Desalination driven by low-grade heat already available on site, typically from power generation or process exhaust. Orientation only.
- Information only
- Not quantitatively modeled
Cogeneration CHP
Simultaneous generation of electricity and heat, where the heat is used by a thermal desalination cycle. Orientation only.
Overview
Simultaneous generation of electricity and heat, where the heat is used by a thermal desalination cycle. Orientation only.
How it works
Separation mechanism and feed window. As for the thermal cycle it serves.
What the process produces. Very low TDS distillate.
Energy. Fuel plus a heat-recovery credit. The desalination load can justify the plant that produces the heat.
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.
- Prime mover (turbine or engine)
- Electricity export
- Waste-heat recovery
- Thermal desalination
Typical applications
- Desalination co-located with power generation
- Industrial sites with a steam demand
Main equipment
- Gas turbine or reciprocating engine
- Generator
- Heat recovery steam generator
- Thermal desalination plant
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 |
|---|---|
| Power-to-heat ratio | Decides how much heat is available for the desalination duty. |
| Part-load operation | Desalination and generation rarely match at the same time. |
| Gas or fuel price | Often the dominant economic variable. |
Advantages
- Uses a high-efficiency fuel conversion.
- Aligns electricity and water demand.
Limitations
- Very high capital cost.
- Operationally complex.
- Only economic at large scale.
Engineering considerations
- EngiMetric does not model cogeneration, heat rate or power-to-heat ratio.
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
- Established 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 Cogeneration, 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.