Air conditioning system and method for controlling air conditioning system
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Solution Overview
Problem
Existing air conditioning systems fail to evenly distribute loads to pumps considering installation conditions of indoor units, such as pipe lengths, leading to uneven load distribution and potential power consumption inefficiencies.
Innovation Solution
An air conditioning system that determines loads for each indoor unit based on their capacities and pipe lengths, using measurement devices to measure flow rates and power consumption, and maps indoor units to pumps to evenly distribute loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If loads are distributed to pumps considering only the capacity of indoor units, then the distribution is simple to implement, but the load distribution becomes uneven due to ignoring installation conditions such as pipe lengths
Solution Approach 1:
The system performs preliminary measurement of installation conditions (pipe lengths, pipe accessories) for each indoor unit before finalizing the load distribution. This preliminary action allows the controller to calculate accurate load values that reflect actual installation conditions, enabling even load distribution across multiple pumps while maintaining systematic implementation.
2Productivity
If multiple pumps are used to forcibly circulate water to multiple indoor units, then the system capacity is improved, but the power consumption increases if loads are not evenly distributed
Solution Approach 1:
The controller calculates load values for each indoor unit based on installation condition parameters (pipe length, pipe accessories) and uses these parameters to optimize pump load distribution. By changing the distribution parameters from simple capacity-based allocation to installation-condition-based allocation, the system achieves even load distribution that minimizes total power consumption while maintaining high system capacity.
3Measurement precision
If installation conditions such as pipe lengths are considered in load distribution, then the load distribution accuracy is improved, but the system complexity increases
Solution Approach 1:
The system incorporates feedback by measuring actual installation conditions (pipe lengths, pipe accessories) for each indoor unit and using this feedback information to adjust and optimize pump load distribution. This feedback mechanism enables accurate load measurement that reflects real installation conditions, achieving high load distribution accuracy without requiring complex hardware modifications.
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
Even load distribution improves system operation efficiency, prevents pump malfunctions, and secures system durability by considering installation conditions.
Implementation Method 1
a heat exchanger configured to perform heat exchange between the refrigerant and the water
Implementation Method 2
heat exchange between the refrigerant and the water
Implementation Method 3
a plurality of pumps installed in the indoor unit pipe to forcibly circulate the water
Implementation Method 4
a measurement device configured to measure a flow rate of water circulating the pump and the indoor unit
Implementation Method 5
a measurement device configured to measure power consumption of the pump when a pump is connected to a plurality of indoor units
Data Source
AI summary
An air conditioning system and a method for controlling an air conditioning system are provided. The air conditioning system determines loads for each indoor unit of a plurality of indoor units considering capacities of the plurality of indoor units, and a length of an indoor unit pipe connected from a pump to each indoor unit, and maps the plurality of indoor units and a plurality of pumps based on the determined loads.