Numerical simulations of the flow fields and temperature distribution in a section of a Boeing 767–300 aircraft cabin

Mboreha, Chanfiou Ahmed; Tytelman, Xavier; Nwaokocha, Collins N.; Layeni, Abayomi T.; Okeze, Ruth C.; Amiri, Abdalah Shaibu

doi:10.1016/j.matpr.2021.06.426

Cited by 7 publications

(6 citation statements)

References 15 publications

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“…Environmental parameters were measured by Cui et al on ten aircrafts in China; they concluded that thermal environment presents differences between middle, front and back of the cabin [7]. Mboreha et al studied numerically temperature and airflow fields in a cabin equipped with distributed inlets above the seat rows for ventilation and compared it to conventional mixing system, showing that the former provides more uniformity and less re-circulation zones, where air quality could worsen [8]. Adopting the same approach, another paper investigates the performance of six innovative personalised ventilation systems in terms of thermal comfort [9].…”

Section: Introductionmentioning

confidence: 99%

Development of lumped-parameters models for the thermal evaluation and air quality in aircrafts

Tognon,

Biasibetti,

Zarrella

2024

J. Phys.: Conf. Ser.

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Aircraft cabins are a challenging category when dealing with thermal comfort and air quality inside means of transport. Two simplified dynamic models are developed. The first one is a lumped resistance-capacitance model for assessing the cabin thermal behaviour during the cruise phase. The fuselage is discretised into several slices and each one is represented through an RC network consisting of eleven nodes, thirteen resistances and three capacities. A thermal balance equation is set for each node and the linear system is solved to calculate the air and surfaces’ temperatures. The model is validated by comparison with literature experimental data from ten flights, showing that the predicted temperatures agree well with the measured ones, presenting an RMSE of 1.5, 1.9 and 1.3 °C for cabin air, floor and cabin internal surface temperatures, respectively. A sensitivity analysis is conducted, for which the internal air temperature increases linearly with occupancy rate and decreases with cruising altitude. Secondly, an air quality model is proposed to evaluate the presence of pollutants inside the cabin, based on a simple concentration balance equation. Ventilation flow rates recommended from standards and a recirculation rate below 50-60% should be set to maintain acceptable CO2 levels.

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Section: Introductionmentioning

confidence: 99%

Development of lumped-parameters models for the thermal evaluation and air quality in aircrafts

Tognon,

Biasibetti,

Zarrella

2024

J. Phys.: Conf. Ser.

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“…Researchers have conducted numerical simulations and predictive analysis of the airflow distribution within the aircraft cabin using computational fluid dynamics (CFD) methods [5][6][7][8]. Zhang and Chen [7] numerically studied the airflow distribution in the dual-channel Boeing 767 airplane.…”

Section: Introductionmentioning

confidence: 99%

“…The simulation results show that the personalized system has the lowest CO 2 concentration and relatively lower air temperature, providing the best air quality. Mboreha et al [8] developed a CFD model for the Boeing 767-300 airplane. The calculation results indicate that the ventilation system with distributed air inlets results in a more uniform airflow distribution and lower overall temperature inside the cabin.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Airflow Velocity and Temperature Distribution in an Aircraft Cabin

Tan,

Chen,

Wang

et al. 2024

J. Phys.: Conf. Ser.

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In this work, a computational fluid dynamics (CFD) model is established to calculate the airflow distribution in the cabin of a single-channel Boeing 737-800 airplane. The RNG k-ε model, considering the calculation of turbulence kinetic energy and its rate of dissipation, is adopted to solve turbulence problems in physical field simulation. The proposed three-dimensional model is able to consider the particular physical factors and spatial structures, which can simulate the detailed distributions of complex physical fields, compared with the one-dimensional lumped parameter model. The velocity and temperature fields under different air supply velocities are then numerically investigated. The calculation results show that when the air velocity at the top air supply inlet is 1.4 m/s, the velocity and temperature distribution inside the cabin can both meet the comfort requirements of humans in the airworthiness standards. The results from this work can help to design an aircraft environmental control system.

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“…The ventilation system currently widely used in commercial aircraft is the mixing ventilation (MV) system, where the regulated airflow enters the cabin at a certain velocity from the ceiling or top of the sidewall, and the airflow leaves the cabin through an outlet near the floor [ 19 ]. However, previous studies have found that the MV system has poor control over pollutants [ [20] , [21] , [22] ], so more and more research is starting to focus on the development of displacement ventilation (DV) systems [ 23 ]. DV systems employ lower airflow velocity dispersion, with inlets generally arranged at the lower sidewalls of the nacelle, while outlets are arranged near the trans -ceiling [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

A numerical study of COVID-19-laden droplets dispersion in aircraft cabin ventilation system

Liu

Yang

et al. 2023

Heliyon

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Numerical simulations of the flow fields and temperature distribution in a section of a Boeing 767–300 aircraft cabin

Cited by 7 publications

References 15 publications

Development of lumped-parameters models for the thermal evaluation and air quality in aircrafts

Development of lumped-parameters models for the thermal evaluation and air quality in aircrafts

Numerical Simulation of Airflow Velocity and Temperature Distribution in an Aircraft Cabin

A numerical study of COVID-19-laden droplets dispersion in aircraft cabin ventilation system

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