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CO 2 , ammonia and hydrocarbons , has “had 3,800 visitors in the first year – 80% of them are from outside Germany,” Stamer said. S tamer nonetheless noted that this training was no substitute for vocational refrigeration and air- conditioning schools. “On the path to natural refrigerants we need training,” he said.

INNOVATION IN THE TRANSPORT ARENA Another sli.do poll asked attendees, ‘ Which sector still needs more pressure or support from the policy side to quickly move towards NatRefs in Europe?’. Most (51%) opted for room air conditioning (see Accelerate Europe #8 for more on natural refrigerants in room air conditioning in Europe), along with mobile air conditioning (MAC) at 24%. Martin Hasnik is a project manager fo r te c h n o l o g y ma na g e m e n t a n d development at RegioNetz Verkehrs GmbH (‘RNV’ ), a wholly owned subsidiar y of DB Regio, the rail arm of Deutsche Bahn for regional tra ns p o r tati o n . Has n ik c all e d o n manufacturers at the conference to help Deutsche Bahn meet its goal of ensuring that all air conditioning in its new trains uses natural refrigerants by 2020. Deutsche Bahn – the world’s secondlargest transpor t company and Europe’s largest railway operator and infrastructure owner – described how it is already testing and using CO 2 mobile air conditioning in some trains. Despite its clear direction towards CO 2 , the company still lacks enough suppliers of air-conditioning systems for trains. The first DB Bahn train to be fitted with CO 2 air conditioning was a Siemens V T6 42 train, in Chemnitz (S a xo ny) i n 2016 . S i n c e th e n th e company has carried out a few more projects with a CO 2 air-cycle system (see Accelerate Europe #8). Energy savings are abou t 10% compare d to the HFC R134a used previously, Hasnik said during the session.

Marco Buoni (AREA), Volker Stamer (BITZER), Bafoday Sanyang (Gambia National Environment Agency) & Álvaro de Oña (shecco) talk training. 

I n a d d i ti o n to th e e nv i r o n m e n ta l and energy-saving benefits of CO 2 systems, Hasnik cited other important reasons to make the switch: The use of CO 2 eliminates ‘dependence’ on costly HFC refrige rants R134a, R407C and R404A; Integration of an innovative and patented air distribution system; Reduction of operating and maintenance costs, and; Possible technology transfer to other vehicles. Two manufacturers that presented during the transport session, Faiveley and Konvekta, are currently working with Deutsche Bahn on CO 2 MAC projects. Ko nve k ta has ha d so m e su c c ess outside of DB with CO 2 MAC in buses in Germany and Austria. “The vehicles with CO 2 in operation number roughly 100,” Michael Sonnekalb of Konvekta told the audience. D e s p i te th is s u c c e s s , S o n n e k a l b noted that barriers remain to making CO 2 a reality. “We don’t sell to the end user but the bus manufacturer, so he won’t see the lifecycle cost but the manufacturing cost,” he said (for more on CO 2 MAC in buses, see p. 36).

Lutz Boeck of Faiveley argued that MAC remains a cost-sensitive marketplace. “We would like to offer such solutions in 2020,” Boeck said, noting that, “costs are signific a ntl y hig h e r tha n fo r th e R13 4 a [air- con] system” that many train ope rators throughou t Europe are currently using. Faiveley is work ing on train air conditioning and heating systems in Scandinavia too. If more large train operators were to opt for CO2 and governments were to offer incentives for these systems, it could help b r i n g th is te c h n o l o g y to ma r ke t . “It would be nice to have incentives f r o m t h e g ove r n m e n t , s i m i l a r to th e o n es yo u have fo r s tati o na r y e quip me nt ” in Ge r ma ny, said Konvekta’s Sonnekalb. There are clear signs, then, that the market for natural refrigerants is developing beyond the refrigeration arena. As the HFC phase-down picks up in 2018, next year’s ATMOsphere Europe will be an important o p p o r tu n i t y to a s s e s s p r o g r e s s . CM & AW

Accelerate Australia & NZ // Summer 2018

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Accelerate Australia & NZ #8 Summer 2018  

DRAKES: PIONEERING CO2 IN AUSTRALIA Facing some of the highest energy costs in the world in its South Australia home, Drakes Supermarkets –...

Accelerate Australia & NZ #8 Summer 2018  

DRAKES: PIONEERING CO2 IN AUSTRALIA Facing some of the highest energy costs in the world in its South Australia home, Drakes Supermarkets –...

Profile for shecco