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General Information
Prof. Adrian Olaru
University Politehnica of Bucharest, Romania
I'm happy to take on the position of editor in chief of IJMO. It's a journal that shows promise of becoming a recognized journal in the area of modelling and optimization. I'll work together with the editors to help it progress.
IJMO 2016 Vol.6(4): 199-205 ISSN: 2010-3697
DOI: 10.7763/IJMO.2016.V6.527

Floating Performance Analysis and Extended Lifetime for High Altitude Zero Pressure Balloon

Sherif Saleh

Abstract—This paper presented modeling and simulation for zero pressure balloon trajectories. The simulation was validated by real flight data. Most effective parameters on altitude stability at floating area were investigated. Variation in temperature was the responsible mainly for change in altitude levels. Cloud cover was taken into consideration to demonstrate its influences on climbing rate during ascending and on altitude stability during floating altitude. Initial lift gas quantity was estimated and optimized. The necessary amount of ballast drops was optimized. Results showed the best launching time to improve balloon performance in floating area. Also, cloud cover was very important in balloon simulation and revealed a serious effect on floating altitude more than climbing rate in the ascending process. New estimation for lift gas quantity was useful to keep climbing rate almost constant and reasonable maintaining ascending without ballast drops to support longer lifetime aloft. Another aspect to enhance longer lifetime at floating altitude was the ballast mass consuming per night. It was optimized to avoid losses in ballast masses.

Index Terms—High altitude balloons, ascending trajectory, lift gas, ballast mass.

S. Saleh is with the School of Astronautics, Beihang University, 37 Xueyuan Road, Beijing 100191, China (e-mail: shmtcg40@hotmail.com).


Cite: Sherif Saleh, "Floating Performance Analysis and Extended Lifetime for High Altitude Zero Pressure Balloon," International Journal of Modeling and Optimization vol. 6, no. 4, pp. 199-205, 2016.

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