Numerical Analysis of Wick-Type Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Electric Aircraft Motors
The development of thermal control systems has become an important issue in next-generation electric aircraft design due to the increase in heat exhausted with electrification. In this paper, a wick-type two-phase mechanically pumped fluid loop system for future electric aircraft was proposed throug...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/5/1800 |
| _version_ | 1797475234560868352 |
|---|---|
| author | Xinyu Chang Koji Fujita Hiroki Nagai |
| author_facet | Xinyu Chang Koji Fujita Hiroki Nagai |
| author_sort | Xinyu Chang |
| collection | DOAJ |
| description | The development of thermal control systems has become an important issue in next-generation electric aircraft design due to the increase in heat exhausted with electrification. In this paper, a wick-type two-phase mechanically pumped fluid loop system for future electric aircraft was proposed through the investigation of current two-phase flow cooling technology. Taking the experimental electric aircraft X-57 as an example, a wick-type two-phase mechanically pumped fluid loop with four evaporators for transporting 12 kW of waste heat within an 80 °C temperature limit was proposed and its feasibility was confirmed. A numerical model was constructed and validated to predict the operating characteristics of a two-phase mechanically pumped fluid loop. The optimal pump outputs under-even and uneven heat load conditions and was investigated for the first time by considering the vapor-liquid separation conditions in each flow path and the power consumption of the pump. Under the optimal pump output condition, the operating characteristics of the wick-type two-phase mechanically pumped fluid loop system were calculated. The calculation results indicate that the proposed wick-type two-phase mechanically pumped fluid loop is suitable as the thermal control system for an X-57 electric aircraft motor, as the calculation results satisfied the operational requirements of the motor. |
| first_indexed | 2024-03-09T20:41:15Z |
| format | Article |
| id | doaj.art-e329cefaff3246d0ad42d5607f417486 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T20:41:15Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-e329cefaff3246d0ad42d5607f4174862023-11-23T22:57:40ZengMDPI AGEnergies1996-10732022-02-01155180010.3390/en15051800Numerical Analysis of Wick-Type Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Electric Aircraft MotorsXinyu Chang0Koji Fujita1Hiroki Nagai2Institute of Fluid Science, Tohoku University, Sendai 9808577, JapanInstitute of Fluid Science, Tohoku University, Sendai 9808577, JapanInstitute of Fluid Science, Tohoku University, Sendai 9808577, JapanThe development of thermal control systems has become an important issue in next-generation electric aircraft design due to the increase in heat exhausted with electrification. In this paper, a wick-type two-phase mechanically pumped fluid loop system for future electric aircraft was proposed through the investigation of current two-phase flow cooling technology. Taking the experimental electric aircraft X-57 as an example, a wick-type two-phase mechanically pumped fluid loop with four evaporators for transporting 12 kW of waste heat within an 80 °C temperature limit was proposed and its feasibility was confirmed. A numerical model was constructed and validated to predict the operating characteristics of a two-phase mechanically pumped fluid loop. The optimal pump outputs under-even and uneven heat load conditions and was investigated for the first time by considering the vapor-liquid separation conditions in each flow path and the power consumption of the pump. Under the optimal pump output condition, the operating characteristics of the wick-type two-phase mechanically pumped fluid loop system were calculated. The calculation results indicate that the proposed wick-type two-phase mechanically pumped fluid loop is suitable as the thermal control system for an X-57 electric aircraft motor, as the calculation results satisfied the operational requirements of the motor.https://www.mdpi.com/1996-1073/15/5/1800electric aircraft cooling devicesnumerical modelmechanically pumped fluid loop |
| spellingShingle | Xinyu Chang Koji Fujita Hiroki Nagai Numerical Analysis of Wick-Type Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Electric Aircraft Motors Energies electric aircraft cooling devices numerical model mechanically pumped fluid loop |
| title | Numerical Analysis of Wick-Type Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Electric Aircraft Motors |
| title_full | Numerical Analysis of Wick-Type Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Electric Aircraft Motors |
| title_fullStr | Numerical Analysis of Wick-Type Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Electric Aircraft Motors |
| title_full_unstemmed | Numerical Analysis of Wick-Type Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Electric Aircraft Motors |
| title_short | Numerical Analysis of Wick-Type Two-Phase Mechanically Pumped Fluid Loop for Thermal Control of Electric Aircraft Motors |
| title_sort | numerical analysis of wick type two phase mechanically pumped fluid loop for thermal control of electric aircraft motors |
| topic | electric aircraft cooling devices numerical model mechanically pumped fluid loop |
| url | https://www.mdpi.com/1996-1073/15/5/1800 |
| work_keys_str_mv | AT xinyuchang numericalanalysisofwicktypetwophasemechanicallypumpedfluidloopforthermalcontrolofelectricaircraftmotors AT kojifujita numericalanalysisofwicktypetwophasemechanicallypumpedfluidloopforthermalcontrolofelectricaircraftmotors AT hirokinagai numericalanalysisofwicktypetwophasemechanicallypumpedfluidloopforthermalcontrolofelectricaircraftmotors |