Air conditioning system, electronic device, and control method of the same
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Solution Overview
Problem
Existing water-cooled air conditioning systems waste energy by maintaining constant cold water and coolant temperatures, regardless of changes in building loads.
Innovation Solution
An electronic device that communicates with air conditioners, chiller units, and cooling towers to adaptively adjust cold water and coolant temperatures based on changes in air-conditioning loads, using a neural network to minimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant temperature control method is used to set cold water temperature and coolant temperature to values calculated for peak load, then cooling capacity is maintained, but energy is wasted
Solution Approach 1:
The patent implements dynamic temperature control by continuously adjusting cold water and coolant temperatures based on real-time load changes. The controller modifies temperature setpoints according to actual cooling demands, transitioning from static peak-load-based temperatures to dynamic load-responsive temperatures, thereby maintaining cooling capacity while reducing energy waste during part-load operations
Solution Approach 2:
The system changes the temperature parameters of cold water and coolant adaptively based on load conditions. By modifying these critical thermal parameters in response to varying cooling demands, the system optimizes energy consumption while ensuring adequate cooling capacity is maintained across different operating conditions
2Use of energy by moving object
If cold water temperature and coolant temperature are adjusted adaptively in consideration of load change, then power consumption is reduced, but system complexity increases
Solution Approach 1:
The patent employs feedback control mechanisms where the controller receives information about actual load conditions and cooling performance, then adjusts cold water and coolant temperatures accordingly. This closed-loop feedback system enables adaptive temperature control that reduces power consumption while managing system complexity through automated regulation rather than manual intervention
Solution Approach 2:
The system achieves self-service by automatically adjusting its own operating parameters (cold water and coolant temperatures) based on sensed load conditions. The controller autonomously optimizes temperature settings without requiring external intervention, thereby reducing power consumption while the automation manages the complexity of adaptive control
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 reduces power consumption while maintaining cooling capacity by dynamically adjusting temperatures, thereby optimizing energy usage in response to changing loads.
Implementation Method 1
an air conditioner (190) including a coil (192) through which cold water flows
Implementation Method 2
The water-cooled air conditioning system cools cold water through heat-exchange between a refrigerant circulating through a refrigerant cycle and cold water circulating through an air conditioner
Implementation Method 3
the cooling tower supplies a coolant to the chiller unit to provide heat required for the chiller unit to perform heat exchange
Data Source
AI summary
Provided are an electronic device and an air conditioning system capable of reducing an amount of power consumption while maintaining cooling capacity of the air conditioning system, by adaptively adjusting cold water temperature and coolant temperature in consideration of a change of a load. The electronic device according to an embodiment includes: a communicator configured to communicate with an air conditioner including a coil through which cold water flows and a valve for adjusting an amount of the cold water, a chiller unit, and a cooling tower; and a controller configured to determine a target open value of the valve based on a change amount of an air-conditioning load of the air conditioner, and control a temperature of the cold water supplied from the chiller unit to the air conditioner such that an open value of the valve adjust towards the target open value.