Unlock instant, AI-driven research and patent intelligence for your innovation.

Radiation cooling coating and surface coating method

A radiation cooling and coating technology, applied in reflection/signal coatings, devices for coating liquid on surfaces, coatings, etc., can solve the problems of large energy consumption and energy consumption of air conditioning systems

Active Publication Date: 2022-06-28
CITY UNIVERSITY OF HONG KONG
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the main driver of electricity demand in buildings, air-conditioning systems consume large amounts of energy
Specifically, the compressors in traditional air conditioning systems consume a lot of energy, and the use of refrigerants is a major cause of ozone layer depletion and climate change

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Radiation cooling coating and surface coating method
  • Radiation cooling coating and surface coating method
  • Radiation cooling coating and surface coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] For objects with a temperature between -40°C and 40°C, the emitted radiation is mainly concentrated in the wavelength range of 8 μm to 13 μm, in which the atmosphere has a relatively high radiation transmittance. Therefore, radiation in this band is easily transferred to the cold outer space with a temperature of about -273°C to achieve cooling. At night, since there is no solar radiation, radiative cooling dominates the heat balance, so the surface cooling effect is relatively easy to achieve. However, the surface cooling effect may be difficult to achieve during the day.

[0041] Without wishing to be bound by theory, typical coatings have limited cooling effects. For example, a typical white paint only reflects about 80% of incident visible light, while still absorbing a lot of infrared and ultraviolet light. As another example, traditional thermal insulation coatings can aid cooling by increasing the reflectivity of the material, but these materials are not as ref...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a radiation cooling coating and a surface coating method. The radiation cooling coating comprises a mixture comprising a polymer wherein the mixture is capable of curing to form a porous structure and the porous structure is arranged to help reflect solar radiation out of a surface coated with the radiation cooling coating and dissipate heat by thermal radiation. The invention also provides a surface coating method using the radiation cooling coating. The white porous coating provides high reflectivity in the ultraviolet, visible light and near-infrared range and provides high emissivity in the middle-infrared range, so that the white porous coating also shows a passive radiation cooling effect under direct sunlight radiation. The coating only uses low-cost and non-toxic green materials, so that the coating is suitable for large-scale application. Due to the fact that a traditional air conditioner uses a refrigerant and a compressor for cooling, not only is the ozone layer damaged, but also great noise is generated, and therefore the air conditioner can become a more environment-friendly air conditioner substitute.

Description

technical field [0001] The invention relates to coatings, in particular to radiation cooling coatings, and also to a method for coating surfaces with radiation cooling coatings, belonging to the technical field of coatings. Background technique [0002] In reality, there are multiple ways to achieve cooling, for example, using an air conditioning system. However, as the main driver of electricity demand in buildings, air conditioning systems consume a lot of energy. Specifically, the compressors in conventional air conditioning systems consume a lot of energy, and the use of refrigerants is a major cause of ozone depletion and climate change. [0003] It is an object of the present invention to address the above-mentioned needs and to overcome or substantially ameliorate the above-mentioned disadvantages. SUMMARY OF THE INVENTION [0004] According to a first aspect of the present invention, there is provided a radiative cooling coating comprising a polymer-containing mi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D127/16C09D5/33C09D7/20B05D1/02B05D1/28B05D7/24
CPCC09D127/16C09D5/004C09D7/20B05D7/24B05D1/02B05D1/28
Inventor 陈思如曹之胤林凯昕白晟熙赵贤亮李孝谦何梓聪
Owner CITY UNIVERSITY OF HONG KONG
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com