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Different technical solutions are proposed for the
various kinds of industries in Cyprus. From the total energy
consumption point of view three sub-sector are dominant. The first is
the cement industry which consumes 50% of energy in industry (mainly
coal, but also HFO). The second is the food and beverage industry
which consumes another 22% of energy in industry (diesel, LFO and LPG).
The last one is the building material industry which consumes 10% of
energy in industry (LFO). The same sub-sectors are dominant in
relation to electricity consumption.
For the cement industries the following measures are proposed:
Installation and operation of Energy Management System (EMS)
Introduction of 3rd generation burners, resulting in low NOx
emissions (<100 ppm)
Interest in firing of low-grade fuels such as waste (tires,
industrial wastes, MSW, used oils, agricultural wastes, etc.)
Recovery of waste heat at different stages of the production process
(excess air from coolers and preheaters is used for drying and
preheating of raw material)
Introduction of new high efficiency motors and Variable Speed Drives
(VSD)
Interest in installing co-generation units (CHP)
According to rough estimations and based on international experience
an average of 10-15 % savings can be expected from energy management
and relatively low cost measures.
In the food and beverage industries, energy efficiency is
significantly related to the horizontal energy technologies used (e.g.
steam systems, heat exchanging, compressed air systems, chilling and
refrigeration systems, heat recovering etc.) as well as to good energy
management practices.
In the building material industries, measures in the direction of
energy conservation include:
Recovery of waste heat from the cooling zone of the tunnel kiln to
dry bricks at the dryer
Reduction of heat loss through walls
Interest in co-generation units
Energy conservation efforts for the rest Cypriot industries can be
mainly concentrated in the first two levels, described below:
Level 1 - Good housekeeping
Good housekeeping measures which include good practices for the
operation of the energy systems, improvement of production techniques,
and more effective management is expected from the international
experience to contribute on cost energy savings in the range of 10 –
15 %.
Level 2 - Equipment improvement
By introducing high efficient equipment, the energy efficiency is
expected to improve at a percentage more than 10 %.
While the implementation of such measures is easy from the technical
point of view, significant difficulties arise during materialisation
phase.
The difficulties are mostly organisational and managerial are due to
the following facts:
The measures are addressed to many small and interspersed
enterprises
The small companies in Cyprus and worldwide is characterised in
general, by lack of awareness of the available technologies, and
limited technical facilities and staff.
Based on the obtained information and previous experience it can be
estimated that the successful implementation of complex measures in
the above two levels are expected to bring energy cost savings in the
range of 20 –25 %.
Level 3 - Processes improvement
Additional savings could be achieved by process improvements, but the
benefits arising from such measures are difficult to be estimated.
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