Air conditioner and method for controlling air conditioner
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Solution Overview
Problem
Current air conditioners require manual site visits by service engineers to detect refrigerant leaks, which is inefficient and can lead to delayed detection and environmental contamination.
Innovation Solution
An air conditioner equipped with real-time self-monitoring capabilities, utilizing sensors and a control unit to track operating variables and detect refrigerant leaks through changes in pressure and temperature readings on a Pressure Enthalpy diagram, allowing for immediate notification and display of leak detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual site visits by service engineers are used to detect refrigerant leaks, then detection can be performed, but detection efficiency is low and response time is delayed
Solution Approach 1:
The air conditioner system performs self-diagnosis by automatically monitoring refrigerant parameters (temperature, pressure, flow rate) and detecting leaks without requiring external service engineers. The control unit analyzes operational data in real-time to identify refrigerant leakage conditions, enabling the system to serve itself for detection purposes.
Solution Approach 2:
The system continuously monitors refrigerant parameters and provides feedback to the control unit, which compares actual values against expected ranges. When deviations indicate a leak, the system generates alerts and notifications, creating a closed-loop feedback mechanism that enables timely detection and response without manual intervention.
2Measurement precision
If real-time self-monitoring is implemented, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The control unit performs multiple functions including normal air conditioning control, data acquisition from sensors, analysis of refrigerant parameters, leak detection, and alert generation. By making the control unit universal and multi-functional, the system avoids adding separate dedicated hardware for each function, thereby limiting the increase in device complexity while achieving real-time self-monitoring and high detection accuracy.
Data Source
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AI summary
Provided are an air conditioner, which detects refrigerant leak in real time, and a method for controlling the air conditioner. The method for controlling an air conditioner includes: tracking a cycle change from operating variables of the air conditioner; detecting refrigerant leak from the cycle change; and representing result of the detecting refrigerant leak.