CASE S FANS TUDIES


R&D facility in Stuttgart, Germany, to see fi rst-hand the production process. Rawling said: “Bitzer’s factory systems and technical support are second to none, and it gave the customer confi dence that the proposed ammonia solution was designed, built and tested in a world-class facility by people with deep experience of the technology and its application.” A key target for the project was to achieve pay-back on investment within one to one-and-a-half years. This was achieved as a result of the signifi cant energy savings. Once the pack was installed, Bitzer engineers from Germany attended site to assist with commissioning and ensure the plant was optimised to deliver the anticipated savings.


Adrian Spencer, Demeva’s refrigeration manager, said:


“The support from Bitzer throughout the project was fi rst class, from fi rst contact to fi nal handover. Bitzer UK’s James Graham was a key point of contact and provided excellent support throughout.” Other energy saving measures implemented at the site include replacement of the evaporative condenser for the refrigeration pack, installation of modern high effi ciency glycol pumps on the secondary circuit, and a new Building Energy Management System to provide site- wide monitoring. Neil George, Pilgrim UK’s engineering manager, said: “Responsible energy use is a major area of focus for our business. We are constantly looking for opportunities to improve energy effi ciency and reduce emissions. The Bitzer ACP pack, combined with the other effi ciency measures implemented by Demeva Refrigeration, will signifi cantly reduce power consumption at Bromborough and deliver signifi cant savings in carbon emissions.” The project is part of a multi-million-pound investment


programme by Pilgrim UK to further enhance the sustainability of its operations, with the aim achieving net zero by 2030. Alongside upgrades to refrigeration plant, this includes


replacing gas boilers with heat pumps and completing the transition to LED lighting across its sites.


Download the ACR News app today The company already has local solar and wind


projects at many locations and is expanding these to the remainder of its manufacturing plants across the country, helping to reduce carbon emissions by an estimated 11,000 tonnes a year. Bitzer’s ACP range has been designed to meet the


requirement for very high effi ciency cooling for industrial applications with a zero Global Warming Potential (GWP) refrigerant.


In addition to its exceptional part-load effi ciency, it


off ers outstanding resilience, with a back-up compressor in the unlikely event of a failure, and rapid commissioning due to its plug-and-play design. Kevin Glass, managing director of Bitzer UK, said:


“Ammonia refrigeration systems have traditionally been built as one-off s, often in less-than-ideal conditions. Bitzer is able to build ACP units in a high-quality factory environment, ensuring the highest possible system integrity, absolutely essential when working with ammonia.” He added: “The modular design means that


contractors can quickly connect up ACP units on site with a few simple pipework and electrical connections. This dramatically speeds up with process of installation and commissioning.” ACP packs are based on compact Bitzer screw


compressors, which result in a smaller footprint than equivalent-capacity reciprocating compressors. In addition to the inherent effi ciency of screw


compressors, the speed of the lead compressor is controlled by an integrated Variable Speed Drive (VSD), which signifi cantly increases part-load effi ciency and enables soft-start, important on sites where power headroom is limited. A further benefi t for end users is that the screw


compressors used on ACP have much longer maintenance intervals than reciprocating compressors, further reducing the cost of ownership over the plant’s life-time.


 www.bitzer.de/gb/en/ www.acr-news.com • February 2024 31


“Responsible energy use is a major area of focus for our business. We are constantly looking for opportunities to improve energy effi ciency and reduce emissions. The Bitzer ACP pack, combined


with the other effi ciency measures implemented by Demeva Refrigeration, will


signifi cantly reduce power consumption at


Bromborough and deliver signifi cant savings in carbon emissions.”


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