[Case Study of Precision Humidity Generation] SOFC Long-term Stability Evaluation
Dramatic improvement in the reliability of long-term stability evaluation! Case studies on humidity control using a recirculating saturated tank method.
This document introduces a case where a precise humidity generator (recirculating saturation tank method) was implemented for the long-term stability evaluation of solid oxide fuel cells (SOFCs). Traditionally, there were issues such as temperature variations due to external heating, fluctuations in temperature and humidity levels caused by automatic water replenishment, and disturbances from seasonal and room temperature changes, making it difficult to maintain a precise and constant moisture level in hydrogen over extended periods. By introducing this product, the impact of disturbances was minimized, achieving stable humidification. The recirculating saturation tank method, which bubbles the humidified gas back into the water to equilibrate the liquid phase temperature before separating the gas and liquid, dramatically improved the reliability of long-term stability evaluations. [Challenges] - Temperature variations due to external heating and fluctuations in temperature and humidity levels from automatic water replenishment - Impact of disturbances from seasonal and room temperature changes - Maintaining a precise and constant moisture level in hydrogen sent to the fuel electrode over extended periods *For more details, please download the PDF or feel free to contact us.*
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【Specifications of the Precision Humidity Generator】 ■ Stage 1 (Coarse Humidification): Bubbling gas in the liquid to achieve rough humidification ■ Stage 2 (Reflux and Rebalancing): Guiding the gas to the reflux pipe and passing it through the liquid again to achieve thermal equilibrium with the liquid phase temperature ■ Gas-Liquid Separation: Returning excess moisture to the liquid and adjusting the exit gas to a saturated state corresponding to the liquid phase temperature *For more details, please download the PDF or feel free to contact us.
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Since its establishment in 1996, our company has established and maintained a high potential in the development of measurement and control technology related to temperature, humidity, pressure, and flow rate through our experience in the manufacturing and sales of fuel cell evaluation test equipment, catalyst reaction evaluation equipment, and constant dew point generation equipment. Our staff is a group of intellectuals with individual specialists in system development, equipment development and design, and technical sales. Moving forward, we aim to promote the dissemination of these core competencies in the field of humidity control as a key player in creating innovations.