RACA Journal : ISSN 1812-772X
Africa ’ s only monthly publication serving the HEVAC & R sectors
PUBLISHER DETAILS
ISSN 1812-772X
April 2021 I Vol 37 No 2
PUBLISHED BY INTERACT MEDIA DEFINED ( PTY ) LTD 13A Riley Rd , Bedfordview 2009 , South Africa PO Box 695 , Edenvale , 1610 Tel : + 27 ( 0 ) 11 579 4940 | Web : www . interactmedia . co . za
PUBLISHING UNIT LEAD : Dale Macnamara | dale @ interactmedia . co . za EDITOR : Benjamin Brits | benjamin @ interactmedia . co . za
ADVERTISING EXTERNAL SALES Dale Macnamara | sales @ interactmedia . co . za Zeldalee du Toit | zeldalee @ interactmedia . co . za
SUBSCRIPTIONS : Maxlee Marange | mmarange @ interactmedia . co . za Ralph Shongwe | ralph @ interactmedia . co . za
SUB-EDITOR : Tarren Bolton | tarren @ interactmedia . co . za TECHNICAL SUB-EDITOR : Charles Nicolson
DESIGN AND LAYOUT : Glyniss Bone | glyniss @ interactmedia . co . za PROCESS COORDINATOR : Lebo Bucibo | lebo @ interactmedia . co . za
CONTRIBUTORS Charles Nicolson , Grant Laidlaw , Barney Richardson , Andrew Perks , Michael Young and Neziwe Moleejane .
ADVISORY COMMITTEE Martin Braun , Charles Nicolson , Grant Laidlaw , John Parry , Alec Johannsen , Charel Marais , Annemarie Wake , Ralph Cramer and Pat Burke .
MANAGEMENT Operations / Finance : Sean Macnamara | sean @ interactmedia . co . za Finance : Laetitia Arnott | laetitia @ interactmedia . co . za
Contents
REGULARS 1 Hot and chilled 5 Quote of the month 23 Personality profile : Gert van Rooyen 51 Products 56 Final Fix
NEWS 3 Young engineers in ASHRAE look forward to further technical tours 5 SFI Group announces takeover of Almag Refrigeration
INTERNATIONAL NEWS 7 Robots to change the way buildings are designed , constructed and used 9 Beijer Ref acquires yet another HVAC business
FEATURE 11 Ice storage : a solution for many applications , even future energy demand 19 The right tool for the job , and using it correctly
PROJECT 24 New data centre provides reference points for global digital and telecoms group
PRINTER : Typo Colour Printing Specialists DISTRIBUTION / MAILING : distribution @ interactmedia . co . za
ENVIRONMENT-FRIENDLY PRINTING : All paper is sourced from the Forest Stewardship Council and Chain of Custody-certified suppliers . All wastepaper from the plant is recycled . All used plates are recycled . All new printing equipment is purchased for low energy-consumption levels and low volatile organic-compound emissions .
DISCLAIMER : While every reasonable precaution has been taken to ensure the accuracy of the advice and information given , neither the editor , publisher , proprietor , staff , nor any official body represented or published in this issue , will accept responsibility for any damages , loss , injuries , or false claims that may arise or be made in the content . Including but not limited to any references to gender , religion , politics , ethnicity , or personal preferences of any editorial contribution whether an industry expert , advertiser through sponsored or paid content or contract writer . We subscribe to the Codes of Conduct of the Advertising Standards Authority ( www . asasa . co . za ) and the Press Ombudsman ( see below ). Disclaimers by individual companies are hereby overridden by this disclaimer .
CONTRIBUTORS |
33 |
Getting technical : Vaccines remove or reduce risks of dangerous infections |
37 |
Support : Safe working practices and R32 |
41 |
From the industry : VRF or chilled water – it ’ s your bottom on the line |
43 |
Women in HVACR : How the business environment has changed since Covid-19 |
TECHNICAL |
45 |
Natural refrigerant-based chillers |
47 |
Heat exchangers – a basic introduction to fin and tube designs |
COPYRIGHT : Reproduction of any of the content and photographs is expressly forbidden in terms of the Copyright Act of 1987 with all amendments . All requests to reproduce must be made in writing to the publisher and such confirmation must be given in writing before proceeding . A copy of where the reproduction was published must be supplied to the publisher at the above address . All publication and exhibition titles are registered as trademarks in terms of the Trademarks Act of 1993 and are held by Interact Media Defined ( Pty ) Ltd , Reg No 2014 / 092774 / 07 . |
|
|
PRESS OMBUDSMAN : This publication has committed itself to maintain the highest standards of journalism as embodied in the Press Code of Professional Practice . If you believe we have failed to report news and comment accurately , honestly , and fairly , you may lodge a complaint with the Press Ombudsman either by email , fax , or letter , or by telephoning the office for the procedure to be followed . Website : www . ombudsman . org . za for the press code and complaints procedure .
When measurement matters
Oct - Dec 2020 Print : 2708 Online : 4693
|
COVER SPONSORED BY : Mitsubishi Electric Airconditioners
24
New data centre provides reference points for global digital and telecoms group
2
RACA Journal I April 2021
|
Heating | Energy | Ventilation | Air Conditioning | Refrigeration FEATURE
PROJECT TECHNICAL
COVER SPONSORSHIP
Ice storage : a solution for many New data centre provides reference points
Heat exchangers – a basic introduction Mitsubishi Electric Airconditioners applications , even future energy demand for global digital and telecoms group to fin and tube designs
www . hvacronline . co . za
|
Cover image by AOS Consulting Engineers |