eJARN News
Improving Long-term Energy Storage
If the insulated space around a water storage cylinder is held under vacuum, it vastly improves its performance as a long-term heat or cold storage reservoir. Research at the Zentrum fur Angewandte Energieforschung (ZAE) in Bavaria and a cylinder manufacturer Hummelsberger used perlite granules for the infill. With a vacuum of 0.1 mbar, the effective conductivity of the space was less than ...
Themes at Chillventa
Visitors to October’s Chillventa expo in Nuremberg, Germany, have noticed three recurrent themes says Rolf Grupp of cci magazine: new refrigerants, the growing preoccupation with the EU energy-related products directive (ErP) and a distinct trend towards the use of direct expansion (DX) solutions in heat pump packages and air handling units. Examples of the current use of the ‘new’ refriger...
ACR Market in Europe Newly Assessed
A report from Interconnection Consulting in Vienna (Austria) estimates the market for commercial-sector packaged air conditioning equipment in six European countries in 2013 to be around 1.1 million units with a total value of 3.6 billion Euro(US$ 4.5 billion). Included are single and split air conditioners, VRF systems, chillers and roof tops. In spite of a fall in total value of 2% over t...
Air Quality in Question
“Buildings were never designed to save energy but to ensure the comfort and health of their occupants” said Prof. Francis Allard, opening the 34th annual conference of French HVAC professionals AICVF in September. The national 2012 energy regulations were called into question because their emphasis of high insulation levels and virtually sealed con struction was leading to unhygienic buildi...
Future for HFOs
According to many exhibitors at the last Chillventa expo in Nuremberg, Germany, some HFO blends had performed so well in tests that they could act as true drop-in replacements even when using the same lubricants. DuPont’s John McMenamin says that the much lower global warming potential (GWP) demanded by the F-gas Regulations by 2017 means that an increasing proportion of the installed HFCs ...
Mitsubishi Electric Creates New Market with HVRF
Technological innovation is the mantra of VRF market leader Mitsubishi Electric. Two years ago the company announced its HVRF system in Europe. JARN interviewed Yoji Saito, president of the German Br...
HPC News Letter Features Heat Pump Market and Policy
The heat pump market is significantly influenced by policy decisions, and vice versa. At the 11th International Energy Agency (IEA) Heat Pump Conference, held in Montreal, Canada, on May 12-16, a numb...
Airwell Following Takeover by Systemair
When Systemair took over Airwell France in July, it announced its main aim was to strengthen its global position on the commercial and industrial air conditioning market. Following the merger, Airwell’s name became Systemair Airwell, and the company is expected to become profitable thanks to synergy. Airwell’s factory in Tillieressur-Avre in the Eure region of France continues to manufacture chill...
Turbotech: Specialist of Aluminum Compressor Wheel Casting
Established in 1986 in the United Kingdom, Turbotech Precision Products specializes in the manufacture of cast aluminum compressor wheels for the cold end of diesel turbochargers, particularly for tr...
EVAPCO launches its new ATC-DC wet-dry condenser for industr
20 November 2014 EVAPCO’s ATC-DC evaporative condenser is the latest example in Evapco’s on-going commitment to quality, innovation and environmentally friendly products. The ATC-DC is an induced draf...
