Invented by EGI in Hungary in the early 1950s, Heller System® has gained worldwide recognition as the ultimate dry cooling choice. Heller Indirect Dry Cooling System is applicable for the cold end of all kinds of steam cycles including fossil fired, nuclear, solar and biomass power plants.
Heller Indirect Dry Cooling Systems include a water-cooled condenser, circulating machine groups, circulating water mains and a dry cooling tower accommodating Forgó-type water-to-air heat exchangers. The water-cooled condenser can either be DC Jet or Surface Condenser type.
Condensation of turbine exhaust steam takes place in a water-cooled condenser while heat rejection takes place in a cooling tower. The system is practically insensitive to wind gusts owing to the thermal inertia of the large, one time water fill of the cooling circuit. Location of the cooling tower is unconstrained; it need not be in the vicinity of the steam turbine. Solutions are available for climatic extremes (extreme cold & extreme hot).
- Lowest vacuum space among dry power cooling systems makes it very suitable for fast start-up power plants.
- Provides ultimate resistance to freezing even in partial load winter operation.
- Flexible site layout and arrangement.