Test cooling system that works without electricity

U.S.A.. Stanford University is currently testing an innovative cooling technology that uses radiative cooling from the sky. The radiative cooling of the sky is a mechanism that allows cooling to temperatures below the environment without electricity or water evaporation.

In this approach, heat is passively rejected in outer space by exploiting the fact that the Earth's atmosphere is partially transparent to the thermal infrared radiation.

In an 2014 study, the Stanford researchers showed the cooling capabilities of a mirror-like optical surface they were testing on the roof of the Packard Building at Stanford. Other research published in September by 2017 showed that a system that involves these surfaces can cool the water that flows at a lower temperature than the surrounding air.

- Advertising -

In fact, in the system tested by the researchers, the panels covered in the specialized optical surfaces could consistently reduce the water temperature from 3 to 5 ° C below the ambient temperature during a period of 3 days. In a simulation where their panels covered the roof of a commercial office in the hot weather of Las Vegas, the scientists calculated that the panel-cooled system would save 14.3 MWh of electricity, which represents a reduction of 21% in the electricity used to cool building.

"This research is based on our previous work with radiative cooling from the sky, but it takes it to the next level." For the first time, it provides a demonstration of high fidelity technology of how radiative cooling of the sky can be used to passively cool a fluid and, in doing so, connect it to cooling systems to save electricity, "said Aaswath Raman, who is a senior co-author of the paper detailing this research, published in Nature Energy's September 4.

The radiative cooling of the sky is a natural process that everyone and everything does, as a result of the moments when the molecules release heat. It can be witnessed in the heat that comes out of a road, since it cools down after sunset. This phenomenon is particularly noticeable on a cloudless night because, without clouds, the heat that we radiate and everything around us can more easily reach through the Earth's atmosphere, to the vast and cold confines of space.

At this time, researchers are measuring the energy saved when the panels are integrated with traditional air conditioning and refrigeration systems in a test facility; Fan, Goldstein and Raman are optimistic that this technology will find wide application in the years to come. Researchers focus on making their panels easily integrated with standard air conditioning and refrigeration systems and are particularly excited about the prospect of applying their technology to the serious task of cooling data centers.

Source: Stanford.

Quoting products and technical services for Latin America

Latest Posts

    • Avatar for paulfer_112
    • LITHIUM BROMIDE
    • You could help me with the information of some contact, just like you, I need it for an absorption system
    • Avatar for paulfer_112
    • LITHIUM BROMIDE
    • You can help me with the information of a supplier of LITHIUM BROMIDE in small quantities in Colombia, I look for it to perform tests of ...

Latest Reviews

  • Very good point, it seems to me that in the long term this will contribute to reduce the carbon footprint.

    Read more...

     
  • Hello Fredy, write to us at editorial@acrlatinoamerica.com and we can put you in touch with the people of ...

    Read more...

     
  • Dear, can you help me with the information to calculate the efficiency and performance in a system ...

    Read more...

     
  • Hello Lucio, It is best to have the condensed water from the air conditioning drain down ...

    Read more...

     
  • How much health affects wastewater from air conditioning exposed to the outdoors?

    Read more...

Latin Press
Portales, events, magazines and specialized media
Expos & Conferences
specialized events
Induguia
Guide for HVAC & refrigeration suppliers
Audiovisual systems
Weatherization Solutions
Operation Building Solutions
Paint & Coatings
Electronic Security Solutions
Broadcast Television and New Media
Modern Buildings Management
Audiovisual Systems in Brazil
Audiovisual systems in Colombia
Audiovisual Systems in Mexico
Commercial and Industrial Refrigeration
Operator Meetings and Conferences
Corporate travel

Research Services:
Lead Generation
Data Works and Projects
Multimedia production
Databases
Business surveys
Air conditioning - Components
Air conditioning - Air Difusion
Air conditioning - Compact equipment
Air conditioning - Water Equipment
Air conditioning - Computer equipment rooms
Air conditioning - Hot air generators
Air conditioning - Multi-split cold / heat pump
Air conditioning - Water Systems
Air conditioning - cooling systems
Air conditioning - Split cold / heat pump
Air conditioning - Cooling Towers
Air conditioning - Air treatment
Boilers - Accessories and components
Heating - Accessories Installation
Heating - Heat Emitters
Heating - heat generators
Vent Dampers
pipelines
Control equipment
Measuring Equipment
Personal protective equipment
Regulating equipment
Welding equipment
fancoils
Tools
Tools - Auxiliary for installations
Tools - service vehicles
Radiators - Accessories and components
Recuperative ventilation
Refrigeration - Components for refrigerators
Commercial Refrigeration
Industrial refrigeration
Sodas
Software for Installation
Wastewater treatment
Ventilation - Fan Accessories
Blower