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Indus, rial news No uvelles de I'in dustrie
coils are available for fluid cooling. The condensers capacity and size, coupled with low noise levels make the unit suitable for installation in many applications where tradition- ally water cooled systems were used.
Searle Manufacturing Company, Newgate Lane, Fareham, Hants. PO14 1AR, UK
Hymatic high pressure compressor licence The Hymatic Engineering Company, of Redditch, and Glasgow-based pre- cision engineers, Barr & Stroud, a member of Pilkington's Electro- Optical Division, have agreed the terms ofa licence arrangement under which Hymatic will manufacture and sell the high pressure pure air supply unit known as the QK Compressor.
The compressor is a second generation design which offers improvements in required servicing intervals, lower power consumption and full military environmental specification.
The air supply unit was developed by Barr & Stroud to provide pure air for the Joule Thomson minocoolers which are used to cool the infra-red detectors in Barr & Stroud's IR18, the UK common module thermal imager and other infra-red systems.
Hymatic are setting up a production line and with more than 30 years experience in the manufacture and supply of Joule Thomson minicoolers and associated pure air generating equipment are uniquely suited to manufacture and market the new air supply unit on a worldwide base.
The QK Compressor has been designed for military service environ- ments and has been engineered for high reliability. In its standard form the unit is supplied complete with a transport case and ready for con- nection to the inlet port of a thermal imager. However, it is of modular
A high pressure, pure air QK compressor
construction and can be easily con- figured to suit particular installation constraints.
Hymatic Engineering Company Limited, Burnt Meadow Road, North Moons Moat, Redditch, Worcs. B98 9H J, UK
Heat recycling chiller from Watford Refrigeration Using the heat ejected from a chiller to heat a building in winter time rather than discharging it to the atmosphere has always seemed an attractive idea, but it has often been regarded as impractical because of the additional planning or expendi- ture involved. Watford Refrigeration have now evolved a chiller package in which heat re-claim for use elsewhere in a building is a standard feature.
With cooling duties ranging from 10 to 150kW, these chiller packages may be used for chilling water for
drinking or process use, or for cooling a variety of other fluids. With the rate of heat discharge being about one- third greater than the cooling duty (the additional third resulting from the power needed to drive the unit) the ability to re-use this heat repre- sents an enormous saving. In the summer, when this heat is not needed, a series of dampers built into the package, enables the air carrying the waste heat to be vented to the outside of the building; while the air drawn in to replace it serves to increase the overall ventilation.
Typical applications for the heat recovery chiller package have been supplying chilled water for bakery dough mixing, hydraulic oil cooling for milling machines, autoclave cool- ing, and in the milk/beverage pack- aging indust.ry. These chillers can also be used with non-freezing solutions t o achieve temperatures down to - 3 0 ° C .
Watford Refrigeration & Air Con- ditioning Limited, Wiggenhal Indus- trial Estate, Watford WD 1 8AW, UK
Rev. Int. Froid 1985 Vol 8 Septembre 315
