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TENTATIVE DATES COURSES 2019 - Day 1 - PSYCHROMETRIC - JANNIE POTGIETER
07-05-2019 6:00 pm
Category:  Johannesburg
KZN TECHNICAL TALK 2019 - ROWAN VAN WYK (CONTROLS)
09-05-2019 6:00 pm
Category:  Durban
Westville Country Club

All about ammonia for industrial refrigeration

The 28 March SAIRAC Johannesburg centre monthly technical talk was incredibly informative as Hannes Steyn from GEA came from Cape Town to share his knowledge on ammonia systems and their potential. 

The South African Institute of Refrigeration and Air Conditioning (SAIRAC) meeting was well attended and lively, despite some issues with traffic. It took place at ACRA in Chloorkop and it was exciting to see a great mix of familiar faces and new blood.

Robert Fox, the Johannesburg centre vice chair, kicked things off with the formalities, handing out new member certificates and welcoming them to the association. He also spoke about the centre’s events, including the golf day past and various upcoming courses and talks not to be missed (including the prestigious Dreosti Memorial lectures in June).

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Hannes Steyn from GEA presents on ammonia systems.

He then handed over to the centre chair, Jaco Pieterse, who was excited to announce a new agreement between SAIRAC and the Institute of Refrigeration (IoR). He chatted about the benefit this would hold to members (including discounted fees and access to publications and webcasts).

Then it was time for the official technical talk, presented by GEA director Hannes Steyn, who has done the talk at some of the other SAIRAC centres as well. He shared some interesting pictures of plants and projects, going through the entire ammonia system one component at a time to explain how various options compare. He advised that it’s key to consider total cost of ownership when designing an ammonia plant.

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SAIRAC’s Robert Fox (centre) hands out new member certificates to these four gentlemen.

Steyn kicked things off by looking at the pros and cons of ammonia as a refrigerant before moving onto how to approach the design of a basic ammonia system. From compressors to condensers, evaporators, pumps, accumulators and everything in between, Steyn talked his audience through the various elements of the system.

He ended things off by looking at typical contamination of an ammonia system and how to avoid it, sharing a final word on safety to ensure zero harm to people as well as the environment.

Afterwards everyone enjoyed dinner and drinks.

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Jaco Pieterse explains the agreement between SAIRAC and IoR.

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