Abstract ▼ AI-Helper

When refrigerant leakage from inverter air conditioner occurs, it degrades the performance of the system and causes compressor damage. Even though many attempts were made in the past, sealing problem has not fully solved. Refrigerant leakage still occurs frequently and cause large amount of cost.

When refrigerant leakage from inverter air conditioner occurs, it degrades the performance of the system and causes compressor damage. Even though many attempts were made in the past, sealing problem has not fully solved. Refrigerant leakage still occurs frequently and cause large amount of cost.
In this study, inverter air conditioner is applied to detect
refrigerant leakage as the logic in the system. This logic is designed to use the factors representing refrigerant leakage in the system. These factors are indoor/outdoor temperature, heat exchanger temperature, EEV pulse, compressor discharge temperature, compressor Hz, power consumption. This logic is verified in cooling and heating guarantee temperature. Base on test results, the logic can be applied the lack of -50% refrigerant amounts in the cooling mode and the lack of -60% in the heating mode.
As a result, the new logic is enhanced accuracy by using the various factors. And the existing logic has been applied only in cooling mode, but new logic is extended in heating mode.

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