Experimental and numerical analysis of thermally dissipating equipment in an aircraft confined compartment

Butler, Colin; Newport, David

doi:10.1016/j.applthermaleng.2014.08.035

Cited by 11 publications

(2 citation statements)

References 45 publications

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“…The current literature on thermal analysis in aircraft focuses mainly on passenger cabin studies [2,3]. Butler et al [4][5][6] published work for the aircraft crown area. With the advent of more electrical actuator technologies, several researchers focused on this particular aspect [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Influence of Ventilation Flow Rate and Gap Distance on the Radiative Heat Transfer in Aircraft Avionics Bays

Sanchez¹,

Liscouët-Hanke

Bhise

2022

Aerospace

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The feasibility of the future more-electric, hybrid-electric, and all-electric aircraft configurations will depend on a good understanding of thermal aspects early in the design. However, thermal analysis of aircraft equipment bays is typically performed at later design stages to validate if the design meets the minimal certification requirements rather than to optimize the cooling strategy. The presented work aims to provide new insight into thermal aspects in typical aircraft equipment bays. In particular, system thermal interactions, such as radiation, play a more significant role in tightly packaged bays, such as avionics bays. This paper investigates the influence of radiation on the overall system heat dissipation in two representative avionics bays. Using Computational Fluid Dynamics (CFD) simulation, combined with an analytical approach, the authors analyze the impact of several parameters, such as varying mass flow rates and distances between adjacent systems, on their thermal interaction. The results suggest that the radiative effects must be considered when the gap distance between the systems is larger than 0.1 m, the flow rate between two systems is not strong enough to have high convective heat exchanges, when the systems of interest are hidden by other systems from the ventilation sources, and when the system’s internal heat dissipation is significant. Overall, this paper’s results will contribute enhance conceptual design methods, such as the previously developed Thermal Risk Analysis, and help optimize thermal management strategies for future aircraft.

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Section: Introductionmentioning

confidence: 99%

Influence of Ventilation Flow Rate and Gap Distance on the Radiative Heat Transfer in Aircraft Avionics Bays

Sanchez¹,

Liscouët-Hanke

Bhise

2022

Aerospace

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“…Several recent articles on this topic have considered the challenges of providing thermal comfort [6] to [9] and heat transfer in the cabin [10] to [14]. However, the construction of the multilayer cabin wall in the design of aircraft and its influence on the comfortable environment for passengers play a significant role, which is not considered in these papers.…”

Section: Introductionmentioning

confidence: 99%

Thermal Evaluation of Multilayer Wall with a Hat-Stringer in Aircraft Design

Brazhenko¹,

Qiu²,

Cai³

et al. 2022

sv-jme

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In the present paper, we investigate the heat transfer through the multilayer wall of aircraft cabins, as this process influences the comfortable conditions created for most passengers and crew members. The numerical modelling results and calculation of a multilayer wall with a hat-stringer in aircraft design are presented. The thermal characteristics evaluation and their relationship with the design parameters were made. The effect of the air layer size on the overall thermal resistance of the multilayer wall, taking into account the geometrical dimensions and properties of the surfaces, was studied. The relative temperature field in the insulation layer, which crosses the hat-stringer elements of the fuselage frame, is calculated. It is shown that the insufficient thickness of the layer of thermal insulation material in the zone of the hat-stringer at low temperatures leads to a significant deterioration in the multilayer wall characteristics, which can worsen the microclimatic conditions inside the aircraft cabin.

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Fire dynamics simulation in a cable spreading room of a nuclear power plant using fire test results of heat release and toxic gas emission

Lee,

Kim,

Jeong

et al. 2024

J Mech Sci Technol

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Experimental and numerical analysis of thermally dissipating equipment in an aircraft confined compartment

Cited by 11 publications

References 45 publications

Influence of Ventilation Flow Rate and Gap Distance on the Radiative Heat Transfer in Aircraft Avionics Bays

Influence of Ventilation Flow Rate and Gap Distance on the Radiative Heat Transfer in Aircraft Avionics Bays

Thermal Evaluation of Multilayer Wall with a Hat-Stringer in Aircraft Design

Fire dynamics simulation in a cable spreading room of a nuclear power plant using fire test results of heat release and toxic gas emission

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