Ceramic Heat Storage With Grooved Surfaces for Thermal Efficiency
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Solution Overview
Problem
Existing heat storage devices face challenges in improving thermal storage efficiency.
Innovation Solution
A heat storage device comprising a ceramic part with integrated latent heat storage parts and grooves on its surfaces, allowing for increased contact area with a heat medium and optional inclusion of a metal layer to reduce thermal resistance, along with heating elements to convert electrical energy into thermal energy for storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a ceramic part with grooves is used to increase contact area with heat medium, then thermal storage efficiency is improved, but device complexity increases
Solution Approach 1:
The ceramic part is segmented with multiple grooves (first grooves and second grooves) that divide the contact surface into multiple regions, increasing the total contact area with the heat medium. This segmentation allows heat to be transferred more efficiently across the ceramic part while maintaining a relatively simple overall structure.
Solution Approach 2:
The grooves are arranged in different directions (first grooves in a first direction, second grooves in a second direction) to create a three-dimensional heat transfer network. This multi-directional groove arrangement increases the effective contact area and heat transfer pathways without significantly increasing the device's external dimensions or complexity.
2Quantity of substance
If latent heat storage parts are integrated inside the ceramic part, then energy storage capacity is improved, but manufacturing difficulty increases
Solution Approach 1:
The latent heat storage parts are nested inside the ceramic part, with multiple grooves creating nested cavities that accommodate the phase change material. This nesting approach maximizes the energy storage capacity within the available volume while using a single integrated ceramic component that can be manufactured in one piece, reducing assembly complexity.
Solution Approach 2:
The ceramic part serves multiple functions simultaneously: it acts as a structural container, a heat transfer medium (through the grooves), and a protective enclosure for the latent heat storage parts. This multi-functionality reduces the need for separate components, simplifying manufacturing while maintaining high energy storage capacity.
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
Enhances thermal storage efficiency by increasing the contact area with the heat medium and reducing thermal resistance, thereby improving energy storage capacity and stability.
Implementation Method 1
heat storage devices using latent heat storages have been proposed
Implementation Method 2
heating elements to convert electrical energy into thermal energy for storage
Implementation Method 3
increasing the contact area with the heat medium and reducing thermal resistance
Data Source
AI summary
A heat storage device includes a ceramic part, and a latent heat storage part provided inside the ceramic part. The ceramic part includes a first surface, a second surface opposite to the first surface, a third surface connecting the first surface and the second surface, and a first groove provided in the third surface and connected to the first surface and the second surface.