Press release #Thermotechnology

New steam boiler from Bosch saves up to 16 percent energy costs

Pivovar Klášter brewery renews its steam supply

Thomas Pelizaeus >


Mashing, boiling or keg and bottle cleaning: The production of beer is an energy-intensive process and thus needs an efficient and reliable steam supply. In the Pivovar Klášter brewery in the Czech Republic a steam boiler operated for over 30 years. In order to increase the reliability of supply and to reduce the running costs Pivovar Klášter decided to renew its existing energy system. With the new UL-S steam boiler from Bosch not only the reliability increased thanks to numerous automation equipment, the steam boiler also saves around 47 m³ of natural gas per hour. Around 75 percent of these savings are realised by the recovery of waste heat from flue gas. In total, the brewery saves up to 16 percent on fuel costs with the new system.

The first flue gas heat exchanger, the economizer, is used for preheating the feed water. Thus, the need for fuel for heating up and evaporation of water in the boiler is reduced. In the downstream heat exchanger the flue gas is additionally condensing. Due to the low temperature of this waste heat it is used for preheating the brewing water.

The shell boiler can provide 4,000 kilogram of steam per hour. The natural gas firing with modulating control ensures an elastic operating behaviour. The burner capacity can be adjusted continuously to the actually needed steam demand. It is thus possible to reduce the number of burner starts resulting in higher efficiency and prolonged lifetime of the boiler and burner. After downtimes the boiler can be started very gently from the cold state by using the intelligent automatic function SUC (start-up control).

The boiler control BCO provides easy access to important operating data like fuel consumption, boiler and burner operating hours or the number of burner switches. Further optimisation possibilities can be derived from this data. Furthermore, the BCO automatically controls desalination and blow-down. In comparison to a manual operation the demand-controlled process saves energy and water. In addition, the water service module from Bosch provides the boiler with deaerated feed water. This protects the system from corrosion and ensures a continuous high steam quality.

The perfectly matched components from Bosch provide a reliable system and allowed a quick and smooth installation. Zdenek Prokupek, director of Pivovar Klášter, is pleased about the good result and the cooperation with Bosch: "With the new system we have managed to reduce our energy costs significantly and thanks to the high degree of automation we can now completely focus on beer brewing. Both the quality as well as the local service from Bosch in the Czech Republic have convinced us."

Contact person for press inquiries:
Annemarie Wittmann
Tel. +49 9831 56 218

Bosch Thermotechnology is a leading European manufacturer of energy-efficient heating products and hot water solutions. In fiscal 2020, the company generated sales of about 3.5 billion euros (63 percent outside Germany) and employed almost 14,000 people. Bosch Thermotechnology has strong international and regional brands and manufactures a diversified product range in Europe, America and Asia.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 395,000 associates worldwide (as of December 31, 2020). The company generated sales of 71.5 billion euros in 2020. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT provider, Bosch offers innovative solutions for smart homes, Industry 4.0, and connected mobility. Bosch is pursuing a vision of mobility that is sustainable, safe, and exciting. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to facilitate connected living with products and solutions that either contain artificial intelligence (AI) or have been developed or manufactured with its help. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiary and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. With its more than 400 locations worldwide, the Bosch Group has been carbon neutral since the first quarter of 2020. The basis for the company’s future growth is its innovative strength. At 129 locations across the globe, Bosch employs some 73,000 associates in research and development, of which nearly 34,000 are software engineers.

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