Air Conditioning Control Using Net Radiometer for Energy Optimization
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Solution Overview
Problem
Existing air-conditioning systems, particularly in older buildings, face challenges in efficiently managing energy consumption, leading to high costs and environmental impact, as they lack effective control techniques that consider both energy saving and lighting systems.
Innovation Solution
A control system that integrates sensors, such as net radiometers, temperature probes, and solar probes, with a control-command module to dynamically adjust air-conditioning and lighting operations based on real-time energy exchange data, spectral composition of light, and environmental conditions, optimizing energy usage and reducing primary energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional air-conditioning control systems are used, then basic temperature regulation is achieved, but energy consumption is high and no optimization is realized
Solution Approach 1:
The control system is segmented into multiple independent functional modules: a radiation measurement module with net radiometer, a spectral analysis module with solar probe and optical filters, a control command module, and execution modules for air-conditioning and lighting. This segmentation allows each module to perform a specific function efficiently, optimizing energy usage while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
The control system integrates multiple functions into a single unified platform that simultaneously measures radiation, analyzes spectral composition, controls air-conditioning, and manages lighting systems. The control-command module serves as a universal controller that processes data from multiple sensors and generates coordinated control signals for different building systems, achieving energy optimization across multiple domains without requiring separate control systems.
2Temperature
If air-conditioning systems operate continuously to maintain comfort, then temperature stability is achieved, but primary energy consumption increases
Solution Approach 1:
The system performs preliminary measurements of external radiation and spectral composition to predict future thermal loads on the building. By analyzing the spectral characteristics of incoming radiation and the building's response to different radiation levels, the control system can pre-adjust air-conditioning settings before temperature deviations occur, maintaining comfort while reducing the need for continuous high-energy operation.
Solution Approach 2:
The control system implements a closed-loop feedback mechanism where sensors continuously monitor external radiation, internal temperature, and system performance. The control-command module processes this feedback information and dynamically adjusts air-conditioning operation to maintain temperature stability while optimizing energy consumption. The system learns from historical data to improve its control strategies over time.
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 achieves significant energy savings by modifying regulation laws for air-conditioning and lighting, utilizing data from sensors to adjust delivery temperatures, turn-on/off cycles, and spectral composition of light, thereby reducing overall energy consumption and enhancing energy efficiency.
Implementation Method 1
a net radiometer RADn arranged for providing a first detection signal representing a difference between a first electromagnetic radiation from the sky and a second electromagnetic radiation from the building to be air conditioned
Implementation Method 2
a solar probe SUN arranged for providing a second detection signal representing a spectral composition of a sunlight
Data Source
Figure 1
Figure 2a~2c
Figure 3~4
AI summary
It describes a control system (2) for an air-conditioning plant (3), comprising: a plurality of sensors (Sn) for detecting physical parameters regarding a body to be air-conditioned and/or an environment surrounding said body, and for generating corresponding detection signals; a control-command module (MCP) configured to modify regulation laws as a function of detection signals, and to generate command signals to be supplied to actuator modules (ATT) of an air-conditioning plant (3) for the body. The plurality of sensors (Sn) comprises a net radiometer (RADn) capable of supplying a first detection signal representative of a difference between a first electromagnetic radiation from the sky and a second electromagnetic radiation from a surface of said body to be air-conditioned.