Leakage detection and mitigation system
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Solution Overview
Problem
There is a need for improved refrigerant leak detection and mitigation systems, particularly for HVAC systems using alternate refrigerants like A2L, which are flammable and susceptible to combustion under certain conditions.
Innovation Solution
A refrigerant leak detection system with sensors and processing circuitry to identify leak location, severity, and generate notifications to user devices and third-party security servers, implementing safety protocols based on leak severity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors and processing circuitry are added to detect refrigerant leaks, then safety and reliability are improved, but device complexity increases
Solution Approach 1:
The system divides the monitoring function into separate modular components: sensors for detection, processing circuitry for analysis, and communication modules for notification. This segmentation allows each component to be optimized independently while maintaining overall system reliability without excessive complexity.
Solution Approach 2:
The system performs preliminary detection and assessment of refrigerant leaks before they can cause combustion or significant harm. By continuously monitoring and identifying leaks early, the system enables preventive action rather than reactive response, improving safety while using straightforward detection thresholds.
2Measurement precision
If leak detection sensitivity is increased to detect smaller leaks, then measurement precision is improved, but false alarms increase reducing reliability
Solution Approach 1:
The processing circuitry continuously monitors sensor feedback and compares readings against dynamic thresholds. When a potential leak is detected, the system can confirm the reading through additional sensing or cross-validation before triggering an alarm, reducing false positives while maintaining sensitivity to actual leaks.
Solution Approach 2:
The system adjusts detection parameters such as concentration thresholds and response time based on operating conditions, refrigerant type, and environmental factors. This allows high sensitivity detection tailored to specific scenarios without generating false alarms from normal operational variations.
Data Source
AI summary
A refrigerant leak detection system includes a sensor configured to detect a leaked portion of refrigerant external to a closed-loop refrigeration circuit of a heating, ventilation, and/or air conditioning (HVAC) system, memory circuitry having instructions stored thereon, and processing circuitry configured to execute the instructions to perform various functions. The functions include receiving, from the sensor, sensor feedback indicative of the leaked portion of the refrigerant. The functions also include transmitting, based on the sensor feedback, a notification indicative of the leaked portion of the refrigerant to a third party security server.