Air conditioning system
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Solution Overview
Problem
Conventional air conditioning systems with two independent refrigeration cycles increase power consumption and complicate system configuration and control, leading to reduced comfort and increased cooling loads due to temperature rise in blown-out air during humidification.
Innovation Solution
An air conditioning system with a single refrigerant circuit, including a compressor, condenser, decompressors, and heat exchangers, where a blower fan takes in outside air, which is heated by the condenser, humidified, and then cooled by the heat exchanger before being supplied into the room, allowing for temperature regulation without complex control or increased power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If two independent refrigeration cycles are provided to control the temperature of blown out air, then the temperature control capability is improved, but power consumption increases and system complexity increases
Solution Approach 1:
The patent merges two independent refrigeration cycles into a single refrigeration cycle by placing heat exchangers from both cycles into a common air duct. The single cycle includes a compressor, condenser, first decompressor, first heat exchanger, second decompressor, and evaporator that work together to condition the air, eliminating the need for two separate systems while maintaining temperature control capability.
Solution Approach 2:
The single refrigeration cycle is segmented into multiple functional components (compressor, condenser, first decompressor, first heat exchanger, second decompressor, evaporator) that operate in sequence. Each component performs a specific function in the refrigeration process, allowing the system to achieve complex temperature control through a simplified single-cycle architecture.
2Temperature
If two independent refrigeration cycles are provided to control the temperature of blown out air, then the temperature control capability is improved, but the system configuration and control become complicated
Solution Approach 1:
The patent merges two independent refrigeration cycles into a single refrigeration cycle by placing heat exchangers from both cycles into a common air duct. The single cycle includes a compressor, condenser, first decompressor, first heat exchanger, second decompressor, and evaporator that work together to condition the air, eliminating the need for two separate systems while maintaining temperature control capability.
3Quantity of substance
If humidification is performed without subsequent cooling, then the humidification function is achieved, but the temperature of blown out air increases reducing comfort and increasing cooling load
Solution Approach 1:
The patent implements a continuous air conditioning process where humidification and cooling operations are performed in sequence within the same air flow path. Air is humidified by the humidifier and then immediately cooled by the heat exchangers, ensuring that the useful actions of humidification and cooling are continuous and integrated, preventing temperature buildup while maintaining humidity levels.
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 configuration reduces the increase in temperature of blown-out air during humidification, maintaining room comfort and reducing cooling loads, while simplifying the system configuration and control, thus lowering energy consumption and equipment costs.
Implementation Method 1
The refrigerant discharged from the compressor is condensed into a supercooled liquid state in the condenser
Implementation Method 2
caused to absorb heat in the heat exchanger
Data Source
AI summary
An air conditioning system includes a compressor to compress refrigerant; a first heat exchanger to condense the compressed refrigerant into a supercooled liquid state; a first decompressor to decompress the condensed refrigerant; a second heat exchanger to cause the decompressed refrigerant to absorb heat; a second decompressor to decompress the heated refrigerant; a third heat exchanger to evaporate the decompressed refrigerant; and a blower fan to take in air from outside a room and blow the air to the first heat exchanger. The second heat exchanger is disposed downstream of the first heat exchanger in a blowing direction of the blower fan. A humidifier is disposed between the first heat exchanger and the second heat exchanger in the blowing direction. The air blown from the blower fan is heated by the first heat exchanger, humidified by the humidifier, cooled by the second heat exchanger, and supplied into the room.