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The August technical talk for the South African Institute of Refrigeration and Air Conditioning (SAIRAC) KwaZulu-Natal centre was all about air conditioning. 

The technical talk took place on 30 August and was presented by Luke Jevon from Smiths Manufacturing and Denso.

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From left are: Arie Van Vuuren, Cyril Maurel (SAIRAC KZN chairman) and Aziz Zuberi.

Jevon’s talk looked at the following aspects of automotive air conditioning:

  • Typical AC systems
  • System operation
  • Manual and auto systems
  • Different sensors for control
  • HVAC system: typical
  • HVAC system: temperature adjustment
  • Positive Temperature Coefficient (PTC) heaters and hot gas systems
  • Fuzzy control and neural network control
  • Compressors: benefits of rotary and reciprocating compressors
  • Clutches: single groove, double groove and multiple grooves
  • Condensers: advancements
  • Evaporators: advancements
  • Expansion valves
  • Recycling and recovery machines

During the meeting, membership certificates were also handed out to new associate members.

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Luke Jevon from Smiths Manufacturing and Denso gives his talk on automotive air conditioning.

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