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HFO-based Turbomiser chiller goes into production

The first Turbomiser chillers running on the new HFO refrigerant have been launched.

They will initially be based on HFO-1234ze, which is claimed to have a Global Warming Potential (GWP) of 6, compared with up to 2000 for some HFC refrigerants.

The developers, Klima-Therm and Cool-Therm, anticipate that versions will shortly be available to run on HFO-1234yf (GWP of 4), once it becomes available in commercial quantities.

The company believes that low GWPs of 4 using HFOs will result in a competitive BREEAM rating and low carbon footprint - no change in chiller design is required for HFOs.

Although total available compressor capacity is reduced, it will be offset by more efficient cooling, the firm says.

The chiller uses a combination of advanced adiabatic technology, liquid pump amplification (LPA), micro-channel condensers and Turbocor compressors to cut energy use by up to 50 per cent. In some cases, reductions of up to 60 per cent have been recorded.

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