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Using a CO2 refrigeration system case study, Tsutomu Saito highlighted the main reasons to install CO2 technology, including helping to prevent global warming and making energy savings. In its Shintakakura store, CO-OP Mirai expects to see 27% energy savings compared to HFC refrigerants.
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Based on a case study about Aruk Iguchi-myojin store using CO2 refrigeration, Marukyu’s Kazunari Tanaka emphasised the company’s commitment to support community-based living and to analyse customer needs to correspond a continually changing market.
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Commercial Refrigeration Technology Case Studies |
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Yukio Yamaguchi of Sanden presented performance results of the company’s CO2 refrigeration systems for convenience stores and other applications including air conditioners. A producer of hermetic compressors, Sanden’s cascade system with pressure control is achieving excellent efficiencies in very high ambient temperatures of over 40 degrees Celsius.
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Bitzer’s Olivier Javerschek investigated how high efficiency CO2 systems are staying at the forefront of commercial refrigeration technology. Through integrated solutions for low- and medium-temperature loads, as well as air conditioning and heating, CO2 technologies are constantly evolving to meet the demands of differernt ambient regions.
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This presentation explored the combined use of scroll and semi-hermetic technology to enhance CO2 booster systems. Studies have shown that no special engineering is required to mix the compressor technologies in building a booster pack, with the added benefit that scrolls offer ease of modulation and ensure that the overall system is more cost-effective.
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Using a case study from the Schaufler Academy in Southern Germany, CAREL’s Tadao Sekiguchi deduced that high efficiency integrated parallel compressors for CO2 systems increase their COPs dramatically, citing third-generation CO2 booster systems as “the future” in light of the revised f-Gas Regulation.
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Yamato’s Toshiaki Hosono presented case study data on the performance of the Ultra Eco-Ice system with the new CO2 pressure adjust control system, first introduced to the market in 2015. Yamato has found that brine ice thermal storage-equipped systems differ from standard direct expansion CO2 system in three ways: lower energy consumption, higher COP and reduced initial costs via downsizing of the system.
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