Efficient operation with modular Bosch technology

Preserves manufacturer saves 40,000 euros per year in energy costs

(PresseBox) ( Gunzenhausen, )
Following an energy analysis in 2012, Valenzi GmbH & Co. KG from Suderburg in the Lower Saxony region of Germany decided to replace its steam supply. A complete system from Bosch was used, which could be matched exactly to the customer's requirements thanks to the numerous modules available. The manufacturer of forest fruit preserves expects an energy saving from the new system of around 40,000 euros per year. The CO2 emissions are also reduced by approximately 300 tons.

The modular design of the Bosch system ensures energy-optimised boiler operation. The existing boilers had been in operation for up to 31 years and were replaced with two modern UL-S type steam boilers with speed-controlled natural gas firing systems, each with an output of 5,000 kg/h. The company primarily uses steam to preserve mushrooms and refine wild berries and soup ingredients. The second boiler is used as a backup and to cover peak loads. Integrated economisers make efficient use of the energy from the hot boiler flue gases to heat the feed water. The boiler efficiency increases by 4.8 per cent and fuel consumption decreases by the same proportion.

Water treatment components provide optimum feed water quality. The WTM water treatment plant produces softened make-up water. To reduce susceptibility to corrosion, thermal deaeration is performed after the softening process via the WSM-V water service module. The water is heated to 103 degrees Celsius, causing the gases contained in the water to be released. Using the compact EHB heat recovery module, thermal energy from the hot desalted water is used to preheat the feed water. This leads to an increase in efficiency and a reduction in fuel, cooling water and waste water costs.

In addition, the system is fitted with a CSM condensate service module. The module collects and stores accumulated condensate and channels it back to the water service module. The lower demand for make-up water reduces water and energy consumption.

The intuitive touch-screen BCO/SCO controls make it easy to operate and adjust the boilers and system. Triggered by the push of a button or an external request signal, the start-up and shut-down processes for the steam boilers are performed automatically using the integrated SUC start-up, standby and shut-down control. The sequence control applies the consumption-optimised operating mode for the multi-boiler system. The steam boilers are kept warm by means of a heating coil built into the end of the boiler, and this ensures that there is rapid availability.

The modular design of the Bosch boilers and components meant that effort for planning and installation could be kept low. Planning office Westfalia Wärmetechnik from Rödinghausen and plant construction company AME-Technik from Hamelin were commissioned to complete this work. The operator benefits from the increased degree of automation of the economically and ecologically optimised energy generation system. In addition to the new boiler system, further measures such as waste heat utilisation in the compressors and cold stores improve Valenzi's energy consumption further.

The Bosch Group is a leading global supplier of technology and services. In fiscal 2012, its roughly 306,000 associates generated sales of 52.5 billion euros. Since the beginning of 2013, its operations have been divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 360 subsidiaries and regional companies in some 50 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent some 4.8 billion euros for research and development in 2012, and applied for nearly 4,800 patents worldwide. The Bosch Group's products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is "Invented for life."

Additional information is available online at www.bosch.com, www.bosch-press.com, http://twitter.com/BoschPresse.
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