Steam turbine generator cooling air circulation

How long does it take to cool a steam turbine?

can take up to 3 days. The forced-air cooling is based on the counter air flow (see Fig.2), where the cooling air enters the steam turbine from the low pressure section. The blower skid is connected to the turbine casing via a flexible hose, which can be connected to

What is a steam turbine cycle design?

Viewed from a steam turbine perspective, the cycle design will determine unit rating, plant operating envelope, and steam extraction requirements.

How do steam turbines work?

Modern steam turbines have an electronic governor that uses sensors to monitor the speed by examining the rotor teeth. To design a more efficient steam turbine, a casing with proper nozzles and vanes to confine the steam and valves to control the admission of steam to the nozzles should be used.

How do steam turbine options affect cycle and system design?

Since these products are often highly structured (at least in smaller industrial sizes), the available steam turbine options may have a significant influence on cycle and system design. Depending on the specific process steam needs of the customer it may be possible to avoid controlled extractions on the steam turbine.

What factors influence the design of a steam turbine?

Plant operability considerations are another key factor in design of the steam cycle, steam turbine, and power plant at large. Steam generation pressure and temperature selection are influenced not only by cost and performance but also by the desired load range and expected operating profile (particularly in the case of cogeneration).

What is a steam turbine drive?

Steam turbine drives are equipped with throttling valves or nozzle governors to modulate steam flow and achieve variable speed operation. The steam turbine drive is capable of serving the same function as a variable speed drive electric motor driver. Steam turbines can usually operate across a broad speed range and do not fail when overloaded.