KWS SAAT AG has more than 150 years of experience in cultivating crops and is now among the world's top four in this industry. KWS concentrates on crops of sugar beet, corn, cereals, oilseeds and legumes. Headquartered in Einbeck, Germany about 75km south of Hanover.
For the benefit of R&D IVL Commercial Refrigeration installed 9 climate chambers for the purpose of tissue culture and storage.
The conditions in six climate chambers can be regulated at temperatures from 24 to 28°C with a relative humidity of 50 to 70%. Each chamber can be regulated by means of digital controls, which are connected to monitoring and alerting systems with a Profibus network. The climate chambers are installed with five levels (over 800 m2), lighting (in total 1035 fluorescent fixtures installed) and shelf cooling.
Cooling takes place by means of cold water (originating from the central cold water system), heating occurs electrically (required only in special circumstances). Humidification takes place ultrasonically. Each room is equipped with ventilation.
In addition to the climate chambers for tissue culture, there were three chambers installed for storage; two of which were installed with partial lighting, and one chamber with low r.h. The temperature can be controlled in these chambers between 4 and 12°C at a relative humidity between 40-60%. Cooling takes place by means of water / glycol, originating from a central system. Air distribution occurs with textile duct hoses. Humidification takes place ultrasonically. Drying occurs by means of sorption dryers arranged in the climate chambers. These chambers are also regulated with digital controls connected to the Profibus network. This project, despite the short lead-time, was on schedule and satisfactorily installed thanks to the adroit collaboration between the different disciplines.
Unique project from the viewpoint of IVL
- Cooperation with the large number of German third-parties involved such as the architect, contractor, construction management, engineering, mechanical- and electrical engineers and Profibus / SCADA specialists.
- The organization of meeting all German regulations in order to work in Germany.