Low-cost commissioning method for the air-conditioning systems in existing large public buildings
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Solution Overview
Problem
Existing air conditioning systems in large public buildings face issues with high energy consumption, inefficient operation, and high commissioning costs due to static and dynamic imbalances, leading to poor cooling and heating effects, and inadequate management levels.
Innovation Solution
A low-cost commissioning system and method that includes constructing fault diagnosis, load prediction, and optimization models for air conditioning systems, using input variables such as temperature differences and occupant numbers to adjust pump frequencies, detect non-condensable gases, and optimize energy consumption through a system analysis, load prediction, and optimization algorithm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional commissioning methods are used for air-conditioning systems, then system operation reliability is improved, but commissioning cost increases significantly
Solution Approach 1:
The patent uses building information models (BIM) to create a digital copy of the air-conditioning system, allowing virtual commissioning and diagnosis without requiring extensive physical testing and manual intervention, thereby reducing commissioning costs while maintaining reliability
Solution Approach 2:
The patent replaces traditional mechanical commissioning methods with automated diagnostic systems and algorithms that use sensor data and building management system information to detect and diagnose system issues, reducing the need for manual commissioning activities and associated costs
2Use of energy by moving object
If variable water temperature control or variable flow control methods are used, then energy consumption is reduced, but system operation stability deteriorates
Solution Approach 1:
The patent implements a diagnostic system that continuously monitors system parameters and provides feedback to the building management system, enabling dynamic adjustment of control strategies to maintain both energy efficiency and operational stability through real-time system state awareness
Solution Approach 2:
The patent enables dynamic control of water temperature and flow rates based on real-time building load conditions and system performance data, allowing the system to adapt to changing conditions while maintaining stability through automated diagnostic and adjustment mechanisms
3Adaptability or versatility
If static imbalances or dynamic imbalances occur in the air-conditioning system, then system adaptability improves, but cooling and heating effects deteriorate
Solution Approach 1:
The diagnostic system continuously monitors system performance and provides feedback to detect imbalances, enabling timely correction of distribution issues while maintaining the system's ability to adapt to different building zones and conditions
Solution Approach 2:
The patent enables zone-specific diagnostic and control adjustments, allowing different parts of the air-conditioning system to be optimized independently for their specific requirements, improving both local performance and overall system adaptability
Data Source
AI summary
The present disclosure is drawn to a low-cost commissioning method for the air-conditioning systems in existing large public buildings, that mainly aims at the commissioning of the air-conditioning system. The system comprises a system analysis sub-module, a load prediction sub-module, an optimization scheme sub-module, and a control strategy sub-module. The main method in the commissioning system is a low-cost commissioning method for the air-conditioning systems in existing large public buildings.