Operable Louver Window System with Thermal Break and Security
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Solution Overview
Problem
Existing window solutions fail to provide a product that combines aesthetic appeal with enhanced safety features against theft, vandalism, tornadoes, hurricanes, and energy efficiency, while ensuring emergency exit accessibility and meeting Energy Star requirements.
Innovation Solution
An operable louver window system featuring monobloc glass louvers, chromoly bars, and an integrated operator shifter with a compact assembly, allowing synchronous rotation and enhanced security, thermal efficiency, and natural ventilation, meeting Energy Star and UBC 2012 impact test requirements in both closed and open positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional window solutions are used, then aesthetic appeal and classic elegant look are achieved, but safety features against theft, vandalism, tornadoes, and hurricanes are insufficient
Solution Approach 1:
The window is divided into multiple louvers that can rotate independently or synchronously, allowing each louver to function as a separate security and ventilation element while collectively providing comprehensive protection
Solution Approach 2:
The window system incorporates rotatable louvers that can dynamically adjust between closed (security/thermal) and open (ventilation) positions, transforming a static window into a dynamic security and climate control system
2Loss of energy
If window is closed to provide thermal efficiency and security, then energy efficiency and protection are improved, but natural ventilation is lost
Solution Approach 1:
The louvers can rotate to different angles, allowing the window to dynamically transition between fully closed (maximizing thermal efficiency) and partially or fully open (enabling natural ventilation) states
Solution Approach 2:
By changing the angular position parameter of the louvers, the system optimizes thermal performance when closed and enables ventilation when opened, allowing dynamic adaptation to different environmental conditions
3Ease of operation
If window is opened to allow natural ventilation, then air flow and cooling are improved, but protection against forceful entry is reduced
Solution Approach 1:
Multiple individual louvers can be selectively positioned, allowing ventilation through controlled gaps while maintaining security barriers that prevent forceful entry even when partially open
Solution Approach 2:
The system provides dynamic security by allowing controlled opening for ventilation while maintaining the ability to quickly close and lock all louvers for security, enabling adaptive response to different security and ventilation needs
4Strength
If railings are installed to provide security protection, then safety against theft and vandalism is improved, but emergency exit accessibility is obstructed
Solution Approach 1:
The louver system can rapidly transition from a closed security position to an fully open emergency egress position, providing dynamic security that does not permanently obstruct emergency exits unlike fixed railings
Data Source
AI summary
The system is compose of a series of operable louvers mounted on a four sided frame and connected on each side to the operating mechanism that allows for easy opening and closing of the louvers. Every part of the system that is exposing to the exterior of the building is separated from the interior part of the system by a low heat conductivity material as a thermal barrier. Each operable louver is composing of a four sided main frame, two panes of glass (inner and outer) and a coupling mechanism on each side that connects to the operating mechanism. The main frame acts as the thermal break as well as a system that absorbs the energy created when an outside object impacts the window from the outside. The system incorporates sealing devices between all moving parts to eliminate water and air infiltration. The operating system allows for easy opening and closing of the window by rotating each louver with the crank mechanism assisted by springs.