HVAC


Reducing energy consumption of air-conditioners

During the twenty-second meeting of the Conference of Parties on Climate Change in Marrakesh (COP22) last November, Didier Coulomb, director-general of the International Institute of Refrigeration, put pressure on the refrigeration and air-conditioning sector to improve energy efficiency and reduce HFCs, to meet the pledges of Kigali Amendment and the Paris Agreement to significantly reduce global emissions and energy consumption.

Kigali Agreement Creates ‘Orderly Phasedown’ of HFCs

On Oct. 15, 2016, representatives from more than 170 countries met in Kigali, Rwanda, and agreed to a legally binding accord under the Montreal Protocol to reduce worldwide use of hydrofluorocarbons (HFCs).
Stephen Yurek, president and CEO of the Air-Conditioning, Heating, & Refrigeration Institute (AHRI), recently discussed the Kigali Agreement and some of the effects it may have on the HVACR industry.

Natural refrigerants: current developments and trends

The decision as to which refrigerant should be used in a refrigerating or air-conditioning system is based on the major criteria of safety, costs and environment protection. But against the background of constantly increasing energy prices, the energy consumption of a system also plays an increasingly important role. Ideally, the chosen refrigerant should have excellent thermodynamic properties, high chemical stability and good physical characteristics. Furthermore, it should have no or only a negligible impact on the environment, while also being inexpensive and available worldwide.