HVAC Duct Model Processor for Automated TAB Parameter Calculation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current HVAC system testing, adjusting, and balancing (TAB) processes are slow, expensive, and prone to errors due to reliance on outdated floor plans and the need for repeated adjustments, often requiring extensive labor and material consumption, while also lacking efficient methods for verifying maintenance work and detecting system changes such as leaks or mold formation.
Innovation Solution
An arrangement comprising a processor that receives information on duct dimensions and layout, uses sensors to measure flow parameters, and determines adjustment parameters for components like dampers and valves based on actual system configurations, allowing for real-time monitoring and reporting, and potentially automating adjustments to optimize system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional TAB processes are used with repeated adjustments and sensor measurements, then system accuracy can be achieved, but the process becomes time-consuming and labor-intensive
Solution Approach 1:
The system performs preliminary calculations of adjustment parameters using the duct model and target flow parameters before actual implementation. This allows the TAB technician to make initial adjustments based on calculated values, reducing the need for repeated measurement and adjustment cycles.
Solution Approach 2:
The system creates a digital model (copy) of the duct configuration based on floor plans and as-built information. This virtual model allows for simulation and calculation of adjustment parameters without requiring physical presence at all measurement locations, significantly reducing travel time and repeated on-site adjustments.
2Ease of manufacture
If floor plans are used for determining adjustment parameters, then preliminary adjustments can be calculated, but errors occur when floor plans do not match actual system layout
Solution Approach 1:
The system incorporates feedback mechanisms where the TAB technician inputs actual measurement data and observations during the TAB process. The duct model is then updated with this feedback information, correcting discrepancies between the original floor plans and the actual as-built system. This ensures that adjustment parameters are calculated based on accurate, verified system configuration.
Solution Approach 2:
The duct model is designed to be dynamic and updatable throughout the TAB process. Rather than relying on static floor plans, the model evolves as the technician collects actual system information, allowing adjustment parameters to be recalculated based on the most current and accurate system configuration data available.
3Adaptability or versatility
If components are installed after duct configuration is complete, then system design can be finalized, but extensive labor and material consumption are required for dismantling and reinstallation
Solution Approach 1:
The system allows for preliminary calculation of adjustment parameters and identification of optimal component locations during the design phase using the duct model. This enables planning of component installation to minimize disruption to the duct configuration, reducing the need for extensive dismantling and reinstallation of fire prevention materials and ductwork.
4Loss of information
If manual reporting of maintenance work is performed, then work documentation can be created, but errors occur and customers cannot verify that work was actually carried out
Solution Approach 1:
The system creates a digital copy and record of all TAB measurements, adjustments made, and system parameters. This digital documentation is automatically generated from actual sensor measurements and adjustment data, providing verifiable proof that work was performed. Customers can access this digital record to confirm that maintenance activities were actually carried out as reported.
Data Source
AI summary
An arrangement and method for determining adjustment parameters for at least two components utilized in an HVAC system. The arrangement comprises at least one processor and is configured to receive information regarding a duct configuration comprising at least one duct. The processor is additionally configured to receive target values for a first flow parameter at first and second duct locations corresponding to locations of the first and second components. At least one measured value for a second flow parameter at a measuring location is received, and determined values for the second flow parameter at the first and second duct locations are resolved. First and second flow factors are determined, and first and second adjustment parameters may then be determined for the first and second components.