Air conditioners in a Warmer World straining the grid. Efficient cooling options will play an important role in curbing the increase of cooling-demands
, there is a push for cooling systems with smaller environmental footprints. In addition to more energy efficient systems, this includes changing standards for refrigerants.refrigerants will be phased out in the next few years in favor of more environmentally friendly hydrofluoro-olefins . HFOs have a global warming potential near zero, which means that emissions of HFOs hold much less relative heat in the atmosphere compared to emissions of hydrofluorocarbon refrigerants.
In an invited article to the Accounts of Chemical Research, Motkuri and his coauthors provided this cover illustration that shows how the chemistry between the refrigerant and solid sorbent materials in an adsorption cooling system can be fine-tuned to affect its cooling capacity and energy efficiency. Reprinted with permission from Accounts of Chemical Research 2022 55 . Copyright 2022 American Chemical Society.
Aware of this transition, Motkuri and his collaborators conducted their testing using the readily available, inexpensive hydrofluorocarbon refrigerant, R-134a. This hydrofluorocarbon refrigerant has a high global warming potential, but a similar chemical behavior to HFOs, which makes it a suitable alternative for studying the molecular interactions of adsorption cooling systems that will use HFOs in the future.
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