ACR Journal

VOLUME 7 No5 AUGUST/SEPTEMBER 2021 acrjournal.uk ISSN 2058-4407 Essential Information for theAirConditioningandRefrigeration Industry CMYK / .aiCMYK / .ai CMYK / .ai NEW DATE!! 20/10/2021 2021 10th THEMIDLAND HOTEL MANCHESTER QUICKER FREEZING TIMES NEEDED? THE BITZERACP MAKES IT POSSIBLE. BITZER Ammonia Compressor Packs (ACP): a compact solution for industrial refrigeration. Intelligent control ofmultiple compressors provides the best reliability and efficiency in their class. Learnmore at bitzer.de/acp_en ACP Ad_Ref_ACP_freezing_EN_ACRcover_188x208.indd 1 09.07.21 14:06 Editor Andrew Slater acr.editor@warnersgroup.co.uk Multimedia Sales Executive Robyn Teague 01778 395029 robyn.teague@warnersgroup.co.uk Editorial Design Amanda Clare Advertising Design Natalie Reynolds Production Sue Ward 01778 392405 production@warnersgroup.co.uk Publisher Juliet Loiselle CompCIPHE/MInstR 01778 391067 julietl@warnersgroup.co.uk Published by: Warners Group Publications Plc The Maltings, West Street, Bourne, Lincs, PE10 9PH 01778 391000 01778 394748 www.warnersgroup.co.uk © Copyright 2020 PRINTED BY WARNERS 01778 395111 Since our last edition, it has been a period of celebration, with World Refrigeration Day, International Women in Engineering, the IOR awards for RACHP Engineering Technician Lifetime Achievement, and the Kenneth Lightfoot Medal. Without forgetting the announcement of previous Women in ACR participant Linda McVittie being named in the Women in Engineering Society’s Top 50 Women in Engineering for 2021. Events and recognitions like these help us remember that our industry is full of exceptional people in their own right, with most working quietly in the background, making a considerable impact. So it’s a pleasure to mention in this edition Mike Nankivell and his richly-deserved OBE, Kevin Gregory, the team at London South Bank University, along with Lisa-Jayne Cook and this month’s Woman in ACR Karen Perry, all exceptional role models. We feature various topics that widely cover the refrigeration sector from computer-aided design, refrigerant discussions, best practices and equipment end of life recycling. Also, a STEMazing update discusses how we attract a new generation into the industry - intentionally rather than falling into it as it appears most of us have done! I hope you enjoy this edition of ACR Journal. Andy 46 03 CONTENTS CMYK / .ai CMYK / .ai CMYK / .ai acrjournal.uk REGULARS 4. News Key industry updates 24. Toolstalk 25. Design Focus Changing the gas inheritance 35. Mitsubishi Electric So is it all back to normal? 46. Women in ACR Karen Perry of Daikin 48. The Innovation Zone The latest products and launches 50. Changing Faces Who’s new and who’s moved 52. Chilly Chatter FEATURES 14. Why BIM is the model design process for ACR installations 16. R470A – the only non-flammable replacement for R410A 18. Advantages of closed-loop equipment for process cooling 22. Innovating in the refrigeration compressor space 26. Picking the right pipe 28. Brazing - there’s more to it than just heat 30. Three steps to foolproof isolation 32. Low GWP Refrigerants - Why use A2Ls? 34. Unstable glycol prices: Why it’s time to switch to DTX 36. Operational properties: why they are key 38. Pioneering approach to recovery and recycling of refrigeration assets 40. STEMazing Women 44. Members are key for BESA 22