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OSiRIS

On-Site water Reuse Instant-Simulator

Simulate and evaluate the effect of on-site water reuse interventions on energy use and water and pollutant flows in a household, building, or community!

Dynamic scheme

Simulation model features:

  • High temporal resolution, enabled by diurnal water usage patterns

    Diurnal patterns

  • Rapid simulation of C++ based model: < 1 min for 10 years @ 15 min resolution (depends on hardware platform)

  • High flexibility

    • From centralized to extremely decentralized: direct use of city water, selection of installed tanks and treatments

Fully centralized Rainwater use and individual treatment and infiltration of wastewater Fully decentralized

  • Scalable from single household to district level (e.g. weighted rain correction factor for roads vs. roofs, increased pump energy for greater distances,…)

  • Water and pollutant balance: incoming precipitation, storage tanks, usage in household, and infiltration, sewer, or collection by truck

  • Simplified treatment for water reuse simulation based on treatment "specsheet": recovery, energy use, design flow, rejection (membranes), degradation

    Treatment specsheet

  • Renewable energy simulation for water pumping + treatments

    Energy use

    • Energy use is prioritized between demanding treatments
    • Battery can be used in conjunction with solar panels
    • Grid electricity is used as back-up
    • Built-in solar insolation, cloud, and photovoltaic models if data is unavailable
  • Simulation of garden irrigation based on solar irradiance and precipitation

Standalone app with user interface

  • Scenario framework: Create different settings combinations or load from a file, simulate in bulk, and save settings, scheme, KPI, and data to files

    Scenario Scenario
  • Dynamic scheme (see above) automatically adapts to user settings
  • High modifiability, easily change up to 112 model variables, for example:
    • Which water quality to reuse and for which applications
    • Which tanks and treatments to install (including volumes, specifications,...)
    • What to do with excess wastewater
  • Built-in key performance indicators (KPI) for scenario analysis:
    • Water independence on import, water independence on export, circularity, local water recharge, drought tolerance, energy independence
    • Display KPI in graph (line or spider), choose which KPIs and which scenarios to display

      KPI line plot KPI spider plot
  • Evaluate simulation results in graphs for the volume and concentration of tanks, renewable and grid energy use, and battery capacity

Example data and results included

View the manual for detailed walktrough of app and example workflow

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