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LandWISE – Promoting sustainable land management

IRRIG8: Pressure and energy

IRRIG8 does not store your data or keep any records. Leaving or refreshing this page will delete all your data, so print reports and export the data or graphs if you want to save them.

Beta version: See disclaimer at foot of page

🔧 Irrigation System Calculator v1.2.1

Professional system analysis with pump efficiency, hydraulic analysis, design vs measured performance, and energy cost calculations

📋 Project Information

Farm & Property Details

Name of the farm or property being evaluated
Name of the property owner or manager
Property address or general location description

Evaluation Details

Name of the person conducting the evaluation
Company or organization conducting the evaluation
Date when the irrigation system evaluation was conducted
⚙️ Complete System Setup

Elevation Data (metres above sea level)

Elevation of pump centerline
Elevation at headworks/control point
Elevation at irrigation system inlet
Highest point in irrigated field
Lowest point in irrigated field

Pressure Measurements (kPa)

Pressure at pump inlet (negative for vacuum)
Pressure at pump outlet
Pressure after headworks/filters
Pressure at irrigation system inlet
Pressure at sprinkler/emitter level

System Specifications

Actual measured system flow rate
Internal diameter of main pipeline
Total length of main pipeline
Absolute roughness (0.0015 for PVC, 0.046 for steel)
Rated power of pump motor
Actual power consumption during operation
📊 Design vs Measured Performance Analysis

Design Specifications (from manufacturer or system design)

Original design or specified flow rate
Design pump head from specifications
Manufacturer specified pump efficiency
Design operating pressure for irrigation system
Motor efficiency from specifications

Manufacturer Pump Curve Data (Optional)

Flow rate from manufacturer pump curve
Head from manufacturer pump curve
Efficiency from manufacturer pump curve
🔧 Hydraulic System Analysis (2005 Code of Practice)
💰 Energy Consumption & Operating Costs
Cost per kilowatt-hour
Estimated annual irrigation hours
Cost per cubic metre of water
📊 Analysis Results & Professional Report

📊 Irrigation System Calculator v1.2.1

Complete the system setup and run design vs measured, hydraulic and energy analysis to see detailed results here.

Analysis Features:

  • Design vs Measured performance analysis with variance calculations
  • Flow and pressure variance calculations
  • Pump efficiency and headworks efficiency analysis
  • 2005 Code of Practice hydraulic efficiency calculations
  • Comprehensive energy cost analysis and operating efficiency
  • Professional recommendations for system optimization
  • Compatible with all irrigation system types

Online User Guide
Download User Guide

Developed for LandWISE by Dan Bloomer, Page Bloomer Associates

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  • Carbon Positive: Butternut Planting to Side Dressing
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  • Cyclone Gabrielle Research Symposium
  • Introducing Carys Luke, our Summer Intern
  • Soil Infiltration Calculator
  • MicroFarm Biodiversity Update
  • Irrigation System Testing
  • Carbon Positive: Butternut Planting
  • NZARM Conference 2025

RECENT POSTS

  • Cyclone Gabrielle Research Symposium
  • Biodiversity Strips Update
  • Carbon Positive: Butternuts
  • Carbon Positive: Butternut Planting to Side Dressing
  • Nitrate Levels on the MicroFarm

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