Control system for climate conditioning of a building zone
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Solution Overview
Problem
Current climate control systems in buildings, particularly in museums and heritage sites, face challenges in balancing preservation requirements with energy efficiency and thermal comfort, often relying on stringent and fixed climate settings that lead to excessive energy consumption and potential damage from fluctuations.
Innovation Solution
A dynamic control system that calculates climate parameter targets based on real-time sensor measurements, using running averages and rate-limited adjustments to maintain a permissible range, allowing for 'free-running' conditions that reduce active climate conditioning while ensuring preservation and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stringent fixed climate settings are applied to preserve collections, then preservation reliability is improved, but energy consumption increases excessively
Solution Approach 1:
The patent applies dynamics by transitioning from fixed climate setpoints to dynamic, adaptive setpoints that automatically adjust based on outdoor conditions. The system calculates indoor setpoints as a function of outdoor temperature and humidity, allowing the climate parameters to vary dynamically while maintaining preservation reliability and reducing energy consumption through adaptive control.
Solution Approach 2:
The system changes the parameters of climate control by introducing variable setpoints for temperature and humidity that are derived from outdoor conditions. Instead of maintaining constant indoor parameters, the system allows parameters to change adaptively based on environmental conditions, thereby optimizing the balance between preservation and energy efficiency.
2Use of energy by moving object
If seasonal adjustments are made to reduce energy demand, then energy efficiency is improved, but climate fluctuations may increase
Solution Approach 1:
The system implements feedback by continuously monitoring outdoor climate conditions and using this information to adjust indoor setpoints. The control system receives outdoor temperature and humidity data, processes this information through calculation rules, and dynamically adjusts indoor climate targets accordingly, creating a closed-loop feedback mechanism that balances energy efficiency with climate stability.
Solution Approach 2:
The system performs preliminary action by pre-calculating appropriate indoor setpoints based on current outdoor conditions before actual climate control actions are taken. The control system determines target temperature and humidity levels in advance based on outdoor measurements, allowing for proactive rather than reactive climate management.
3Reliability
If fixed setpoints are maintained for preservation, then preservation requirements are met, but thermal comfort deteriorates
Solution Approach 1:
The system achieves universality by designing a climate control system that simultaneously satisfies multiple functions: preservation of collections and thermal comfort of occupants. The adaptive setpoint calculation incorporates both preservation constraints and comfort considerations, allowing the same system to serve dual purposes rather than requiring separate control strategies for each function.
Data Source
AI summary
The invention relates to a control system for a building zone which is climate conditioned by a climate conditioning system, wherein the climate conditioning system controls at least one climate parameter in the building zone, the climate parameter being at least one of: temperature (T) and humidity (RH). The control system is configured to provide a climate parameter target to a building management system. The climate parameter target is determined dynamically based on current sensor measurements while taking energy, thermal comfort and preservation requirements into account. Namely, rather than continuously steering the climate parameter to reach a preset value, some ‘free-running’ of the climate parameter is allowed by calculating a permissible range for the climate parameter, which reduces active climate conditioning and thereby contributes to energy savings. To further take preservation requirements into account, the rate of change in the climate parameter is limited to a maximum.