Dynamic Insulation Wall Assembly with Controlled Airflow Cavities
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Solution Overview
Problem
Conventional building envelope systems face challenges in controlling ventilation airflow rates and filtering external air, leading to inefficient energy use, health risks from pollutants, and temperature fluctuations, especially in buildings with natural ventilation and high heat resistance.
Innovation Solution
A dynamic insulation wall module with air cavities and a ventilation unit, comprising an outer air-permeable layer, an intermediate air-permeable layer, and an inner insulating and heat-reflecting layer, allowing controlled airflow and filtration, reducing thermal transmittance and enhancing heat recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If natural ventilation is used with manual window opening, then device complexity is reduced, but control of air flow rates and inlet temperature is lost
Solution Approach 1:
The patent applies the self-service principle by designing a shutter system that automatically responds to temperature conditions. The shutter mechanism operates based on predetermined temperature thresholds, enabling the ventilation system to self-regulate air flow rates and inlet temperature without requiring complex control systems or continuous user intervention, thus maintaining simplicity while improving controllability
2Loss of energy
If windows and doors are kept closed to improve air tightness, then parasitic infiltration is reduced, but healthiness problems occur due to insufficient air exchange
Solution Approach 1:
The patent applies the intermediary principle by introducing the shutter system as a controlled mediation mechanism between the indoor and outdoor environments. The shutter provides a regulated passage for air exchange, allowing fresh air to enter and pollutants to be expelled while maintaining better control over the air exchange process compared to fully open windows, thus balancing air tightness benefits with healthiness requirements
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 module provides efficient energy management, improved air quality, and better control over ventilation, reducing energy consumption and health risks while adapting to climatic changes.
Implementation Method 1
a first air cavity, in which airflow is circulated, which is arranged beyond the at least one intermediate layer of air-permeable material
Implementation Method 2
a layer of insulating and heat-reflecting material, which includes at least one air-tight and thermal insulation membrane
Implementation Method 3
a layer of insulating and heat-reflecting material, which includes at least one air-tight and thermal insulation membrane
Data Source
Figure 1
Figure 2~2A
Figure 3~4A
AI summary
A dynamic insulation wall module (1-7) is described for making air-permeable walls (110) interposed between a confined indoor environment (I) and the outdoor environment (E) of a building. The module (1-7) comprises at least one air cavity (40) in which an airflow is circulated, produced and controlled by a ventilation unit (100). Following a direction from the outdoor environment (E) to the indoor environment (I), the module (1-7) comprises at least one outer layer (10) of air-permeable material, at least one intermediate layer (30) of air-permeable material, a first air cavity (40) arranged beyond the intermediate layer (30) of air-permeable material and at least one innermost layer (60) of insulating and heat-reflecting material. The latter is arranged beyond the first air cavity (40) and before a layer (80) of rigid material including interior cladding panels.