A hybrid wet-dry cooling system can be designed for a large combined-cycle power plant.

A well-designed hybrid cooling system will provide reasonable net generation year-round, while using substantially less water than a conventional wet cooling tower. The optimum design for the hybrid system depends upon climate at the site, the price of power, and the price of water. These factors vary on a seasonal basis.

Two hypothetical power plants are modeled, using state-of-the-art steam turbines and hybrid cooling systems. The plants are designed for water-constrained sites incorporating typical weather data, power prices, and water prices.

The principles for economic designs of hybrid cooling systems are demonstrated.

This content is only available via PDF.
You do not currently have access to this content.