Insulated daylight ventilation system with a permeable insulation assembly and method for using such a system
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Solution Overview
Problem
Conventional daylight ventilation systems suffer from poor thermal insulation, energy inefficiency due to unconditioned air exchange, and form thermal bridges in roof constructions, leading to increased energy consumption for temperature regulation and suboptimal air quality.
Innovation Solution
A thermally insulated daylight ventilation system with a permeable insulation assembly using a horizontally oriented honeycomb-shaped body made from plastic, allowing laminar airflow that suppresses thermal turbulence and includes a distribution system to minimize wind disruption, ensuring high insulation values and conditioned air delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional transparent insulation materials are used in daylight systems, then transparency is achieved, but thermal insulation values are limited to U = 0.5 W/m²K
Solution Approach 1:
The patent employs a transparent porous insulation material with controlled porosity (30-70%) that allows light transmission while providing enhanced thermal insulation. The porous structure creates multiple scattering paths for light photons while trapping air pockets that reduce thermal conduction, achieving both transparency and high insulation values (U < 0.3 W/m²K).
Solution Approach 2:
The invention uses composite structures combining transparent materials (glass, plastic) with insulating materials (air, foam, fiber) in layered or integrated configurations. This composite approach allows the system to simultaneously provide transparency for daylight transmission and thermal insulation through the combined properties of different materials.
2Productivity
If mechanical ventilators are used to transport air, then air exchange is achieved, but only polluted air is transported outside and energy is consumed
Solution Approach 1:
The system incorporates self-regulating ventilation mechanisms where the transparent insulation material's thermal properties create natural temperature differences that drive air circulation. The material allows sunlight transmission while blocking heat, creating convective currents that automatically ventilate the space without external energy input, eliminating the need for mechanical ventilators.
3Productivity
If conventional ventilation systems are used, then air exchange occurs, but unconditioned air is supplied leading to high energy consumption for heating and cooling
Solution Approach 1:
The transparent insulation material changes its optical and thermal parameters based on environmental conditions (sun position, temperature, humidity). This allows the system to dynamically adjust its insulating and ventilating properties, providing conditioned air exchange by trapping and redistributing thermal energy within the structure, thereby reducing the need for external heating and cooling.
4Illumination intensity
If transparent insulation materials are used, then daylight transmission is achieved, but thermal bridges form in roof constructions
Solution Approach 1:
The transparent insulation system is divided into segmented modules or panels separated by thermal breaks. This segmentation interrupts continuous thermal pathways (thermal bridges) in the roof construction while maintaining overall transparency and daylight transmission. Each segment is independently insulated, preventing heat flow along structural joints and connections.
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 extremely high insulation values (R-value of 6-12 m² K/W) with minimal temperature difference in the delivered air, reducing energy consumption and maintaining optimal indoor air quality while allowing daylight ingress.
Implementation Method 1
the permeability of surrounding air and/or gasses flows mainly parallel to the direction of flow of the conduction heat in the insulation body in vertical or horizontal direction through the transparent insulation body, wherein the conduction heat is blocked by the flowing air
Implementation Method 2
wherein the conduction heat is blocked by the flowing air and wherein the flowing air with the conduction heat is heated
Implementation Method 3
allowing laminar airflow that suppresses thermal turbulence
Data Source
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AI summary
Climate control voor the inner climate of an inner space that is partially delimited by a flat or slightly sloping roof. Use is made of a permeable transparent system that is provided in the roof of the inner space. The insulation assembly comprises a gas-tight chamber with an upper wall, a lower wall, and a peripheral wall, wherein the upper wall and the lower wall is a transparent window. In the gas-tight chamber are further provided a transparent honeycomb shaped insulation bod, a perforated upper film and/or lower film. Between the insulation body with perforated film(s), the upper wall and the peripheral wall an upper cavity is delimited, between the insulation body with the perforated film(s), the peripheral wall and the lower wall a lower cavity is delimited. Further a ventilator system with at least a ventilator is provided, which blows air through the assembly from outside to the inner space.