Temperature Control System with Diagnostic Malfunction Detection
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Solution Overview
Problem
Temperature control systems in buildings often malfunction after changes in the building structure, leading to inefficient heating or cooling and requiring costly and time-consuming troubleshooting to identify defects such as clogged heat exchangers or stuck control valves.
Innovation Solution
The system employs processing means with diagnostic capabilities to detect malfunctions by analyzing physical characteristics like inlet and outlet temperatures and control valve openings, using a combination of hardware and software to identify issues such as clogging, valve stuckness, or incorrect heat exchanger sizing through predetermined condition checks and comparisons with expected values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional temperature control systems are used without diagnostic capabilities, then the system structure remains simple, but malfunction detection and troubleshooting become time-consuming and expensive
Solution Approach 1:
The system performs preliminary diagnostic actions by continuously monitoring physical characteristics and comparing them against expected values. The processing means are pre-programmed with diagnostic algorithms that automatically detect malfunctions before they affect system performance, eliminating the need for time-consuming manual troubleshooting.
Solution Approach 2:
The temperature control system performs self-diagnosis by automatically detecting its own malfunctions through sensor data analysis. The processing means identify issues such as clogged heat exchangers or stuck control valves without external intervention, enabling the system to service itself and reduce dependency on manual maintenance.
2Ease of repair
If manual troubleshooting methods are used to identify malfunctions, then the system structure remains simple, but the cost of maintenance increases due to time-consuming diagnostics
Solution Approach 1:
The system implements continuous feedback loops where sensors monitor physical characteristics, the processing means analyze the data against expected values, and diagnostic information is generated when deviations are detected. This automated feedback mechanism provides immediate malfunction identification, making repairs easier and faster while reducing diagnostic time and maintenance costs.
3Reliability
If no diagnostic means are implemented, then the system remains simple and cost-effective, but malfunction detection requires extensive manual intervention
Solution Approach 1:
The system replaces manual mechanical troubleshooting with automated electronic diagnostic means. Processing means equipped with diagnostic algorithms automatically analyze sensor data to identify malfunctions, substituting human intervention with electronic detection systems that provide reliable and accurate malfunction detection while maintaining cost-effectiveness.
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
Facilitates rapid identification and diagnosis of system malfunctions, reducing the need for extensive troubleshooting and maintenance by providing clear indications of errors, thus improving operational efficiency and reducing costs.
Implementation Method 1
at least two heat exchangers, each heat exchanger having a control valve, a supply port and a return port, the ports being connected to a fluid supply system supplying a heat carrying fluid
Implementation Method 2
each heat exchanger having a control valve
Implementation Method 3
a sensor arrangement detecting at least one physical characteristic of the heat carrying fluid at each heat exchanger
Data Source
Figure 1
AI summary
A temperature control system (1) for influencing a temperature in at least one room (2, 3) of a building is described. The temperature control system (1) comprising at least two heat exchangers (4-6), each heat exchanger (4-6) having a control valve (20-21), a supply port and a return port, the ports being connected to a fluid supply system (7, 8) supplying a heat carrying fluid, a sensor arrangement (12-18; 23-25) detecting at least one physical characteristic of the heat carrying fluid at each heat exchanger (4-6) and at least an additional physical characteristic of the system, the system further comprising processing means (23-25) receiving data from the sensor arrangement (12-18, 23-25), characterized in that the processing means comprise diagnostic means detecting a kind of a malfunction of the temperature control system (1). In such a system the finding of a defect should be facilitated. To this end the processing means comprise diagnostic means detecting a kind of a malfunction of the temperature control system (1).