Bock Kältemaschinen GmbH was at EuroShop in Düsseldorf from 23 to 27 February
2008, presenting its latest solutions for saving energy and using natural
refrigerants in supermarket cooling systems.
Covering an area of over
100,000 square metres and with 1,800 exhibitors, EuroShop is the leading global
retail trade fair when it comes to capital expenditure.
Refrigeration
plants are an energy-intensive area of investment which supermarket operators
are taking more interest in. The aim is not just to reduce energy costs and
thereby supermarkets’ CO2 emissions, but also to replace existing systems over
the next few years with solutions that incorporate environmentally friendly
refrigerants.
On its stand at EuroShop, Bock presented proven solutions
that address these challenges.
In the shape of the Bock EFC system, Bock
offers a plug & play solution for controlling the speed of refrigerating
compressors with frequency converters. This EFC system’s targeted use of
refrigeration compressors unlocks potential for savings of 25% and more,
depending on operating conditions.
Sales manager Thomas Hagenlocher,
responsible for the stationary division at Bock, openly concedes that the price
of such EFC systems is considerably higher than with mechanical output
regulators due to the frequency converters being mounted directly on the motor.
Calculations of return on investment prove, however, that this higher investment
will be amortized over a period of two years at the most – a short period in
light of the total service life of cooling systems, which averages out at more
than ten years. “Anyone who has purchased this system from us and used it for
the first time always comes back as a regular customer,” asserts Hagenlocher.
Anyone who designs and builds systems with refrigeration compressors
will receive an easy-to-install solution as a total package from Bock, which
will include all of the components designed to fit together optimally. The
know-how for commissioning by installation companies is generally limited with
respect to drive technology. “For this very reason, we have only activated eight
parameter channels on the converter. Everything else is fully configured,”
explains Thomas Hagenlocher. |
Bock also unveiled numerous compressor solutions for use with various natural
refrigerants at EuroShop 2008. The central role that CO2 will play as a
refrigerant in future was also highlighted at EuroShop, with a number of cooling
system manufacturers focusing on CO2 developments at the show. They included
Koxka, part of the Ingersoll Rand Group, which presented a CO2 compound
refrigerating system featuring semi-hermetic Bock CO2 compressors on its stand.
As one of the pioneers in this field, Bock has been building experience
since the early 1990s and now provides leading OEM customers with semi-hermetic
CO2 compressors for supermarket cooling.
In addition to compressors
using CO2 as refrigerant, models for use with hydrocarbons such as propane or
ammonia complete the Bock range shown at EuroShop 2008. |
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