Identifying the Thermal Parameters and Controlling the Temperature of a High-Altitude Balloon Payload
- Douglas R. Isenberg (Embry-Riddle Aeronautical University–Prescott)
- Brian M. Rookaird (Embry-Riddle Aeronautical University–Prescott)
- Jacob Weisshaupt (Embry-Riddle Aeronautical University–Prescott)
- Jessica Smith (Embry-Riddle Aeronautical University–Prescott)
- Brian Winterling (Embry-Riddle Aeronautical University–Prescott)
Abstract
This paper describes the lumped-parameter modeling, identification, and control of the payload temperature inside a high-altitude balloon gondola. Experimental methods for identifying the lumped thermal resistance and thermal capacitance at the launch-altitude and at high-altitude are described. Utilizing the identified values, both a pressureindependent model and a pressure-dependent model are formulated. With knowledge of the thermal resistance, a bang-off control system is sized to keep the payload temperature above a prescribed limit. Both of the closed-loop models are validated with recorded flight data.
How to Cite:
Isenberg, D. R., Rookaird, B. M., Weisshaupt, J., Smith, J. & Winterling, B., (2012) “Identifying the Thermal Parameters and Controlling the Temperature of a High-Altitude Balloon Payload”, Academic High Altitude Conference 2012(1), 1–14. doi: https://doi.org//ahac.8314
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