculationUnitNotes
Design flow rateQdProject inputm³/dDesign-basis data
Required liquid volumeVCalculated in workbookm³Hydraulic rapid-mix volume
Tank diameterTCalculated in workbookmCylindrical tank sizing
Motor powerPmotorCalculated in workbookkWBased on transfer efficiency
Impeller diameterDAutomatic screeningmSelected candidate size
Rotational speedNCalculated in workbookrpmOperating speed

No Black Box

Know where the result comes from without publishing the full methodology on the website.

▤

Inputs

  • Design flow
  • Mixing targets
  • Tank ratios
  • Impeller type
→
⚙

Calculation

  • Hydraulic sizing
  • Power estimation
  • Impeller screening
  • Speed calculation
→
▦

Output

  • Tank dimensions
  • Motor power
  • Selected impeller
  • Operating speed

Built-in Design Checks

Not just calculated. Checked. Detailed criteria remain inside the purchased workbook.

ParameterExample ResultReview BasisStatusNotes
Rapid-mix detention timeWithin targetAdopted internal criterionPASSAcceptable
Velocity gradientWithin targetAdopted internal criterionPASSAcceptable
Tank volumeWithin limitAdopted internal criterionPASSAcceptable
Impeller geometry ratiosScreenedGeometry checksPASSSelected candidate
Final mixer configurationReview completeEngineering screeningREVIEWConfirm vendor-specific details

What's Included

A standardized AIDIA workbook structure for calculation, documentation, and engineering review.

▤

READ ME

Purpose, scope, assumptions, instructions, and responsibility notes.

□

Cover

Project identity, document information, and revision fields.

▦

Calculation

Hydraulic sizing, power estimation, screening, speed calculation, and outputs.

▥

Dashboard

General arrangement and key design parameters at a glance.

A/B

Abbreviations

Engineering symbols, terminology, and units used in the module.

AIDIA Helps With

  • Structured preliminary tank sizing
  • Mixing power and motor-power estimation
  • Impeller geometry screening
  • Rotational-speed calculation
  • Documentation of design outputs

AIDIA Does Not Replace

  • Project-specific engineering judgement
  • Regulatory or client-specific requirements
  • Manufacturer confirmation
  • Final mechanical equipment selection
  • Professional engineering approval

Related Modules

Explore other AIDIA water and wastewater calculation modules.

Start with a structured rapid-mix tank calculation.

Bring hydraulic sizing, mixing-power evaluation, impeller screening, and design review into one consistent AIDIA Excel workflow.