Multi Object Spectrograph of the Fireball-II Balloon Experiment

Multi- and In-Stabilities in Gas Partitioning Between Nanoporous Materials and Rubber Balloons

10.26434/chemrxiv.7135928.v1 ◽

2018 ◽

Author(s):

Cory Simon ◽

carlo carraro

Keyword(s):

Thermodynamic Equilibrium ◽

Stable States ◽

Temperature Changes ◽

Adsorbed Gas ◽

Rubber Balloon ◽

Balloon Size ◽

Metal Organic ◽

Balloon Experiment ◽

Adsorbent System ◽

Balloon System

<div>In the two-balloon experiment, two rubber balloons are connected and allowed to exchange gas. Owing to the non-monotonic relationship between the radius of the balloon and the pressure of gas inside of it, the two-balloon system presents multi- and in-stabilities.</div><div><br></div><div>Herein, we consider a two-adsorbent system, where two different adsorbents are allowed to exchange gas. We show that, for rigid adsorbents, the thermodynamic equilibrium state is unique.</div><div><br></div><div>Then, we consider an adsorbent-balloon system, where an adsorbent exchanges gas with a rubber balloon. This system can exhibit multiple states at thermodynamic equilibrium-- two (meta)stable and one unstable. The size of the balloon, pressure of gas in the balloon, and partitioning of gas between the adsorbent and the balloon differ among the equilibrium states. Temperature changes and the addition/removal of gas into/from the adsorbent-balloon system can induce catastrophe bifurcations and show hysteresis. Furthermore, the adsorbent-balloon system exhibits a critical temperature where, when approached from below, the discrepancy of balloon size between the two (meta)stable states decreases and, beyond, bistability is impossible.</div><div><br></div><div>Practically, our findings preclude multiple partitions of adsorbed gas in rigid mixed-linker metal-organic frameworks and may inspire new soft actuator and sensor designs.</div>

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Polar patrol balloon experiment in Antarctica

Advances in Space Research ◽

10.1016/0273-1177(93)90286-k ◽

1993 ◽

Vol 13 (2) ◽

pp. 127-130 ◽

Cited By ~ 5

Author(s):

M. Ejiri ◽

A. Kadokura ◽

T. Hirasawa ◽

N. Sato ◽

R. Fujii ◽

...

Keyword(s):

Balloon Experiment

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Evaluation of Aerodynamic Performance of Mars Airplane in Scientific Balloon Experiment

Fluid Mechanics Research International Journal ◽

10.15406/fmrij.2017.01.00012 ◽

2017 ◽

Vol 1 (3) ◽

Cited By ~ 2

Author(s):

Masayuki Anyoji ◽

Masato Okamoto ◽

Koji Fujita ◽

Hiroki Nagai ◽

Akira Oyama

Keyword(s):

Aerodynamic Performance ◽

Balloon Experiment

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A constant-altitude balloon experiment at 48 kilometers

Journal of Geophysical Research Atmospheres ◽

10.1029/jc075i018p03501 ◽

1970 ◽

Vol 75 (18) ◽

pp. 3501-3512 ◽

Cited By ~ 2

Author(s):

Harold N. Ballard ◽

Norman J. Beyers ◽

Miguel Izquierdo ◽

John Whitacre

Keyword(s):

Balloon Experiment ◽

Constant Altitude

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Balloon Experiment Technique

Physics and Chemistry in Space - X-Ray Emission of Auroral Electrons and Magnetospheric Dynamics ◽

10.1007/978-3-642-70398-0_1 ◽

1986 ◽

pp. 1-22

Author(s):

Leonid L. Lazutin

Keyword(s):

Balloon Experiment ◽

Experiment Technique

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Multi- and instabilities in gas partitioning between nanoporous materials and rubber balloons

Proceedings of The Royal Society A Mathematical Physical and Engineering Sciences ◽

10.1098/rspa.2018.0703 ◽

2019 ◽

Vol 475 (2222) ◽

pp. 20180703 ◽

Cited By ~ 3

Author(s):

Cory M. Simon ◽

Carlo Carraro

Keyword(s):

Thermodynamic Equilibrium ◽

Stable States ◽

Temperature Changes ◽

Adsorbed Gas ◽

Rubber Balloon ◽

Balloon Size ◽

Metal Organic ◽

Balloon Experiment ◽

Adsorbent System ◽

Balloon System

In the two-balloon experiment, two rubber balloons are connected and allowed to exchange gas. Owing to the non-monotonic relationship between the radius of the balloon and the pressure of gas inside it, the two-balloon system presents multi- and in-stabilities. Herein, we consider a two-adsorbent system, where two different adsorbents are allowed to exchange gas. We show that, for rigid adsorbents, the thermodynamic equilibrium state is unique. Then, we consider an adsorbent–balloon system, where an adsorbent exchanges gas with a rubber balloon. This system can exhibit multiple states at thermodynamic equilibrium– two (meta)stable and one unstable. The size of the balloon, pressure of gas in the balloon, and partitioning of gas between the adsorbent and the balloon differ among the equilibrium states. Temperature changes and the addition/removal of gas into/from the adsorbent–balloon system can induce catastrophe bifurcations and show hysteresis. Furthermore, the adsorbent–balloon system exhibits a critical temperature where, when approached from below, the discrepancy of balloon size between the two (meta)stable states decreases and, beyond, bistability is impossible. Practically, our findings preclude multiple partitions of adsorbed gas in rigid, mixed-linker or stratified metal-organic frameworks and may inspire new soft actuator and sensor designs.

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