Events // 43
Shaking up the chiller market German compressor and systems manufacturer GEA was among those innovating in the chiller market, exhibiting a new ammonia chiller and screw compressor designed for air-conditioning applications. “We managed after seven years to produce a semi-hermetic [compact] screw compressor [including an oil separator] for ammonia,” Dirk Oschetzke, product manager – screw c o m p resso rs , GE A , told Accelerate Europe. “Everyone thinks from the same look and feel that it’s like a [HFC] chiller, but it’s different.”
any of the companies at Mostra Convegno – a bi - annual tradeshow held on 13-16 March at Fiera Milano Rho in Milan, Italy – continue to rely on HFCs that are being phased down in Europe and globally in their air-conditioning, heat pump and chiller portfolios. HFC usage is particularly high in the HVAC sector, with 65% coming from air conditioning, according to UNEP. Rising average global temperatures caused by climate change are likely to increase demand for comfort cooling in southern Europe, according to 2017 research published in the journal Proceedings of the National Academy of Sciences (PNAS). 2017 was the third consecutive year in which average global temperatures were more than 1°C above late 19 th Century levels, according to NASA scientists.
Summer 2018 // Accelerate Europe
The ex tent to which countries face temperature increases varies dramatically between southern and northern Europe. “We find significant increases in average daily peak load and overall electricity consumption in southern and western Europe (3 to 7% for Portugal and Spain) and significant decreases in northern Europe (-6 to -2% for Sweden and Norway),” say Wenz et al. in the PNAS article. The new EU F-Gas Regulation is putting European companies under significant pressure to develop solutions that lower the GWP of the refrigerants they use. On 1 January 2018 the overall allocated quota of HFCs under the F-Gas Regulation fell from 93% of the original 2015 baseline to just 63%, causing HFC prices in Europe to rise. Some manufacturers at Mostra, from the heating and cooling industry in the comme rcial , industrial and residential sectors, showcased solutions to address Europe’s need for environmentally friendly HVAC technologies.
The compressor has a suctioncooled motor and copper winding, helping to increase system efficiency. GEA also introduced a chiller using the firm’s semi-hermetic compact screw compressor. As the price of HFCs increases thanks to the reduced HFC quota under the new EU F-Gas Regulation, the product grants end users the ability to install a future-proof solution. “Everyone is unsure. We have new refrigerants, but the price [of refrigerants] is going up,” said Oschetzke. “For this kind of chiller at 1.2 MW, we have [...] 60 kg of ammonia charge. Others [HFC chillers] have 400 kg of [HFCs] that [can cost] 10,000 euros.” GEA is not yet selling the chiller commercially. It is currently field testing the product and will start selling it to the market in the near future.
HEINEKEN: CHEERS TO A GREENER WORLD!