Distributed hazard detection system for a transport refrigeration system
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current transport refrigeration systems lack effective hazard detection mechanisms, particularly for refrigerant leaks and flammable gases within refrigerated containers, which can pose safety risks during the transportation of perishable goods.
Innovation Solution
A hazard detection system integrated into the transport refrigeration system, comprising a distributed network of sensors and controllers that communicate via a wireless network to alert operators and initiate safety procedures, including fan activation and warning systems, in case of refrigerant leaks or other hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a distributed network of sensors is implemented throughout the refrigerated container, then hazard detection capability is improved, but device complexity increases
Solution Approach 1:
The hazard detection system is segmented into multiple independent sensor nodes distributed throughout the refrigerated container. Each sensor independently monitors its local zone for refrigerant leaks and communicates findings to a central controller, enabling comprehensive coverage without requiring a monolithic complex system
Solution Approach 2:
The sensor nodes are designed to perform multiple functions: detecting refrigerant presence, monitoring temperature conditions, and communicating status information. This multi-functionality reduces the need for separate specialized devices, thereby managing system complexity while maintaining reliable hazard detection
2Measurement precision
If multiple sensors are deployed in compartments, then measurement coverage is improved, but cost increases
Solution Approach 1:
Sensors are strategically positioned in specific compartments and zones where refrigerant leaks are most likely to occur or where hazard risk is highest. This targeted placement ensures adequate detection coverage in critical areas without unnecessarily deploying sensors throughout the entire container, thereby managing costs while maintaining precision where it matters most
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
Enhances safety by promptly detecting and responding to refrigerant leaks and other hazards, ensuring the integrity of the refrigerated environment and the safety of the transportation process.
Implementation Method 1
a sensor located within the container configured to detect the presence of refrigerant
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A transport refrigeration system 10, comprising a primary controller 30; a refrigerated container 6 with a plurality of compartments; a hazard detection system 150, comprising: an auxiliary controller 160; and a plurality of sensors 170 respectively distributed in a plurality of compartments 200 of the refrigerated container o 6 f the transport refrigeration system 10, each of the plurality of sensors 170 operationally connected to and controlled by the auxiliary controller 160.