Gas Discharge Chamber Blower Control for Lower Energy Use
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Solution Overview
Problem
Gas discharge light sources, such as excimer lasers, consume excessive energy due to maintaining a constant blower speed, leading to inefficiency and potential failures.
Innovation Solution
A control apparatus adjusts the blower speed in gas discharge chambers based on fault monitoring and performance metrics, using decrement and increment modules to optimize energy consumption within a safe speed range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the blower speed is maintained constant to ensure reliable operation of the gas discharge chamber, then the reliability is improved, but the energy consumption increases
Solution Approach 1:
The blower speed is changed from a static constant value to a dynamic variable that adjusts based on real-time monitoring of operating conditions. The controller continuously monitors parameters such as gas pressure, temperature, and discharge chamber status, and dynamically modifies the blower speed to maintain reliable operation while minimizing energy consumption during periods of reduced demand.
Solution Approach 2:
A feedback control system is implemented where the controller monitors operating conditions of the gas discharge chamber and uses this information to adjust the blower speed. The system continuously compares actual operating parameters against desired ranges and modifies blower operation accordingly, creating a closed-loop control that ensures reliability while optimizing energy usage.
2Loss of energy
If the blower speed is reduced to decrease energy consumption, then the energy efficiency is improved, but the risk of operational failures increases
Solution Approach 1:
The system performs preliminary monitoring of operating conditions to predict when blower speed reductions might compromise reliability. By continuously tracking parameters such as gas pressure trends, temperature variations, and discharge chamber status, the controller proactively adjusts blower speed before operational failures can occur, allowing energy savings without sacrificing reliability.
Solution Approach 2:
The control system automatically monitors its own operating conditions and makes self-adjustments to blower speed without external intervention. The system serves itself by detecting when reduced blower speed is safe and when full speed is required, enabling autonomous optimization of energy efficiency while maintaining operational reliability.
Data Source
AI summary
A control apparatus for a light source including a plurality of gas discharge chambers with a blower being arranged in each gas discharge chamber. The control apparatus includes: a fault monitoring module configured to, at regular intervals of usage of the light source, monitor one or more operating conditions of the light source, and, for each monitored operating condition, determine a fault status and a fault type that relates to which blower of a gas discharge chamber influences the monitored operating condition; and a control module configured to receive the determined fault statuses and the determined fault types from the fault monitoring module; select at least one gas discharge chamber; and send an instruction to the blower in the selected at least one gas discharge chamber, the instruction being based on the determined fault statuses and the determined fault types.