Connecting SMEs for a green economy

Optimising heat use System Components for a Modern Hall Heating Concept

Andreas Bauer's picture

The need for energy-efficient heating systems for large rooms such as production halls, warehouses and sport halls has been steadily growing in the past years. Stricter laws in regards to heat generation, an increasing resource shortage and the resulting energy price developments significantly increase this phenomenon. Modern decentralized hall heating systems already allow today for efficient and environmentally friendly operations and ensure a pleasant room temperature in every workplace, even in halls with a high installation height.

Project Idea
The small enterprise Kübler is specialized in particularly economic infrared heating systems with so-called ‘dark radiators’. The key component of these heating systems is a radiation tube, which is heated up to high temperatures with the help of a bas burner. The infrared radiation from the tube becomes effective as heat where it is needed: directly at the work stations of employees. It is thus unnecessary to directly heat the whole air volume of the hall (which is associated with high-transmission and ventilation losses). Despite the efficiency gains already achieved for those systems, the sector maintains its focus on further developing the intelligent and resource efficient use of heating systems.

An innovative product
The Karlsruhe Institute of Technology and Kübler GmbH developed and optimized several system components for the dark radiator system of the business – supported by the results of a PRO-INNO-II project. They succeeded in finding a solution for a highly efficient residual heat use in addition to drastically reducing harmful emissions by radiation heat bodies through combustion and construction technical measures.
The new hall heating system H.Y.B.R.I.D. joins efficiency optimised infrared heating with an efficient heat control and the residual heat use O.P.U.S.x., which can be used for hot water heating of office spaces. With up to 15% of recovered energy from exhaust gas and a high combustion efficiency, the system sets new measures for the economical heating of halls. Depending on the type of hall and its size, energy savings of 30 to 70% can be reached with this installation in comparison to convective heating systems. In addition, the infrared system does not create health-threatening dust turbulence and it provides the possibility to heat targeted working spaces, in addition to allowing for low-noise operations.

Additional features of the system:
• Low investment costs and low use costs;
• A reduction of CO2 emissions up to 70% over the lifecycle (in comparison to traditional systems);
• No heat accumulation under the hall ceiling, due to very low convection;
• Pleasant warm sensation;
• Robust machines, that guarantee undisturbed operations;
• Modular expansion possibility;
• Short heating up times;
• Zone- and workspace heating is possible.

In 2012, the H.Y.B.R.I.D. heating system received the Rheinland-Pfalz Innovation Prize and was awarded the title of “Germany’s most sustainable product” by the German Sustainability Prize.

Market and clients
Kübler GmbH’s clients include well-known automobile manufacturers, sport hall managers, event halls and numerous other businesses from various branches. Through the use of the residual heat via the O.P.U.S.X system, Kübler GmbH currently generates 27% of total order value. Plenty of reference projects prove this success. Due to the increasing demand for the whole H.Y.B.R.I.D. System, the company is planning to significantly increase its workforce in the next eight years.
Cooperation partners
Kübler GmbH is based in Ludwigshafen, employs 90 people and manufactures hall heating systems. Since the foundation of the small business in 1989, the optimization of the energy efficiency of heating systems is a priority.
The Karlsruhe Institute of Technology (KIT) is a worldwide leading research institute in the field of technology. As a university and member of the Helmholtz Association of German Research Centres, the institute makes a significant contribution to national and international cutting-edge research. KIT fosters the interdisciplinary networking of scientists from 140 institutions.

Project theme:
System components for a modern hall heating concept.

Project implementation:
Kübler GmbH
Am Bubenpfad 1a
67065 Ludwigshafen am Rhein
Telefon 0621 570000

c/o Effizienz-Agentur NRW
Henning H. Sittel
Tel. 0203 378 79 51

Green Eco Net
c/o Ecologic-Institut gGmbH
Dr. Martin Hirschnitz-Garbers
Tel. 030 86880 272

German language source: BMWi

Further details

How was the green solution financed?: