Boron Metal Latent Heat Storage Unit
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Solution Overview
Problem
Existing latent heat storage units have limited capacity to store larger amounts of latent heat, which is increasingly demanded by various applications.
Innovation Solution
A latent heat storage unit is designed with a ceramic part made of a polycrystalline body and a metal part containing boron, where the metal part has a melting point of 1100°C or higher, allowing for a higher phase change temperature and increased latent heat storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional phase change materials with lower melting points are used, then the latent heat storage unit is easier to manufacture and operate, but the latent heat storage capacity is limited
Solution Approach 1:
The patent changes the temperature parameter by selecting a phase change material (boron-containing metal alloy) with a melting point of 1100°C or higher, fundamentally altering the operating temperature range to enable higher latent heat storage capacity
Solution Approach 2:
The patent uses a composite material system consisting of a boron-containing metal alloy (such as Al-B-Si alloy) combined with a protective layer, creating a material that maintains structural integrity while achieving high-temperature phase change properties
2Quantity of substance
If high melting point materials are used to increase latent heat storage capacity, then thermal energy density is enhanced, but the protective layer requirements become more stringent to prevent chemical reactions
Solution Approach 1:
The patent introduces a protective layer as an intermediary substance between the boron-containing metal alloy and the external environment, preventing direct chemical reactions while allowing heat transfer, thus enabling high-temperature operation without harmful side effects
Solution Approach 2:
The patent creates a composite structure with an inner core of boron-containing metal alloy and an outer protective layer, combining materials with complementary properties to achieve both high latent heat storage and chemical stability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed latent heat storage unit effectively stores larger amounts of latent heat due to the high melting point of the boron-containing metal part, enhancing thermal energy density and enabling efficient energy storage and utilization.
Implementation Method 1
a latent heat storage unit includes a ceramic part made of a polycrystalline body and having a closed space formed therein and a metal part provided in the closed space and containing boron, wherein a melting point of the metal part is 1100° C. or higher
Implementation Method 2
the metal part has a melting point of 1100°C or higher, allowing for a higher phase change temperature and increased latent heat storage capacity
Data Source
AI summary
A latent heat storage unit includes a ceramic part made of a polycrystalline body and having a closed space formed therein and a metal part provided in the closed space and containing boron, wherein a melting point of the metal part is 1100° C. or higher.