Aircraft Cabin Temperature Control for Disinfection
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Solution Overview
Problem
Current aircraft cabin disinfection systems using pre-conditioned air units often fail to ensure uniform temperature distribution across the cabin, leading to areas not reaching the required temperature for effective virus inactivation, potentially leaving active viruses present after disinfection.
Innovation Solution
A system comprising multiple sensors in different cabin areas, a computer server, and an air conditioning unit on the ground, with a piloting module and user interface, allows real-time temperature regulation and verification that all areas reach a predetermined temperature for a specified duration, ensuring comprehensive disinfection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a pre-conditioned air unit is used to regulate cabin temperature, then the cabin can be disinfected by reaching predetermined temperature, but the temperature distribution becomes non-uniform with certain areas not reaching the required temperature
Solution Approach 1:
The cabin is divided into multiple zones with individual temperature sensors placed in different areas (front, middle, rear, overhead compartments). Each zone's temperature is monitored independently, allowing the system to identify and address specific areas that fail to reach the required temperature for effective disinfection.
Solution Approach 2:
The system dynamically adjusts the air conditioning cycle based on real-time temperature data from multiple sensors. The control module modifies the predetermined cycle phases (heating, maintaining, cooling) according to actual temperature measurements, ensuring all zones reach and maintain the required temperature for the necessary duration.
2Ease of operation
If manual control of air conditioning generator is used, then operation is simple, but real-time temperature verification across all cabin areas is not possible
Solution Approach 1:
Multiple temperature sensors provide real-time feedback to a control module, which processes the data and verifies whether all cabin areas have reached and maintained the required temperature for the specified duration. This automated verification system ensures accurate temperature monitoring while the user interface maintains simple manual control operations.
Solution Approach 2:
The system automatically monitors and verifies temperature conditions across all cabin zones without requiring manual intervention. The control module self-adjusts the air conditioning operation based on sensor data, and the system automatically confirms when disinfection criteria are met, reducing the need for complex user operations.
3Device complexity
If a predetermined temperature cycle is applied uniformly, then the air conditioning system is simple to control, but certain cabin areas may not reach the required temperature for the full duration
Solution Approach 1:
While maintaining a structured predetermined cycle framework (heating phase, maintaining phase, cooling phase), the system dynamically adjusts the duration and intensity of each phase based on real-time temperature feedback from multiple sensors. This ensures reliable disinfection effectiveness while keeping the control logic organized and manageable.
Solution Approach 2:
The system applies differentiated temperature control to different cabin zones based on their specific thermal characteristics. Each zone's temperature requirements and timing are individually verified, allowing the predetermined cycle to be adapted locally to ensure all areas achieve the required temperature for the necessary duration.
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 ensures all areas of the aircraft cabin are exposed to the required temperature for the necessary duration, effectively inactivating viruses and optimizing disinfection.
Implementation Method 1
an air conditioning generator for generating air conditioning in the cabin
Implementation Method 2
regulating the temperature of the air in the cabin at a predetermined temperature for a determined duration
Implementation Method 3
a plurality of sensors configured to be placed in different areas of the cabin, each sensor being configured to acquire, in real time, data representative of the temperature of the area of the cabin
Implementation Method 4
a computer server configured to receive, in real time, the data from the plurality of sensors and comprising a database comprising, for the aircraft, a predetermined cycle of regulating the temperature of the cabin air at a predetermined temperature for a determined duration
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The system (20) comprises a computer server (26) receiving data (24) representative of the cabin temperature and including a database (28) containing, for the aircraft, a predetermined cycle (40) for regulating the cabin air temperature; a ground-based air conditioning unit (32) comprising an air conditioning generator (34) and a control module (36); and a user interface (30) connected to the computer server and transmitting a control signal (38) to the control module. Upon receiving the control signal, the control module operates the air conditioning generator according to the predetermined cycle, which is modulated based on said data. This system allows for real-time control of the cabin temperature, so as to ensure proper disinfection.