eJARN News
Stulz Launches Data Center Optimization Service
Stulz Australia has launched a data center audit and optimization service designed to assist Australian organizations with identifying risk, reducing energy consumption and improve power usage effecti...
Osaka Gas Promotes GHP Benefits and Advantages
At the International Symposium on New Refrigerants and Environmental Technology held in Kobe in November 2014, Toshinari Sakai, leader of Energy Engineering, Osaka Gas, gave a presentation on the late...
Failure of Air Conditioning Inspections Scheme
The EU requirement that all air conditioning systems installed since 2004 and rated at 12 kW plus must be independently evaluated for the efficient use of energy looks unlikely ever to meet its targets. As part of the European Energy Performance of Buildings Directive (EPBD), which came into force in 2007, it gave October 2014 as the deadline for all these inspections to be completed. It also spec...
Heat Pump Market Trends in Europe
The commercial sector currently offers the best prospects for growth for heat pumps says Thomas Nowak, secretary general of the European Heat Pump Association (EHPA), in an interview with the French magazine Clima+Confort. More than 10% of heat pump sales are for installations of 20 kW and over - an estimated market of 70,000-100,000 units. Feedback from the industry shows demand is growing...
The Future of R404A
One of the refrigerants at risk from exclusion in the not so distant future is R404A, mainly because of its high global warming potential (GWP) at over 3,900. Under the F-gas Regulations, all refrigerants with a GWP of over 2,500 will be banned in new equipment from 2020 except for cryogenic applications. Top-ups with reclaimed and recycled fluids will be permitted until 2030. This scenario must a...
Importance of Whole Life Costing
The cost of energy used in the life of an air conditioning plant far exceeds first cost and peripherals such as maintenance. An analysis by Danfoss of costs over a five year period for a typical condensing unit shows 68% is accounted for by energy and only 21% by the initial purchase cost. Software tools developed by Danfoss enable lifetime performance of a refrigeration plant to be analyzed and t...
Daikin Buys Solvay
Chiefly known in Europe for its range of air conditioning products, Daikin has now acquired a European manufacturing base for refrigerants with its purchase of Solvay in Frankfurt (Germany) for a repu...
Slurry from PCMs
The use of a phase-change material (PCM) to create a slurry which acts as a high capacity heat transport fluid as well as storage medium has been developed in Germany by Fraunhofer-Gesellschaft in collaboration with RWTH Aachen University. Called CryoSol Plus, the slurry consists of a mixture of water and finely dispersed paraffin droplets which form the latent heat component, melting or solidifyi...
Mega Project for Chilled Beams
Chilled beams have a leading role in the new 400,000 ft2 (37,160 m2) 16 -storey corporate headquarters built for the Co- operative Group in Manchester (the United Kingdom). Trox UK supplied a total 6,000 m of multi service passive beams which were packaged in a 4.5 -meter long and 1.7-meter wide unit ready piped with headers and integral services such as luminaires. The building is rated one of th...
Ingersoll Rand Acquires Frigoblock
Transport refrigeration specialist Frigoblock (Germany) is to be bought by Ingersoll Rand (the United States) who markets the well-known Thermo King range of units. Frigoblock is the largest manufacturer of chillers for trucks and trailers in Germany and the third largest Europe -wide in the transport refrigeration sector. The company produces around 2,500 units annually from its facility in Essen...
