Hybrid Passive Cooling for Power Equipment Enabled by Metal-Organic Framework
Xiangyu Liu1, Pengli Li1, Yijie Liu2
1Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Department of Polymer Science and Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China.
Advanced Materials (Deerfield Beach, Fla.)
|September 6, 2024
Summary
A new hybrid passive cooling composite offers sustainable, low-energy cooling for power equipment. This innovative material significantly reduces equipment temperatures, enhancing electrical system reliability and reducing grid load.
Area of Science:
- Materials Science
- Thermal Engineering
- Sustainable Energy
Background:
- Power equipment generates significant heat during operation, necessitating energy-intensive cooling systems.
- Existing cooling methods increase overall energy consumption and strain the power grid.
- Developing sustainable, low-energy cooling solutions for power infrastructure is critical.
Purpose of the Study:
- To introduce a novel hybrid passive cooling composite for heavy-load power equipment.
- To enhance heat dissipation efficiency in outdoor power systems.
- To reduce the operational temperature of critical electrical infrastructure.
Main Methods:
- Development of a hybrid composite material integrating radiative and evaporative cooling principles.
- Characterization of the composite's solar reflectance and atmospheric water harvesting capabilities.
- In-situ testing of the composite's performance on outdoor heavy-load power equipment.
Main Results:
- The composite achieved an average solar reflectance of up to 0.98.
- Effective atmospheric water harvesting enabled high evaporative cooling without external water input.
- A significant temperature reduction of 25.3°C was observed in outdoor heavy-load power equipment.
Conclusions:
- The hybrid passive cooling composite demonstrates exceptional performance in enhancing heat dissipation.
- This technology offers a sustainable and low-energy solution for cooling power equipment.
- The composite can improve the reliability and longevity of electrical systems by mitigating thermal stress.
Keywords:
metal‐organic frameworksradiative coolingsorption‐based evaporative coolingthermal managementMore Related Videos
Related Concept Videos
01:19Mechanism of heat transfer
2.3K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
2.3K
01:20Mechanisms of Heat Transfer II
5.4K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
5.4K
01:07Refrigerators and Heat Pumps
3.3K
Refrigerators or heat pumps are heat engines operating in a reverse direction. For a refrigerator, the focus is on removing heat from a specific area, whereas, for a heat pump, the focus is on dumping heat into one particular area. A refrigerator (or heat pump) absorbs heat Qc from the cold reservoir at Kelvin temperature Tc and discards heat Qh to the hot reservoir at Kelvin temperature Th, while work W is done on the engine’s working substance.
A household refrigerator removes heat from...
A household refrigerator removes heat from...
3.3K
01:14Mechanisms of Heat Transfer
2.1K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
2.1K