Design and Development of an Automated Nitrogen Level and Flow Measurement System for Cryogenic Tanks
DOI:
https://doi.org/10.67308/irjist.063Keywords:
Liquid Nitrogen, Level Measurement, Cryogenic Instrumentation, Automated Monitoring, Cryogenic Tanks, Flow MeasurementAbstract
Cryogenic liquids, particularly liquid nitrogen (LN₂), are extensively used in industrial, medical, scientific, and research applications, where accurate level monitoring and controlled fluid transfer are essential for operational safety, efficiency, and resource optimization. Conventional cryogenic measurement methods often rely on independent level or flow sensing devices, manual observation, or complex instrumentation, resulting in limited automation, reduced accuracy under dynamic conditions, and increased risk of overfilling and cryogenic fluid loss. This study presents the design and development of an automated nitrogen level and flow measurement system for cryogenic tanks. The proposed system integrates a turbine flow meter, a cryogenic solenoid valve, and an Arduino-based control unit to provide real-time monitoring, accurate flow measurement, and automated filling control. Pulse signals generated by the turbine flow sensor are processed by the microcontroller to determine the instantaneous flow rate and cumulative transferred volume. A user-defined target volume is continuously monitored, and the solenoid valve is automatically actuated to terminate the filling process once the preset value is achieved. A digital display provides continuous information on flow rate, cumulative volume, and system status. The proposed system is designed using cryogenic-compatible components to ensure reliable operation under extremely low-temperature conditions. The integrated approach enhances measurement accuracy, minimizes manual intervention, improves operational safety, and reduces liquid nitrogen wastage. The developed system offers a practical and cost-effective solution for laboratory facilities, healthcare institutions, and industrial cryogenic storage and distribution applications.
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Copyright (c) 2026 Vaishnavi Dnyaneshwar Singare, Aishwarya Vijay Gangadhare, Samruddhi Prashant Survase, Shivam Samkidas Rathod (Author)
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