Co-generation plants

Power and Water Co-Generation

The desalination technologies are often linked with another large field of our activities, which are thermal power plants. In arid areas most power plant units are situated nearby the seashore using sea-water for cooling purposes as well as for fresh water preparation. The excessive heat from thermal power plants not used for power generation can be utilized as heat input for evaporation type desalination plants (MSF, MED), increasing the overall thermal efficiency. This process is called co-generation.

The energy transfer from the steam header of the power plant to the desalination plant must be carefully designed in order to optimize the efficiencies of both plant components. This task can be performed efficiently by Lahmeyer having extensive experience in both fields of plant engineering.

Power and Heat Co-Generation (District Heating)

If required, a part of the steam produced by the power plant may be extracted from the water steam cycle at suitable pressure level and transferred to a local district heating system for supply of heat to connected city buildings or industrial facilities. Typically the condensate from the district heating facilities is returned to the water steam cycle of the power plant after being purified in a condensate polishing plant. Alternatively the extracted steam may be used to generate hot water in dedicated heat exchangers for supply of the connected district heating system.

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