Water • Ro Microsoft Excel (.xlsx)
RO Energy & Operating Cost
Estimate membrane train energy use, specific power and operating cost per m³.
Download Excel Workbook (.xlsx)
Version 0.1
What this workbook is
A real, downloadable Microsoft Excel workbook — not a rendered demo. Every sheet is built around a single engineering method: inputs in one place, calculated results and a PASS / WARN / FAIL check sheet, with the method, sources and assumptions recorded next to the numbers. Open it in Excel, Sheets or LibreOffice, change the inputs, and the workbook recalculates.
- Light cells are user-entered inputs on the Inputs sheet.
- Dark cells are calculated automatically and are not editable.
- The method and sources for every calculation are listed below and inside the workbook.
What you enter
- ✓Feed flow
- ✓Feed pressure
- ✓Pump/motor efficiencies
- ✓Tarriff & chemical costs
What it calculates
- ✓Hydraulic power
- ✓SEC (kWh/m³)
- ✓Annual energy cost
- ✓OPEX per m³
Method
Phyd = دپgQH/η; SEC = kWh per m³; OPEX sum of energy, chemical, membrane-replacement components
Sources
- [1] EngiMetric RO energy & opex engines (verified)
Inside the workbook
CoverTitle, scope and revision block
SummaryCore inputs and headline results
InputsYour project values (light cells)
CalculationsStep-by-step working sheet (dark cells)
OutputsReadback of results for reporting
ChecksPASS / WARN / FAIL against stated limits
ReferenceSources for each calculation
Notes & AssumptionsScope, exclusions and stated limits