Heat transfer and thermohydrodynamic fluctuations in aluminum–air fuel cell

Sikovsky, Dmitrii Ph.; Kharlamov, S. M.; Palymsky, V. I.; Dobroselsky, K. G.; Vlasenko, M. G.; Ilyushin, B. B.

doi:10.1134/s1810232815040141

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…The amount of the hydrogen generated during the experiment is considered negligible. Similar treatment processes can be referred to the paper . At the same time, the aluminum surface is oxidized into a fine Al 2 O 3 film, preventing this oxidation reaction from proceeding.…”

Section: Resultsmentioning

confidence: 96%

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A novel experimental study on discharge characteristics of an aluminum-air battery

Fang

2019

Int J Energy Res

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Summary In order to explore the discharge characteristics of aluminum‐air battery and find out the best discharge performance of aluminum‐air battery under the optimum working conditions, this paper studies discharge performances of an aluminum‐air battery under various ambient temperature and battery discharge conditions. The relationship between the temperature rise of the battery electrolyte and the discharge current density was studied by an experimental method. Effects of the electrolyte concentration and the ambient temperature on the battery discharge voltage were investigated. In addition, a novel method for calculating the efficiency of the aluminum‐air battery was proposed. Results show that the temperature of the aluminum‐air battery electrolyte gradually increases as its discharge current density increases and the electrolyte temperature rise could reach as high as 10°C after 60 minutes with a constant 35 mA cm−2 discharge current density. The specific energy and the specific capacity of the aluminum‐air battery first increase and then decrease as the current density increases. When the current density is 25 mA cm−2, the specific energy has a peak of 3105 Wh kg−1 for the condition of the chamber temperature 40°C and the electrolyte concentration 2 mol L−1 (2 M), while the specific capacity has a peak of 2207 Ah kg−1; furthermore, its efficiencies under various conditions increase first with the current density, reach a peak range of 19.6% to approximately 36% at 25 mA cm−2, and then decrease. These experimental results could be used as a technical guidance for the optimization in thermal management designs of the aluminum‐air battery under various operating conditions.

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Section: Resultsmentioning

confidence: 96%

“…Similar treatment processes can be referred to the paper. 36 At the same time, the aluminum surface is oxidized into a fine Al 2 O 3 film, preventing this oxidation reaction from proceeding. Therefore, the mass of Al 2 O 3 film is negligible so that its dissolution heat effect in this experiment can be neglected.…”

Section: Resultsmentioning

confidence: 99%

A novel experimental study on discharge characteristics of an aluminum-air battery

Fang

2019

Int J Energy Res

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“…Antunes and Skrzypkiewicz [30 * ] observed that gas transport in a direct carbon solid fuel cell is enhanced by natural convection due to a pressure gradient brought about by the Boudouard reaction. Sikovsky et al [31] simulated the heat transfer in an aluminium-air fuel cell, taking into account Joule heating and the heat flux due to the electrochemical reaction. They observed that thermal convection leads to fluctuations in the cell voltage, which were qualitatively confirmed by experimental data.…”

Section: Natural Convection In Fuel and Thermogalvanic Cellsmentioning

confidence: 99%

Natural convection effects in electrochemical systems

Novev

Compton

2018

Current Opinion in Electrochemistry

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights Recent work on natural convection in electrochemistry is reviewed.  Experimental and theoretical/simulation studies in the area are considered.  Free convection driven by concentration and/or temperature gradients is discussed.  Natural convection in systems such as electrorefining and fuel cells is covered.  A critical assessment of the concept of 'spontaneous convection' is given.

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Heat transfer and thermohydrodynamic fluctuations in aluminum–air fuel cell

Cited by 2 publications

References 8 publications

A novel experimental study on discharge characteristics of an aluminum-air battery

A novel experimental study on discharge characteristics of an aluminum-air battery

Natural convection effects in electrochemical systems

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