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1 Dec 2007

Alternative Refrigerants: The A-Zero of refrigerants

The availability of so-called natural refrigerants has opened up a host of options for those companies looking for alternatives to fluorocarbons as Reg Brown of BSRIA explains.

1 Dec 2007

Alternative Refrigerants: Microporous solids-the refrigerant of the future?

Following a three-year investigation into alternatives, Thermal Energy Systems under John Poole has opted for the development of the compressor-driven adsorption/desorption of CO2 on microporous solids.

1 Dec 2007

Coldstores: No time to chill out

With growing concerns about climate change and electricity costs soaring, the cold storage and distribution sector faces a challenging future, according to Laurie Fisk, Cold Control’s technical director

1 Dec 2007

SHOP TALK

A round-up of supermarket news and gossip

1 Nov 2007

Valves and Fittings: Embrace new ideas

Proportional balancing is still widely used for commissioning variable volume fan coil systems, but is it the best way? Martin Lowe, technical manager at Marflow Hydronics, suggests a faster and more practical method

1 Nov 2007

Product Development: Sales through the roof

THE resurgence in popularity of rooftop units in the commercial environment, allied to a need to replace the tens of thousands of old units out there running on R22, has led to increasing sales of this type of unit.

1 Nov 2007

Compressors: From the grave to the cradle

WORKING in conjunction with sister company McQuay, J&E Hall has developed a means to remanufacture scroll compressors, a technique which further reduces the acr industry’s impact on the environment.

1 Nov 2007

Compressors: The driving force is remanufacturing

IN A bid to reduce carbon emissions, are we sometimes doing more harm than good? The July edition of ACR News highlighted instances where the manufacture, purchase and installation of new raw material is more detrimental to the environment than opting to remanufacture, refurbish or repair.

1 Nov 2007

SHOP TALK

A round-up of supermarket news and gossip

1 Nov 2007

Compressors: Using the right tools – it’s essential

If compressors are the heart of any refrigeration system, then the service engineer’s tools are the equivalent of a surgeon’s scalpel and forceps. Kevin Glass, engineering manager at Bitzer UK, takes us through the most essential

1 Nov 2007

Compressors: Digital scroll for low temperatures

BUILDING upon its experience in medium temperature, Copeland is now launching a Digital Scroll dedicated to low temperature applications. The strength of this new model, ZFD18KVE, is the combination of digital and vapour injection technology. and offers energy efficiency as good as the best Copeland semi-hermetic compressors, says the company.

1 Nov 2007

Refrigerant Leaks: Leak prevention has savings in store

FAR from being an unwanted imposition, many end-users are beginning to recognise the benefits of implementing more stringent leak-protection procedures as demanded by the F-Gas regulations. For larger refrigeration plants, a permanent leak-protection system is now, a not inconsiderable investment but one which can bring unexpected benefits.

1 Nov 2007

Valves and Fittings: A symphony of valves

Titan’s pitch is its perfect range and fine delivery

1 Oct 2007

Refrigerants: Refrigerants: no longer just a gas

TWENTY-ODD years ago we never worried too much about refrigerants. Like fuel in a motor car, providing you put the right stuff in and it wasn’t horribly contaminated, your vehicle would run quite happily – at least until some crucial component expired. Then came the ozone layer and, later, global warming and suddenly the humble gas that is the lifeblood of all air conditioning and refrigeration was at the forefront of the environmental debate.

1 Oct 2007