Multi-Layer Thermal Insulation System for Long-Duration Heat Storage
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Solution Overview
Problem
Existing thermal energy storage systems face challenges in efficiently storing thermal energy for long durations with minimal heat loss, particularly for indoor and stationary cooking applications, and do not effectively accommodate different qualities of heat based on intended applications.
Innovation Solution
A system utilizing a combination of thermal insulation layers (Grade 1, Grade 2, Grade 3) with a heat-resistant and thermal insulation paint, along with a reflector or foil between insulation layers to minimize radiative heat loss, allowing for customizable insulation arrangements based on heat retention requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If multiple layers of insulation materials are used, then heat retention duration is improved, but device complexity increases
Solution Approach 1:
The insulation system is divided into multiple layers with different material grades (Grade 1, Grade 2, Grade 3) where each layer serves a specific thermal retention function. This segmentation allows optimization of heat retention duration by selecting appropriate combinations of insulation materials for different time duration requirements.
Solution Approach 2:
Different grades of insulation materials are applied at different locations around the thermal storage unit based on the intended application's heat retention requirements. Grade 1 materials are used where maximum retention is needed, while Grade 3 materials suffice for shorter duration applications, optimizing both performance and complexity.
2Loss of energy
If reflector and insulation paint are added, then radiative heat loss is reduced, but manufacturing complexity increases
Solution Approach 1:
The system converts radiative heat loss, which is normally a harmful energy loss, into a beneficial effect by using reflective materials (foil or paper) that bounce thermal radiation back into the storage chamber. The heat-resistant insulation paint further enhances this by reflecting radiant heat while protecting the outer insulation layers.
Solution Approach 2:
The solution combines multiple materials with complementary properties: reflector materials (foil/paper) for radiative heat reflection, heat-resistant insulation paint for additional radiation barrier and protection, and multiple grades of thermal insulation materials. This composite approach addresses radiative heat loss effectively while maintaining manufacturing feasibility.
3Productivity
If customized insulation arrangements are implemented, then heat retention efficiency is improved, but adaptability decreases
Solution Approach 1:
The system achieves customized insulation arrangements by changing the parameters of the insulation configuration - specifically the number of layers, the grades of materials used, and the thickness of each layer - to match different heat retention efficiency requirements for various applications.
Solution Approach 2:
The patent provides a universal insulation system that can be adapted to multiple applications (indoor cooking, stationary cooking, water heating, power generation) by selecting appropriate combinations of the standardized insulation materials and configurations, making the system versatile despite its customized nature.
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 system achieves efficient and reliable heat storage with minimal conductive and radiative heat losses, enabling long-duration heat retention suitable for various applications, including both stationary and portable systems, with average standby heat loss less than 7% per hour.
Implementation Method 1
a plurality of thermal insulation layers (Grade 1, Grade 2, Grade 3) adapted to retain heat
Implementation Method 2
a glass or aluminum reflector or a foil or a paper (4) inserted between each layer of insulation adapted to reduce the further radiation losses
Implementation Method 3
a heat resistant and thermal insulation paint (5) coated on outer side of a heat storage material adapted to minimize the radiative heat loss
Data Source
AI summary
The present invention relates to a highly efficient system and method for heat storage for modular indoor cooking and other engineering applications comprising of set of carefully selected insulation materials and their arrangement so as to maximize the storage of heat for the desired time duration.