Jungheinrich,  Kaltenkirchen - Germany

Project details

Industries

Humidity control in office environments, Warehousing and logistics

Products

DRAABE PerPur, DRAABE SynPur, DRAABE HighPur, DRAABE NanoFog , DRAABE DI Flex, DRAABE HumCenter, DRAABE HumSpot, DRAABE PurControl

Technologies

High pressure spray (in-room)

Air humidification at Jungheinrich spare parts centre offices

It all began in 1953 with a small workshop and the first electric four-wheel forklift truck, the “Ameise” (ant), which was to make industry history and become the generic name for pallet trucks. The H. Jungheinrich & Co. Maschinenfabrik, founded by Dr. Friedrich Jungheinrich in Hamburg with an initial workforce of 30, has since grown into a group with over 20,000 employees. Today, Jungheinrich is one of the three largest companies in its sector worldwide. As a manufacturing service provider and solution provider for intralogistics, the company supports its customers with a comprehensive range of forklifts, racking systems, services, and consulting.

Decision for open space

On the occasion of its 60th anniversary in 2013, Jungheinrich set the course for further consistent growth, which continues to this day: In addition to two new production sites in China and Germany, the company also opened a state-of-the-art spare parts centre in Kaltenkirchen, near Hamburg. To optimise spare parts management, a 31-meter-high high-bay warehouse and an automatic small parts warehouse for over 90,000 stock items were built. “This enables us to guarantee spare parts availability of over 98 percent today, which is twice as much as in 2013,” recalls Jens Ringeling, who is responsible for facility management at the site as group leader. The offices in the spare parts cenrer's administration building are designed as an open-plan office covering an area of 3,800 m². The decision to adopt this spatial concept enables more transparent and direct communication between employees. For Jens Ringeling, the open-plan workplace design has clear advantages, but also presents particular challenges: "It promotes communication between teams and encourages idea generation and problem-solving processes. Our customers receive even better service. On the other hand, especially at the beginning, employees had reservations about noise pollution, lack of privacy, insufficient daylight, and poor air quality." Creative interior design planning with sample areas and information events for the teams helped to alleviate many of these concerns before the move to the new building. However, after moving into the office space, there were increasing complaints about the indoor climate in winter.

Complaints about dry air

The humidity in the open-plan offices in particular was perceived as too low: after individual employees complained of dry eyes and airways as well as hoarseness, measurements taken by facility management confirmed humidity levels of only around 20 percent. “The value was definitely too low. We then discussed the issue with the works council in the occupational health and safety committee and decided to look for technical solutions,” says Jens Ringeling, explaining the initial situation. In order to evaluate suitable retrofitting options, Jungheinrich commissioned an engineering firm to develop a humidification concept. Both central humidification in the ventilation system and decentralised direct room humidification were considered. When evaluating the advantages and disadvantages, Jens Ringeling focused not only on the investment costs but also on the ongoing operating costs: “We ultimately opted for direct room humidification with high-pressure nozzles, as the energy costs are lower and the effort required to ensure hygiene is less. The maintenance concept also played a major role in this decision.” In 2017, the manufacturer Condair Systems and its Nanofog air humidification system, which was developed specifically for office applications, were chosen.

Safe air humidification

Over 70 Nanofog humidifiers are in use in the open-plan offices, ensuring an optimal relative humidity of 40 percent all year round. All that is visible is a fine mist that is generated when the humidity falls below the set target value. The system is controlled by hygrometers, which are evenly distributed throughout the office space to measure the humidity and activate humidification when necessary. The fine atomisation of the water is made possible by high-pressure technology and upstream water treatment: a high-pressure pump generates an operating pressure of up to 70 bar and feeds the water through high-pressure pipes to the humidifiers in the rooms. “The installation was absolutely problem-free and could even be carried out while we were still operating,” says Jens Ringeling, describing the simple retrofitting of the air humidification system. The heart of the system is the water treatment unit, which, like the high-pressure pump, is installed in transportable service containers. The water is continuously demineralised there and all impurities and germs are removed. Every six months, Jens Ringeling's team receives refurbished and cleaned containers as replacement units and does not have to worry about maintaining the system themselves: “Safe and hygienic operation is just as important to us as external documentation, which is also regularly requested by our works council.” The manufacturer's service package therefore also includes annual certification in accordance with VDI 6022, Sheet 6, which confirms through comprehensive testing of the system that all necessary hygiene measures in accordance with the current state of the art are being observed at Jungheinrich.

Workplaces to feel good in

Since the direct room humidification system was commissioned, air humidity has no longer been an issue for employees. "We received a lot of positive feedback immediately after the retrofit. The air feels fresher overall, and there are no more complaints," confirms Jens Ringeling. Controlled humidity has become a key component of attractive workplace design at Jungheinrich in Kaltenkirchen. In addition to optimising the indoor climate, further measures are planned, such as redesigning the office environment with additional communication areas and spaces for concentration and group work. Especially in the context of hybrid working, employees should enjoy coming to the office and experience additional benefits there that are not available when working from home. “Our additional air humidification fits in very well with this, because the positive effect is immediately noticeable and has a direct impact on employee satisfaction and health protection,” says Jens Ringeling, summarising the experience gained.

"The air is perceived to be fresher overall, there are no more complaints."

Condair in action

Projects and references

Laverana GmbH&Co. KG, Hannover (Germany)

In the converted Laverana headquarters of the natural cosmetics manufacturer, it is shown how optimal air humidity and the natural materials used in the building can ensure a very special feel-good climate.

JURA Kommunikations-Center, Nürnberg (Germany)

JURA Elektrogeräte Vertriebs-GmbH has been located in Nuremberg since 1987. 362 days a year, 30 employees are available in shifts for end customers and specialist dealers and advise and support them on all questions about fully automatic Jura machines and accessories.

Mondi Group, Sonneberg (Germany)

The Mondi Group is a manufacturer of paper-based packaging made of corrugated and solid board. More than 3,000 employees in 15 plants at a total of 13 European locations produce individual packaging solutions in all required sizes and finished in a wide variety of ways.

Sparkasse Mainfranken, Würzburg

Sparkasse Mainfranken Würzburg is one of the top savings banks in Germany. Since 2014, humidification at the Karlstadt branch has been ensuring an optimal indoor climate.

Das Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO, Stuttgart (Germany)

In a 2-year study, the Fraunhofer Institute for Industrial Engineering IAO investigated the significance and effect of humidity in the office. The results show that humidity has a positive effect on the assessment of the workplace and can also have an effect on the health and performance of office workers.

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