3.2 The Concept of Energy
51
The use of energy in manufacturing systems starts with the availability of the
final energy at the system boarders of the company. The energy flow through
the company is divided into different segments, which characterize the conversion steps of the industrial energy system. It includes all assistive devices that are
required for the energy import, the energy conversion and distribution, the energy
application, as well as for the energy recovery 6 and energy losses (Figure 3.8).
The energy import includes the selection and optimization of the delivered final
energy products to the company. The provision of net energy can involve transformation processes as heat converting, electricity or compressed air converting
as well as the further distribution within the company to the point of use [Po2011,
p. 137]. The main consumers of energy in a manufacturing company can be divided into electronic, steam and hot water using applications. Main applications
using electric energy are electronic power drives of production machines, compressed air pressure supply units, or the room lighting. Producing companies often
create waste heat during their production processes which can be recovered and
reused [Ha2013, p. 15].
Figure 3.8 Energetic correlations in manufacturing companies [Ha2013, p. 13]
6 The process of energy recovery describes the use of energy that would have otherwise been
characterized as a loss for covering, e.g., a heating demand [RW2008, p. 15].
51
The use of energy in manufacturing systems starts with the availability of the
final energy at the system boarders of the company. The energy flow through
the company is divided into different segments, which characterize the conversion steps of the industrial energy system. It includes all assistive devices that are
required for the energy import, the energy conversion and distribution, the energy
application, as well as for the energy recovery 6 and energy losses (Figure 3.8).
The energy import includes the selection and optimization of the delivered final
energy products to the company. The provision of net energy can involve transformation processes as heat converting, electricity or compressed air converting
as well as the further distribution within the company to the point of use [Po2011,
p. 137]. The main consumers of energy in a manufacturing company can be divided into electronic, steam and hot water using applications. Main applications
using electric energy are electronic power drives of production machines, compressed air pressure supply units, or the room lighting. Producing companies often
create waste heat during their production processes which can be recovered and
reused [Ha2013, p. 15].
Figure 3.8 Energetic correlations in manufacturing companies [Ha2013, p. 13]
6 The process of energy recovery describes the use of energy that would have otherwise been
characterized as a loss for covering, e.g., a heating demand [RW2008, p. 15].