RACA Journal August 2022 | Page 24

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Events and Exhibitions
• Energy efficiency in hydronic cooling distribution systems . In general , the topic dealt with in this workshop was energy efficiency in central air-conditioning ( cooling ) hydronic systems from the centralised production site to local sub-stations and terminal units . Architecture of chilled water distribution systems and the design and installation of heat pumps and polyvalent heat pumps was covered . Presented by Luigi Rossettini ( international speaker ) from Aersa / Aermec .
• Servitisation in refrigeration and how it supports the use of natural refrigerants and shifts the focus sharply to life-cycle cost . Servitisation is a well-known tool in many industries and is a relatively new concept in refrigeration known more commonly as Cooling as a Service ( CaaS ). Preented by Dawie Kriel of Energy Partners .
• The status quo of air conditioning and refrigeration training in South Africa . It covered the latest qualification outline and addressed regular questions involving natural refrigerants , flammable hydrocarbons , apprenticeships , qualifying staff , trade testing , and future training changes and additions . Presented by Grant Laidlaw of ACRA .
• Driving a circular economy and the latest refrigerant trends . The topic included the use and disposal lifecycle for refrigerants and why there is a need to change our outlook on how we deal with refrigerants ( phaseout and quota mechanism ). Presented by Werner Terblanche from A-Gas South Africa .
• Prevention by design educated participants about the basic elements of SANS 893 : Legionella … , as it relates to evaporative cooling equipment . Using the specific written guidance of the SANS 893 documents , it was demonstrated how the proper design , operation and maintenance of evaporative cooling equipment helps to reduce hygiene risks and facilitate better compliance with the guidance and recommendations of SANS 893 . Presented by Robert Downey ( international speaker ) from Baltimore Aircoil Company .
• Using plate heat exchangers in closed circuit cooling towers to save on OPEX and CAPEX highlighted the cost saving benefits of using plate heat exchangers as a substitute for coils . Presented by Louw Nagel of Industrial Water Cooling . RACA
Please view the official FRIGAIR website to gain access to all of the exhibitors at www . frigairexpo . co . za
In future issues of both Cold Link Africa and the RACA Journal we will be publishing all of the technology , products and services showcased at FRIGAIR 2022 .
You can also already diarise the dates for FRIGAIR 2025 which will take place again at Gallagher Convention Centre between 4 – 6 June , 2025 !
There were over 3000 visitors from all levels , and from all around the country . Representation also included several guests from Namibia , Botswana , Zimbabwe and Kenya – as well as guests from Italy and America .

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RACA Journal I August 2022 www . refrigerationandaircon . co . za