Radiative Cooling and Air Conditioning System with Enhanced Efficiency and Humidity Resilience

Case ID:
UA24-200
Invention:

This technology is a radiative cooling and air conditioning (RC/AC) system that is highly efficient, performs under humid conditions, and is minimally impacted by parasitic heating (inherent loss of energy due to inefficiencies in an RC/AC system). These benefits are accomplished through the incorporation of three innovative components in the RC/AC system: a broadband solar reflector capable of reflecting the entire solar spectrum which makes daytime radiative cooling possible; the use of fluids and gasses with high thermal emissivity as the working fluid, making heat exchange between the system and surrounding environment as efficient as possible; and an angular shield designed to block incoming thermal radiation and reduce the impacts of water vapor on cooling efficiency, minimizing the impacts of parasitic heating and allowing for efficient operation in humid environments. The compact design of the system makes it ideal for use in commercial and residential settings. 

Background: 
Air conditioning systems have many limitations, such as electrical issues, leaking ducts, and/or refrigerant leaks or low levels that cause the unit to underperform or not function properly, all while expending additional energy and increasing cost to users. High humidity can make it difficult for AC units to effectively cool because it's more difficult to remove moisture from the air. This system addresses the key limitations of current AC systems while reducing energy consumption, providing an environmentally friendly alternative to traditional air conditioning systems.

Applications: 

  • Radiative cooling and air conditioning (RC/AC) systems
    • Residential use
    • Commercial use
  • Environmental sciences 
  • Renewable energy
  • Data centers


Advantages: 

  • Increased efficiency
  • Functional in humid environments
  • Minimally impacted by parasitic heating
  • Environmentally friendly design
  • Compact design
Patent Information:
Contact For More Information:
Richard Weite
Senior Licensing Manager, College of Optical Sciences
The University of Arizona
RichardW@tla.arizona.edu
Lead Inventor(s):
Mohamed ElKabbash
Keywords: