22 May 2012

Organisation Mission Certificates Downloads In the press Organogram History Contact Language čeština Deutsch English Nederlands русский язык العربية

Power

Gas

Oil

Chemical

Air handling

Sustainability

Products

News

Process redesign in France

A good example of performance achieved in a district heating facility: a new Veolia power station required an air-cooled vacuum condenser and a district heating heat exchanger that could both condense exhaust steam from the same turbine in parallel.

Controlling the steam flow to either the district heating heat exchanger (when hot water is required) or the air-cooled condenser (when a vacuum is required to generate more electricity) is a difficult process. One way to do this is to install pressure-controlled butterfly valves in the main steam ducts and use separate condensate packages (both designed for the same task) for both systems.

Bronswerk believed there should be a simpler solution, and started redesigning the system so that it would require less equipment, less maintenance and achieve higher efficiency while being easier to control.

The solution lay in a simplified PFD, in which the turbine back pressure is controlled by the air-cooled condenser, while the water-cooled condenser is controlled by its own LMTD. Although this is a well-known method, it had never before been used in this context. Not only did this remove the need for a butterfly control valve, but also the need for two condensate packages – reducing investment costs, maintenance and energy consumption in this area by 50%! Veolia adopted the analysis and awarded Bronswerk the order to realise the entire system.

As of October 2011, the new system is running smoothly in Veolia’s power station in France.

Cofely Combined Heat and Power plant

Cofely has awarded Bronswerk Heat Transfer an order to provide the air condenser and vacuum system for its biomass combined heat and power plant at Forbach, France. Included in the scope of work are the design, manufacture, supply, installation, commissioning and testing of the air condenser, bypass, condensate and vacuum systems.

The new biomass CHP plant will be serving the surrounding region, with a focus on providing heat to the local district heating of the town of Forbach and exporting up to 6.4 MW of electric power to the grid. The plant utilises cutting-edge technology to ensure the highest output of power at the lowest emission levels. Biomass will be used as fuel for the boiler. The plant has been designed to minimise parasitic energy consumption. In addition, its impact in terms of environmental noise will be very low, as the nearest houses are located some 140 m from the site.

Bronswerk will be supplying extremely efficient technology and systems. The air-cooled condenser will be equipped with ultra-efficient Whizz-Wheel® fans. This results in a very silent installation with low power consumption levels, combined with a compact and reliable condenser design. The motors of the fans and condensate pumps are speed-controlled, leading to even lower power consumption levels during reduced operation of the condenser package. Special precautions will be taken to enable the condenser to operate at minimum steam flow in winter, while supplying more power to the district heating. The vacuum unit has been designed to evacuate and maintain the condenser vacuum with a low amount of driving steam. All in all, this ensures that the plant will operate efficiently in a wide range of operational scenarios.

Passed!

Last month another two of our sales engineers have successfully completed the course in process optimization. With this course we train our employees to be of even better service in coming up with and designing smart solutions. These solutions can either mean that we can optimize the processes the clients present to us. Or then can entail that, because of our process knowledge, in many cases we can present more efficient solutions; such as a product that uses less energy or has a lower weight. These kinds of solutions can realize enormous savings for the client in terms of the total project.

1/3

News Solutions & Cases Innovation Social Media Art of Technology

Sitemap

Hide

Contact

The Netherlands

Russia

Czech Republic







Question
		send

Stationsweg 22	P.O. Box 92	Phone: +31 33 24 72 500
3862 CG Nijkerk	3860 AB Nijkerk	Fax: +31 33 24 52 338
The Netherlands	The Netherlands	Email: info@bronswerk.com

Smolenskaya Square 3	Phone: +7 495 775 1060
121099 Moscow	Fax: +7 495 775 1061
Russia	Email: info@bronswerk.ru

Děčínská 288	P.O. Box 14	Phone: +420 412 590 511
407 22 Benešov nad Ploučnicí	407 22 Benešov nad Ploučnicí	Fax: +420 412 586 340
Czech Republic	Czech Republic	Email: info@bronswerk.cz