srvo

Salt  Desalination R&D test bed

Tabletop Desalinator

A small-scale, industrial-grade desalination test bed that benchmarks vacuum distillation against vapor recompression on shared utilities.

Wastewater TreatmentIndustrial GasChemical
2
desalination technologies benchmarked side by side
Process diagram of the vacuum-distillation testbed: water heater, flash drum, demister, sight glass, condenser and chilled-water supply, with feedwater, freshwater and brine lines.

Challenge

Build a small-scale, industrial-grade desalination system around a novel powertrain focused on energy efficiency.

Approach

A Supply Unit distributes hot water, chilled water and saltwater through plumbing mains to a pair of testbeds on shared HVAC infrastructure. We compared heat-pump vacuum distillation against mechanical vapor recompression as the control group, and sourced flash-drum nozzles, demister media, heat-exchanger form factors and fouling-remediation devices for evaluation. A Control Unit logs data to a Node-RED application server. An Exhaust Unit with vacuum pumps and accumulator tanks generates vacuum and collects brine and condensate for analysis and closed-loop recycling.

Highlights

  • A pool saltwater filter simulates seawater across a range of salinity and temperature levels.
  • Third-party, peer-reviewed analytical models sized the heat-exchanger capacities.
  • Third-party Simulink models set specifications for high-cost components, reducing costs.
Ask an engineer