Method for operating a ventilation system of a room
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Solution Overview
Problem
Existing room ventilation systems with extractor hoods in simple buildings face challenges in preventing negative pressure during exhaust air mode, leading to complex and costly installations and operations, especially when integrated with living rooms.
Innovation Solution
The extractor hood automatically switches to exhaust air mode when the ventilation device is open and to recirculation mode when closed, ensuring no negative pressure is formed, with optional manual override and automatic window operation to manage air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the extractor hood operates in exhaust air mode to remove cooking vapors, then the removal of harmful factors is improved, but negative pressure is formed in the living room
Solution Approach 1:
The system dynamically switches between exhaust air mode and recirculation mode based on the operational state of the extractor hood and the position of the ventilation device. The control device automatically adjusts the operating mode to maintain pressure balance while ensuring effective vapor removal when needed.
Solution Approach 2:
The system uses feedback from the control device to monitor the operational status of the extractor hood and the ventilation device position, automatically switching between modes to prevent negative pressure formation while maintaining effective vapor removal when cooking is in progress.
2Stress or pressure
If a ventilation device is installed to supply outside air and compensate for negative pressure, then the pressure balance is improved, but the device complexity and installation cost increase
Solution Approach 1:
The system is designed to automatically manage pressure balance through intelligent control logic that monitors the state of existing components (extractor hood and ventilation device) and switches operating modes accordingly, eliminating the need for additional active pressure control devices or complex mechanical ventilation systems.
Solution Approach 2:
The control device manages multiple functions using the existing extractor hood and ventilation device infrastructure, making the system adaptable to different operating conditions (cooking mode, idle mode, window open/closed states) without requiring dedicated components for each function.
3Device complexity
If the ventilation device is manually operated to maintain pressure balance, then the system simplicity is preserved, but the ease of operation and automation are reduced
Solution Approach 1:
The control device continuously monitors the operational status of the extractor hood and the position of the ventilation device, automatically switching between exhaust air and recirculation modes based on real-time feedback, thereby providing automated pressure management without requiring manual intervention.
Solution Approach 2:
The system performs automatic pressure balance management through intelligent control logic that responds to the operational states of connected devices, eliminating the need for manual operation while maintaining system simplicity and avoiding complex additional hardware.
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 solution ensures optimal operation with minimal equipment expenditure, preventing negative pressure and optimizing energy consumption by automatically adjusting the ventilation mode based on the ventilation device's status, thereby maintaining a comfortable and energy-efficient environment.
Implementation Method 1
an extractor hood (3) with a fan (18)
Implementation Method 2
a filter package (16), through which the air provided with fat particles and other particles and odors due to cooking is cleaned
Implementation Method 3
an exhaust pipe (15)
Data Source
Figure 1~2
AI summary
The invention relates to a method for operating a room ventilation system, in particular for living spaces, with an extractor hood (3) which operates in the exhaust air or recirculated air mode and which interacts via a control device (6) with a ventilation device (9) for supplying outside air into the living space . The extractor hood (3) is automatically switched to exhaust air operation on the one hand when the ventilation device (9) is opened and to air recirculation operation on the other hand when it is closed. This ensures that when the extractor hood is switched on, in particular during cooking, it is ensured that no negative pressure or always optimum operation with regard to low energy consumption is achieved.