About this presentation

related to ATMOsphere Europe 2013
published on 16 October 2013
9 pages
636 KB

Paul Alway talks about UK retailer Marks & Spencer (M&S) experience of using pumped CO₂ cascade refrigeration systems in 82 out of their 500 food halls. The retailer has trialled several different CO₂ cascade systems, including systems using CO₂/hydrocarbons, CO₂/R404a and CO2/R134a. However, due to the complexity of these systems and as the retailer’s goal is to become HFC-free and to integrate heat reclaim, the question facing M&S today is whether to develop an HFC-free front end for the current installed base of CO₂ pumped systems, or transition to CO₂ transcritical.

About the speaker(s)

Paul Alway

 

A highly experienced refrigeration engineer with over 25 years experience in the industry covering manufacturing, consultancy, design and research. The last seven years have been spent working directly for retailers in the UK (Tesco, Marks and Spencer) implementing change programs for the roll out of Transcritical CO₂ systems, maintenance work on existing cascade and LPR CO₂ systems and major energy reduction programmes. Paul is now working as Design Director for AB Group to continue to build on their ongoing success in the use of natural refrigerants.