Movable Facade Panel Design for Adaptive Building Thermal Control

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Solution Overview

Problem

Existing building facade systems are inflexible in controlling heat flow and solar radiation, limiting the ability to efficiently manage thermal insulation and energy usage, especially in varying weather conditions.

Innovation Solution

A movable facade system with pivotable panels that can be opened or closed to control convection and radiation exchange, featuring a core wall with optimized solar energy absorption and an air gap for enhanced insulation, using materials with high storage capacity and adjustable design to maximize energy usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If building insulation is used to prevent heat loss, then thermal insulation performance is improved, but heat exchange with the environment is prevented including beneficial solar radiation in cold seasons

Engineering Contradiction:
Improveheat lossVSAvoidheat exchange control
Core Design Contradiction:
Loss of energyVSAdaptability or versatility

Solution Approach 1:

The patent applies a movable facade system with panels that can be dynamically adjusted between open and closed positions. This dynamic structure allows the building envelope to adapt its insulation properties in real-time, opening to permit beneficial solar radiation and heat exchange during cold seasons, and closing to prevent heat loss during warm seasons, thus resolving the contradiction between thermal insulation and environmental adaptability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The facade system changes its thermal parameters by transitioning between open and closed states. When closed, the air gap and panel configuration create high thermal resistance for insulation; when open, the parameters change to allow maximum heat exchange and solar gain, enabling the system to optimize thermal performance according to seasonal and diurnal conditions

Inventive Principle:
Principle #35Parameter changes

2Loss of energy

If fixed facade systems are used for thermal insulation, then insulation performance is improved, but flexibility in controlling solar radiation and heat flow is reduced

Engineering Contradiction:
Improveenergy lossVSAvoidcontrol flexibility
Core Design Contradiction:
Loss of energyVSEase of operation

Solution Approach 1:

The patent transforms a static facade into a dynamic system where panels can be actively positioned to control solar radiation and heat flow. The movable panels enable operational flexibility to capture solar energy when needed and provide insulation when required, eliminating the compromise between fixed insulation performance and operational adaptability

Inventive Principle:
Principle #15Dynamics

3Loss of energy

If panels are kept closed for insulation, then thermal insulation is improved, but solar energy absorption and heating capability is reduced

Engineering Contradiction:
Improvethermal insulationVSAvoidsolar energy utilization
Core Design Contradiction:
Loss of energyVSUse of energy by moving object

Solution Approach 1:

The facade system implements periodic opening and closing cycles aligned with solar position and thermal needs. Panels open during periods when solar radiation provides beneficial heating, and close during periods when insulation is prioritized, creating a rhythmic pattern of exposure and protection that maximizes both solar energy capture and thermal insulation performance throughout the day and season

Inventive Principle:
Principle #19Periodic action

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

This system allows for targeted control of heat flow and energy usage, maximizing solar energy absorption and storage, reducing energy losses, and enabling efficient heating and cooling by reacting quickly to environmental changes.

Implementation Method 1

a space formed between the building wall and facade elements is opened by means of a facade according to one of claims 1-13 if convection and/or radiation exchange with the environment is desired and closed when convection and/or radiation exchange with the environment is not desired

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

convection and/or radiation exchange with the environment

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

convection and/or radiation exchange with the environment

Methodology Applied
Scientific EffectRadiation: Radiation

Implementation Method 4

The temperature control effect of this controlled and selectively permeable construction is significantly increased in combination with a storage medium

Methodology Applied
Scientific EffectSolar radiation absorption: Absorption (EM radiation)

Implementation Method 5

a space formed between the building wall and facade elements is opened by means of a facade according to one of claims 1-13 if convection and/or radiation exchange with the environment is desired

Methodology Applied
Scientific EffectThermal energy storage: Thermal Energy Storage

Data Source

PatentEP2547966B1Façade and method for controlling the thermal properties of the façade
Publication Date: 2017.01.11 SCHWARZMAYR RUDOLF
  • EP2547966B1 patent drawing
  • EP2547966B1 patent drawing
  • EP2547966B1 patent drawing

AI summary

The invention relates to a façade on a building shell, in particular a building wall (1), comprising movable panels (2), which preferably can be pivoted about a vertical or horizontal axis (4). A space (16) that can be opened and closed is formed between the building wall (1) and the panels (2).