Software shortens maintenance for Steam Turbines

May 13, 2013
Software shortens maintenance for Steam Turbines
Siemens developed a software that cools steam turbines more rapidly. This shortens the maintenance phase. An operator can bring a power plant back on line sooner. A revision interrupts the generation of electricity. Depending on the type of a steam turbine the software allows to shorten the cooling period from seven to ten days to two to four days. A gas turbine normally cools down in a single day.

Siemens developed a software that cools steam turbines more rapidly. This shortens the maintenance phase. An operator can bring a power plant back on line sooner. A revision interrupts the generation of electricity. Depending on the type of a steam turbine the software allows to shorten the cooling period from seven to ten days to two to four days. A gas turbine normally cools down in a single day.

Maintenance can only start if both turbines have cooled down completely. Siemens uses a faster cooling process for for some time, called "forced cooling". Until now, that has meant an enormous amount of work for the customer's maintenance personnel. The temperature and the rate of cooling had to be checked every 15 minutes. If necessary, a valve had to be adjusted manually to alter the amount of cooling air.

This process is also improved by the software. Working with turbine commissioning experts, steam turbine developers in Mülheim achieved that the cooling process is handled by the installed control system. The new program called "fast cooling" does not only shorten the maintenance period, it also simplifies the work to be done by avoiding about 290 manual procedures. This also helps to avoid procedures prone to errors. The "fast cooling" process was successfully tested in a combined cycle power plant in Germany. Now the experts want to further develop the software and establish it as standard equipment for this type of steam turbine. Alongside all future installations, this method could be applied to optimize about 250 existing facilities.

Explore further: Ambitious EU targets for renewable energies make economic sense

add to favorites email to friend print save as pdf

Related Stories

Efficiency record of combined cycle power plant

May 24, 2011

A new Siemens gas turbine operated in a combined cycle with a steam turbine in Irsching, Bavaria, has set a world record for efficiency, making it an outstanding example of green technology. The net efficiency ...

Innovative self-cooling, thermoelectric system developed

Apr 11, 2013

Spanish researchers at the UPNA/NUP-Public University of Navarre have produced a prototype of a self-cooling thermoelectric device that achieves "free" cooling of over 30ºC in devices that give off heat. It is a piece of ...

Power from waste heat cuts costs and emissions

Jun 11, 2012

A new development from Siemens makes it possible for operators of electric arc furnaces to obtain electricity from hot exhaust gases. Around 20 percent of the electricity required to melt steel scrap could ...

Lausward power plant to break three world records

Jul 16, 2012

Siemens is to build a combined cycle gas turbine power plant with an electrical output of 595 megawatts at the Lausward location in Düsseldorf. That's a new world record for a single combined cycle block. ...

Recommended for you

Should the Japanese give nuclear power another chance?

Oct 24, 2014

On September 9, 2014, the Japan Times reported an increasing number of suicides coming from the survivors of the March 2011 disaster. In Minami Soma Hospital, which is located 23 km away from the power plant, ...

UK wind power share shows record rise

Oct 24, 2014

The United Kingdom wind power production has been enjoying an upward trajectory, and on Tuesday wind power achieved a significant energy production milestone, reported Brooks Hays for UPI. High winds from Hurricane Gonzalo were the force behind wind turbines outproducing nuclear power ...

Global boom in hydropower expected this decade

Oct 24, 2014

An unprecedented boom in hydropower dam construction is underway, primarily in developing countries and emerging economies. While this is expected to double the global electricity production from hydropower, it could reduce ...

User comments : 0