Vapour-compression multi-stage evaporation, usually tied to a waste-heat source. Catalogued for orientation; EngiMetric models no MED thermal or performance figures.
- Information only
- Not quantitatively modeled
Waste-Heat Desalination
Desalination driven by low-grade heat already available on site, typically from power generation or process exhaust. Orientation only.
Overview
Desalination driven by low-grade heat already available on site, typically from power generation or process exhaust. Orientation only.
How it works
Separation mechanism and feed window. As for the underlying thermal cycle.
What the process produces. Very low TDS distillate.
Energy. Low-grade recovered heat. The economics depend almost entirely on the heat being otherwise wasted.
Process sequence
Where this technology normally sits in a treatment train. The steps either side of it are documented in the Library as separate entries.
- Waste-heat source
- Heat exchanger
- Thermal desalination cycle
- Distillate
Typical applications
- Power stations with low-temperature cooling water
- Industrial sites with waste exhaust heat
- Refineries and petrochemical complexes
Main equipment
- Waste-heat exchanger
- Brine heater
- Thermal desalination cycle
- Circulation pumps
Key design parameters
The parameters an engineer actually sets, and why each one drives the design. EngiMetric does not assume any of them.
| Parameter | Why it matters |
|---|---|
| Available waste-heat flow and temperature | The entire feasibility case. |
| Temperature approach | How much of the available heat is actually recoverable. |
| Duty matches the heat source | The cycle must run at the availability of the source, not its peak. |
Advantages
- Very low specific power where waste heat exists.
- Mature concept on Gulf-coast and industrial sites.
Limitations
- Only viable where waste heat genuinely exists.
- Site-bound; not a transferable product.
Engineering considerations
- EngiMetric does not compute heat availability or thermal economy. It states no energy figure for this technology.
Status and EngiMetric support
Industry maturity and commercial status describe the technology itself. EngiMetric support and quantitative modeling describe what this platform does with it — and those two are read from the engineering registry at build time, so they cannot drift from the code.
- Engineering maturity
- Mature How established the technology is in the industry. Not an EngiMetric claim.
- Commercial status
- Commercial Where the technology sits in the market. Not an EngiMetric claim.
- EngiMetric support
- Information only No execution-registry entry exists, so no support is claimed.
- Design engine
- No Whether the Plant Designer can carry this as a configured process step.
- Quantitative modeling
- Not quantitatively modeled No engine exists, so EngiMetric states no figure for this technology.
Not quantitatively modeled. EngiMetric publishes no energy, recovery, flux, capacity or cost figure for this technology. Every quantitative statement on this page comes from your own inputs or from an external source, never from a calculation on this platform.
Because no EngiMetric engine exists for Waste-Heat Desalination, this page deliberately contains no calculated figures. Any energy, recovery, flux or capacity value you need must come from a supplier, a published plant or your own analysis.