The current edition of Refrigerants Review is complete. We thank all our sponsors, partners and everyone who supported us in making this event a success! We look forward to welcoming you again for the next edition of the event.

Key Topics

  • Is R410A (GWP of 2,088) still the best bet for the dominant DX sector? With the phase down of HFCs in Europe, the price of R410A has climbed to unprecedented levels, a cause for concern among contractors, plus its availability in adequate volumes for new and existing buildings. What are the implications for the Middle East region?
  • How do the mildly flammable R32 (GWP of 675) and the nonflammable Solstice N41 or R466A (GWP of 733) stack up from a climate change mitigation point of view? What is the perception towards them, in relation to their GWP numbers? Do GWPs around the 700-level mark work in their favour, given that there is a growing clamour for refrigerants that are around the 400-level mark?
  • Are contractors open to dealing with even mildly flammable refrigerants?
  • The long-winded search for a long-term solution: What is the significance of a high-speed compressor working with a low-pressure refrigerant (DR-12 or HFO 1336mzz(E) that comes with the avowed promise of having a low GWP (32), of being non-toxic and nonflammable, under normal operating conditions, and of offering stability and compatibility with polyolester oil and with such metals as aluminium, copper and steel during tests carried out at 175 degrees C? Can it be used in VRF systems, with its avowed non-flammable and non-toxic nature unburdening contractors and building owners from the need for installing leak detection and specific ventilation technology?
  • Is non-flammability a clincher for deployment in most DX units, given that building codes are becoming tighter from a fire safety point of view?
  • On the other hand, are there challenges involving low-pressure refrigerants? Are scroll and rotary technologies compatible with lowdensity refrigerant systems? Or, would large increases in volumetric flows be seen as a necessity to match the cooling capacity provided by R410A?
  • Is a flow volume of nearly 20 litres per second, as facilitated by new highspeed screw compressor motors, an ideal riposte?
  • What are the implications for manufacturers? Is there a need for undertaking substantial redesign towards producing a compressor that matches R410 air conditioning applications? Or do the possibility of bypassing the need for unbalancing components in the forms of pistons and discharge valves provide screw compressors with an advantage at high-speed operations?
  • Amidst all this, what inroads have R290-based split air conditioning systems made with regard to safety and availability
  • Selecting alternative refrigerants: A need for a sector-by-sector approach?
  • Illegal trade in refrigerants: The urgent need to tackle the menace
  • Refrigerants recovery