Air conditioning system and condensation prevention method
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Solution Overview
Problem
Air-conditioning systems that prevent condensation in one room do not consider the adjacent rooms, leading to potential condensation issues in unconditioned spaces, which can result in mold growth and poor air quality.
Innovation Solution
An air-conditioning system with a ventilation apparatus in each room and a controller that detects the communication state between rooms, allowing for controlled air supply and exhaust operations to prevent stagnation and condensation in adjacent spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an air-conditioning apparatus performs defrosting operation based on indoor temperature and humidity only, then condensation in the air-conditioned room is prevented, but condensation may occur in adjacent rooms that are not directly air-conditioned
Solution Approach 1:
The system segments the air-conditioning control into two independent parts: the air-conditioning apparatus controls the air-conditioned room, while the ventilation apparatus independently controls the adjacent room. This segmentation allows each device to optimize its control strategy for its specific space, preventing condensation in both rooms simultaneously.
Solution Approach 2:
The ventilation apparatus acts as an intermediary device that bridges the air-conditioned room and the adjacent room. It introduces outside air into the adjacent room and exhausts indoor air, serving as a mediator that prevents condensation in the adjacent room without interfering with the air-conditioning operation in the primary room.
2Object-affected harmful factors
If the door between rooms is kept open to allow air circulation, then condensation in adjacent room is reduced, but the air-conditioning efficiency drops and energy is wasted
Solution Approach 1:
The system segments the ventilation control into two independent apparatuses: the air-conditioning apparatus manages the air-conditioned room, while the ventilation apparatus independently manages the adjacent room. This allows the ventilation apparatus to operate autonomously to prevent condensation without requiring the door to be open, thus maintaining air-conditioning efficiency.
Solution Approach 2:
The ventilation apparatus performs self-service by autonomously controlling air supply and exhaust in the adjacent room based on detected communication states and temperature conditions. This eliminates the need for manual door opening/closing or intervention from the air-conditioning apparatus, preventing condensation while maintaining energy efficiency.
3Object-affected harmful factors
If the ventilation apparatus operates continuously to prevent condensation, then air quality in adjacent room is improved, but energy consumption increases
Solution Approach 1:
The ventilation apparatus dynamically adjusts its operation based on real-time conditions. The controller detects the communication state between rooms and the temperature in the adjacent room, and only operates the ventilation apparatus when condensation risk is detected (when the adjacent room temperature is at or below the dew-point temperature). This dynamic control prevents unnecessary energy consumption while maintaining air quality when needed.
Solution Approach 2:
The system implements feedback control by continuously detecting the communication state between rooms and the temperature in the adjacent room. The controller uses this feedback information to determine whether to operate the ventilation apparatus, creating a closed-loop control system that optimizes energy consumption based on actual condensation risk conditions.
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
The system effectively reduces condensation in both directly and indirectly air-conditioned rooms by managing air flow based on the operation mode and communication state, improving air quality and hygiene.
Implementation Method 1
an air supply operation in which air is sucked from an outdoor space into an indoor space
Implementation Method 2
air is sucked from an outdoor space into an indoor space
Implementation Method 3
an exhaust ventilation operation in which air is discharged from the indoor space to the outdoor space
Implementation Method 4
air is discharged from the indoor space to the outdoor space
Implementation Method 5
a detection module configured to detect a communication state between the first room and the second room
Implementation Method 6
detects an indoor temperature, an outdoor temperature, and an indoor humidity
Implementation Method 7
performs a defrosting operation such that the calculated temperature does not fall to or below a dew-point temperature
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An air-conditioning system includes: an air-conditioning apparatus configured to perform a plurality of operations to condition air in a first room, which correspond to respective operations modes; a first ventilation apparatus installed in the first room and configured to be caused to switch an operation of the first ventilation apparatus between an air supply operation and an exhaust ventilation operation; a second ventilation apparatus installed in a second room that is adjacent to the first room and configured to be caused to switch an operation of the second ventilation apparatus between the air supply operation and the exhaust ventilation operation; a detection module configured to detect a communication state between the first room and the second room; and a controller configured to control the operation of each of the first ventilation apparatus and the second ventilation apparatus based on the operation mode of the air-conditioning apparatus and the communication state detected by the detection module.