Technical Progress in 60 years

Why heat transfer development is more difficult than moon landing?

Quantum Heat Transfer Technology

Innovatively integrate the two strengthening technologies of heating surface and heat transfer medium

Quantum heat transfer technology is the novel technology of enhancing boiling heat transfer, energy-saving, and carbon emission reduction.

Boiling Heat Transfer Enhancement

Isothermal heat transfer: βˆ†T < 3oC

Quantum Heat Transfer Mechanism

Quantum heat transfer is a technology of enhancing many-body thermal radiation to strengthen boiling heat transfer. Quantum medium is composed of nanoparticles with high emissivity and dielectric loss, and the closest-packing structure (𝒅 < 𝝀T) is established between the nanoparticles. During nucleate boiling in a vacuum cavity, the closest-packing structure strengthens the capillarity, emissivity, and dielectric loss of the heating surface. At the same time, the enhanced many-body thermal radiation is generated between the heating surface and nanoparticles. The quantum medium transfers heat isothermally (βˆ†T < 3oC) via many-body thermal radiation coupled heat conduction and boiling, thus increasing the critical heat flux and working temperature, and reducing the thermal resistance to achieve enhanced boiling heat transfer.

Inventions

Global Patents

Characteristics of Liquid Boiling Heat Transfer

Latent heat of vaporization & Cv decrease with temperature

Leidenfrost effect

Leidenfrost Effect and Quantum Heat Transfer

Nucleate Boiling
Transition Boiling
(Leidenfrost Effect)
Film Boiling

When Leidenfrost effect appears or deteriorates, thermal radiation is the main method to transfer heat.

Closest-packing Structure

Establish dynamic closest-packing structure
Self-assembly of electromagnetic forces between nanoparticles and liquid
Dynamic self-assembly of the closest-packing structures between nanoparticles
Particles in contact or d < 20 nm
Enhance the surface wettability, roughness, and capillary wicking performance
Generate enhanced many-body thermal radiation

Effects of the Closest-Packing Structure

Quantum Heat Transfer Coupling Heat Conduction and Boiling Heat Transfer

The Carrier of Quantum Heat Transfer Technology: Quantum Medium

Stability of DI Water vs Quantum Medium

The stability of quantum medium is superior to deionized water

Stability of DI Water vs Quantum Medium at Elevated Temperature

The stability of quantum medium is superior to deionized water

Specific Heat Capacity and Thermal Conductivity of Quantum Medium vs DI Water

Specific heat capacity of quantum medium is not obviously increased.

Thermal conductivity of quantum medium is not obviously increased below the Leidenfrost transition point.

Dielectric Constant of Quantum Medium vs DI Water

Dielectric Constant

Loss tangent

QM is prepared with 1g of quantum medium powder mixed with 100 ml of deionized water, its dielectric constant is 260.

Dielectric Constant of Quantum Medium vs DI Water

Real Part of Dielectric Constant

Imaginary Part of Dielectric Constant

Closest-Packing Structure

Specific Heat Capacity and Thermal Conductivity of Quantum Medium vs DI Water

Non-toxic

Inorganic nanoparticles, non-volatile, non-flammable, and non-explosive

Eco-friendly, in compliance with regulations

Comply with the most stringent environmental standards of the EU and Japan

No rare-earth elements

Metal, transition metals, non-metal oxides, abundant supply

Sustainable Development

Protection of intellectual property rights, environmental protection and energy saving. Supported worldwide.

Quantum Medium

Technical & Economic Value of Quantum Medium

Second-Generation Heat Pipe Technology

Many-Body Thermal Radiation Coupling Heat Conduction and Boiling Heat Transfer

The closest-packing structure enhances the emissivity, dielectric loss and capillary wicking performance of the heating surface, and generates enhanced many-body thermal radiation, thereby enabling the heat pipe transfer heat via many-body thermal radiation coupling conduction and boiling heat transfer with increased critical heat flux, working temperature, and reduced thermal resistance.

Quantum Medium

The heat transfer medium of the second-generation heat pipe, i.e. quantum medium, is composed of five types of nanoparticles with high emissivity and loss tangent. When mixed with deionized water with a weight ratio of 1:100, the dynamic self-assembly of the closest-packing structure is generated to enhance many-body thermal radiation.

Quantum Heat Pipe

The outer surface has high electrical conductivity. The inner surface has high electrical resistance, which is considered as a component of quantum medium. This special design is to meet the different requirements of enhanced many-body thermal radiation coupling heat conduction and boiling, thus enhancing heat transfer performance and reducing cost.

Second-Generation Heat Transfer Technology

Industry Applications

Waste Heat Recovery Application of High Temperature Flue Gas

High temperature waste heat recovery
Increase heat exchange area
Improve energy efficiency
Reduce carbon emission
Reduce operating cost

Waste Heat Recovery Application of High Temperature Flue Gas

High temperature waste heat recovery
Increase heat exchange area
Improve energy efficiency
Reduce carbon emission
Reduce operating cost

Application of Quantum Heat Transfer Technology

Quantum medium is directly mixed with deionized water at a weight ratio of 1:100 for the application of quantum heat transfer technology.

Filling process is in compliance with traditional heat pipes without sonication and surfactant

Dynamic self-assembly of the closest-packing structure enhances the heating surface and generate enhanced many-body thermal radiation.