Air-conditioning system
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Solution Overview
Problem
Conventional air-conditioning systems face safety risks when a flammable refrigerant leaks, as the refrigerant accumulates in the air-conditioning room upon system shutdown, making it unsafe to restart the air conditioner.
Innovation Solution
The system initiates by starting the air blower first and then the air conditioner after a predetermined time, ensuring the refrigerant is discharged from the air-conditioning room before restarting the air conditioner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the air conditioner is started immediately after system shutdown, then the startup response is fast and convenient, but the refrigerant concentration in the air-conditioning room may be high causing safety risks
Solution Approach 1:
The air blower is activated before the air conditioner compressor to preliminarily discharge accumulated refrigerant from the air-conditioning room. This preliminary action reduces refrigerant concentration to safe levels before the main cooling operation begins, resolving the contradiction between quick startup and safe operation.
Solution Approach 2:
The system applies preliminary anti-action by using the air blower to counteract the harmful effect of refrigerant accumulation before the air conditioner starts. This preventive measure opposes the potential danger of high refrigerant concentration, ensuring safe operation while maintaining operational convenience.
2Productivity
If the air blower runs continuously to discharge refrigerant, then the refrigerant discharge efficiency is high, but the energy consumption increases
Solution Approach 1:
The air blower operates periodically rather than continuously - it runs for a predetermined period after system shutdown or before startup to discharge refrigerant, then stops. This periodic operation maintains effective refrigerant discharge while significantly reducing energy consumption compared to continuous operation.
Solution Approach 2:
The air blower performs partial action by operating only for the specific duration needed to discharge accumulated refrigerant to safe levels, rather than running continuously. This partial operation achieves sufficient refrigerant removal efficiency while minimizing unnecessary energy consumption.
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 approach safely reduces the refrigerant concentration in the air-conditioning room, allowing the air conditioner to be restarted without risking flammable conditions.
Implementation Method 1
an air blower that blows the air-conditioning room air from the air-conditioning room to the living room
Data Source
AI summary
Air-conditioning system sends air-conditioning room air, which is air in air-conditioning room independent of living room, to living room. An air conditioner is installed in air-conditioning room. Air blower blows the air-conditioning room air from air-conditioning room to living room. Reception unit receives an instruction to start air-conditioning system while air-conditioning system is stopped. When reception unit receives the instruction to start air-conditioning system, controller starts air blower first and then starts the air conditioner.