eJARN News
Schneider Electric Expands IT Cooling Business
Schneider’s Ruediger Gilbert says the company is aiming to become the leading supplier of precision cooling systems for the IT industry in Europe. In Germany, they will be in direct competition with Stulz and Emerson Network Power. Schneider’s present range includes chillers, in-row cooling systems, close control air conditioning, active floor systems and packaged solutions for IT centers. Schneid...
Heat Pumps and Floor Coils
Air-to-water heat pumps are automatically assumed to require underfloor coils as the heat sink because their low operating temperature gives the best performance in terms of energy efficiency. This is often seen as limiting applications to new build or to buildings needing extensive refurbishment. But as Jim Bennett points out in HVR magazine the role could be taken on equally as well by th...
New Heat Exchangers for VRF Systems
Chillventa was chosen as the venue to launch Mitsubishi Electric’s new range of all aluminum heat exchangers for its City Multi VRF range which will start selling on the European market in 2015. The advantages compared with earlier copper tube/ aluminum fin versions are its better heat transfer rate, reduced overall weight and footprint, and 10% less refrigerant content. Rectangular-profile tubes ...
Data Overload
Information on operating parameters of services systems in large buildings and building complexes can overwhelm data systems tasked with evaluating and systematizing the input. This so-called ‘big data’ problem generated an industry worth over ￡17 billion (US$ 27 billion) in 2014 which is projected to grow to over ￡30 billion (US$ 47 million) next year. Facility managers and engineers wanting to...
Contraband Refrigerants, a Future Threat
The black market in counterfeit refrigerants began when CFCs were being phased out. But today the focus has shifted to HCFCs which currently have a consumption rate three times greater than CFCs at their peak and offer a lucrative trade in rebranding. An analysis by the Environmental Investigation Agency (EIA) shows that exports of R22 from China do not match the reported receipts at the destinati...
Heat Pumps in Sweden
The success of the heat pump industry in Sweden is largely due to strict government policies on energy conservation which in particular exclude the use of oil-fired boilers in new or refurbished houses and actively encourage the use of heat pumps. Today over 80% of households use electrically driven heat pumps as the principal means of space heating and most are based on ground-source evaporators....
Chilled Beams in UK
Fan coils are often chosen by developers of speculative office blocks as the fail-safe alternative to chilled beams because they offer an easy solution in dividing up the letting spaces. Such a building is unlikely to achieve the energy efficiency level now expected from modern buildings, says Swegon’s Martin Proctor. For example it will be low in the Building Research Establishment Environmental ...
AHUs in Germany
Over 75% of the air handling units (AHUs) being sold for the commercial sector in Germany are relatively small units rated at less than 20,000 m3/h. The trend is to use so-called compact packages rather than custom- built units which were favored in the past. These units follow the ‘plug-and-play’ concept where all essential components are built in and prewired. Typical of today’s products ...
Hitecsa Buys Wesper
Once on the brink of bankruptcy and now controlled by the investment group PHI Industrial, Spanish ACR products manufacturer Hitecsa has begun a policy of expansion which has currently doubled its revenue to around US$ 30 million. A notable acquisition is the French company Wesper and its manufacturing center in Pons which will add a range of packaged air conditioner units and chillers to Hitecsa’...
STULZ: Global Giant in Data Center Cooling
STULZ is a specialized manufacturer in data center cooling and is developing business in the global market. JARN interviewed Marc-Oliver Stulz, managing director of STULZ, in Tokyo, to hear about the ...
