Cooling System Fluid Chemistry Sensor and Additive Injector
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Solution Overview
Problem
Liquid-cooled environments face challenges in maintaining optimal fluid chemistry, leading to corrosion, leaks, and biological particulates, which are labor-intensive and costly to monitor and adjust, often requiring manual intervention and separate instrumentation.
Innovation Solution
A device comprising a sensor, injector, and controller that monitors fluid chemistry in real-time, automatically adjusts additive levels, and provisions chemicals to maintain balanced chemistry, using impedance sensors and microfluidic delivery to maintain pH, biocide, and corrosion inhibitor levels within threshold ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual monitoring and adjustment of fluid chemistry is performed, then chemical composition can be maintained, but labor costs and service expenses increase significantly
Solution Approach 1:
The system automatically monitors fluid chemistry parameters and provisions additives without human intervention. The sensor continuously measures chemistry attributes, the controller compares readings against target ranges, and the injector automatically adds corrective additives when deviations are detected, enabling the system to self-correct chemical imbalances
Solution Approach 2:
The system implements closed-loop feedback control where sensor measurements of fluid chemistry are continuously fed back to the controller. Based on this feedback, the controller dynamically adjusts additive provisioning to maintain chemistry within specified ranges, creating a self-regulating system that responds to actual fluid conditions
2Measurement precision
If separate instrumentation is used to monitor different chemicals, then comprehensive chemistry monitoring is achieved, but device complexity and instrumentation requirements increase
Solution Approach 1:
A single sensor device performs multiple measurement functions by detecting various fluid chemistry attributes including pH, conductivity, and other chemical parameters. This multi-functional sensor replaces what would traditionally require multiple separate instrumentation devices, simplifying the overall system while maintaining comprehensive monitoring capability
Solution Approach 2:
The system combines the sensing, control, and additive provisioning functions into an integrated unit. The sensor, controller, and injector work as a unified system rather than separate components, reducing instrumentation complexity while achieving comprehensive chemistry management
3Stability of the object's composition
If real-time chemistry monitoring is implemented, then chemical stability is improved, but system complexity and initial costs increase
Solution Approach 1:
The system automatically maintains chemistry stability through self-monitoring and self-correction. The sensor continuously tracks chemistry parameters, and when deviations occur, the controller automatically triggers additive provisioning without requiring external intervention or complex manual procedures
Solution Approach 2:
Real-time feedback from the sensor enables continuous monitoring and immediate response to chemistry changes. The controller receives ongoing measurements and dynamically adjusts additive addition to maintain stability, creating a responsive closed-loop system that adapts to changing fluid conditions
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
This solution reduces service costs, improves chemical stability, minimizes manual intervention, and extends operational lifetime by maintaining balanced fluid chemistry, reducing corrosive stresses and preventing system shutdowns.
Implementation Method 1
obtain sensor output from a sensor in response to a frequency sweep applied to the single sensor that is exposed to cooling fluid
Implementation Method 2
using impedance sensors and microfluidic delivery to maintain pH, biocide, and corrosion inhibitor levels within threshold ranges
Data Source
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AI summary
An example device in accordance with an aspect of the present disclosure includes a sensor, a controller, and an injector. The sensor is to provide sensor output regarding fluid chemistry of a fluid of a cooling system. The controller is to identify attributes of the fluid. The injector is to inject at least one additive into the fluid to bring at least one attribute into a threshold range.