Development of a process combination using zeolite heat pump,
vacuum evaporation system and combined heat and power plant (CHP)
for energy efficient heat supply of breweries
Project partners:
DBU - Deutsche Bundesstiftung Umwelt
RWTH Aachen, Lehrstuhl für Technische Thermodynamik
Kaspar Schulz, Brauereimaschinenfabrik und Apparatebauanstalt
funded by:
DBU - Deutsche Bundesstiftung Umwelt
Project description:
In the process of beer producing the most energy intensive
step is the one when the wort needs to be heated up. In a
classical brewery the cooking of the wort juice takes place at
the atmospheric temperature and some part of the water is
evaporated for reaching a certain concentration of sugar. If
the “Schoko” procedure, of Kaspar Schulz, is used, the
evaporation takes place into a vacuum pressure therefore high
temperature is not needed. So, the wort heating process
around approximately 25°K to 99°C is the most energy
intensive step.
The entire demand of heat in a brewery, excepting the wort
cooking, can be satisfied by a CHP (combined heat and power)
plant with a temperature level of 90°C. The use of a CHP plant
in a brewery becomes meaningful. The high temperatures
levels, over 90°C, for short periods of time, can be reached by
using a zeolite storage.
Objectives of the project are to develop and implement a
zeolite storage in a model system to validate the combination
method, modelling of the energy balance of a brewery with
this combined procedure for the determination of the energy
flows and the energy and CO2 savings. Related to the use of
the primary fuels, a reduction of at least 10% is expected.
Contact:
Head of Thermal Technologies:
PD Dr.-Ing. Winfried Russ
Phone.: +49 (0) 81 61 - 71 38 65
E-Mail: [email protected]
Projekt supervisor:
Dipl.-Ing. Alin Diaconu
Phone.: +49 (0) 81 61 - 71 31 06
E-Mail: [email protected]