Under Japan’s High Pressure Gas Safety Act, CO2 has been reclassified from the most restrictive level of Group 3, to the least restrictive level of Group 1, removing significant administrative costs for users and manufacturers of CO2 systems.

R744.com spoke with overseas system and component suppliers about their outlook on what impact this regulatory change will have on their business as well as on the industry at-large.

“This is a game changer for industrial refrigeration in Japan! CO2 is now set to become the 1st refrigerant of choice for new installations in the foreseeable future,” exclaimed Ferdinand Spannan, Managing Director for Bitzer Japan.

Bitzer, whose extensive line of CO2 compressors which includes their latest highly efficient ECOLINE+ compressor, has been active in Japan for a long time. However, Spannan believes this latest regulatory change will have a huge impact on their Japanese business.

“We have always been convinced of a great potential for CO2 in Japan in the long term,” he added. “But in 2017 this confidence has reached new heights.”

Joakim Fahlstedt, representative director for heat exchanger manufacturer SWEP Japan K.K., echoed this sentiment.

“SWEP Japan is very excited to hear about the CO2 regulation change as it will enable opportunities that we are well prepared for,” said Fahlstedt. “We have the proven technology that can cover the capacity range which is targeted within the CO2 deregulation. We also see several opportunities in the industrial sector, to utilize CO2 for waste heat recovery.”

“This is a game changer for industrial refrigeration in Japan!”

Ferdinand Spannan, Managing Director, Bitzer Japan

Suppliers ready to supply increased demand

Other CO2 component suppliers expressed excitement and eagerness to supply the increased demand. The regulatory update is also seen as validation of their investments in CO2 systems in the region.

“Considering the recent reclassification…Güntner expects a significant increase of CO2 installations in Japan in the near future,” said Patrik Raich, manager for Guntner Asia Pacific.

“We currently supply approximately 500 CO2 system components per year in Japan,” he added. “For 2018, we expect around 1,000 units.”

Anticipating an increase in demand for CO2 in larger applications, Raich emphasized Guntner’s range of CO2 gas coolers, de-superheaters, evaporators, bare coils, floor-mounted cooler and plate heat exchanger units, already available in Japan.

“Therefore, we can cover applications such as commercial and industrial refrigeration, logistics centers, food processing and shock frosting,” he said.

Control supplier Carel, also believes the deregulation will increase the market for CO2 in larger industrial applications.

“We think that CO2 in low temperature applications (cold rooms and tunnel freezers) could be a good alternative to cascade NH3/CO2 systems or ammonia direct expansion systems,” said Nicola Pieretti, application manager for Carel. “The new regulatory change confirms this direction.”

Carel, together with their Japanese partner Shibata Welding Construction company, has been working on the development of CO2 rack systems in Japan for the last five years and is well-positioned to supply the increased demand.

Enrico Dall’Armellina, senior key account manager for Swedish supplier Alfa Laval cited their company’s on-going effort to localize their production of high-pressure brazed heat exchangers for CO2 transcritical for the Asian market.

“This regulation update just reinforces our willingness to proceed in this direction,” he said.

Armin Schnell, managing director for component supplier ebm-papst agreed, “We think that the easing of the regulation will lead to a further increase in CO2 refrigeration equipment [in Japan] in the future and we are ready to address the increased demand.”

End users to see increasing number of CO2 advantages

The suppliers also emphasized the positive impact the new regulations will have on the end users who use their equipment.

“One of our customers is using our CO2 compressors for hot water heat pumps in commercial capacities (hotels, hospitals, offices, institutions, dormitories, etc.),” said Spannan. “This new regulation reduces workload for this OEM, as well as the end users as they won’t need to provide as much documentation to local High Pressure Safety Institute of Japan (KHK) authorities for units with capacities between 3 to 20 RT.”

This effect, indeed, is in line with the intention of the Japanese government whose stated goal is to “relax administrative procedures for businesses in utilizing refrigeration units using carbon dioxide refrigerants,” according to their website.

“This effort is expected to contribute to the further dissemination of carbon dioxide refrigerants,” the statement on their website adds.

Combined with the soon expected return of government subsidies for natural refrigerant systems in retail and food processing applications, 2017 is proving to be the year of increasing momentum for CO2 use in all applications in Japan.

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