Technical Progress in 60 years

Why heat transfer development is more difficult than moon landing?

Quantum Heat Transfer Technology

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

Boiling Heat Transfer Enhancement

The above results are the performance of heat transfer medium.

Working temperature is the heater temperature at input power of 700-2800 W with water coolant (15oC, 500 ml/min)

Quantum Heat Transfer Mechanism

The carrier of quantum heat transfer technology is quantum medium (composite nanoparticles). The closest-packing structure (d=0~20 nm) is established by physical properties of nanoparticles and liquid to generate quantum heat transfer, where heat is transferred via near-field thermal radiation, phonon heat transfer driven by quantum fluctuations, phonon tunnelling, and phonon conduction. The quantum medium transfers heat via quantum heat transfer and couples with heat conduction and boiling, thus increasing boiling heat transfer coefficient. This delays the formation of Leidenfrost effect and increase Leidenfrost transition point, thereby increasing working temperature and critical heat flux, decreasing thermal resistance.

Inventions

Global Patents

Increase Heat Transfer Coefficient toEnhance Boiling Heat Transfer

Boiling Heat Transfer Characteristics of Water

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, quantum heat transfer is the main method to transfer heat.

Closest-packing Structure

Establish the dynamic closest-packing structures between nanoparticles
Multiple nanoparticles and liquid
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
Generate non-phase change quantum heat transfer
Increase boiling heat transfer coefficient

Quantum Heat Transfer Coupling Heat Conduction and Boiling Heat Transfer

Second-Generation Heat Transfer Technology

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

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

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 Transfer Technology

Second-Generation Heat Pipe Technology

Quantum Heat Transfer Coupling Heat Conduction and Boiling Heat Transfer

Introducing quantum heat transfer method, diffusional (continuous) heat transfer coupling with quantum (discontinuous) heat transfer to increase heat transfer coefficient, thus delaying the formation of Leidenfrost effect, thereby increasing working temperature and critical heat flux of heat pipe, decreasing thermal resistance, enhancing boiling heat transfer.

Quantum Medium

Heat transfer medium of the second-generation heat pipe: quantum medium. Five types of nanoparticles with high emissivity and loss tangent are mixed with deionized water to self-assemble closest-packing structure and enhance quantum heat transfer.

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 quantum heat transfer coupling heat conduction and boiling, thus enhancing heat transfer performance and reducing cost.

Working temperature of the second-generation heat pipe is 580oC, heat flux is 3.2 MW/m.2.

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 without sonication and surfactant;
Filling process is in compliance with traditional heat pipes;
The dynamic self-assembly of the closest-packing structure realizes the quantum heat transfer method.