Experimental study on the uniform distribution of gas-liquid two-phase flow in a variable-aperture deflector in a parallel flow heat exchanger

Wu, Xuehong; Gao, Zhicheng; Meng, Hua; Wang, Yanling; Cheng, Chuanxiao

doi:10.1016/j.ijheatmasstransfer.2020.119353

Cited by 13 publications

(2 citation statements)

References 29 publications

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“…It has been suggested that the deflector angle should be in the range of 15°-20° to provide better thermal protection [2]. Wu et al (2020) uniform distribution of gas-liquid flow in variable aperture deflector in parallel flow heat exchanger was investigated. Six deflector structures were studied in the experiment.…”

Section: Introductionmentioning

confidence: 99%

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Development of Deflector Structure and Effects on Performance: Refrigerated Display Cabinet Application

Öder

Demirpolat

ERDOĞMUŞ

et al. 2022

EJRnD

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Air flow is of great importance in terms of energy efficiency and homogeneity of the cooled package temperatures in open type refrigerated display cabinets (RDCs). Deflectors are critical components for air curtains which are provides air directioning to air channel and grill. A new deflector structure was investigated to increase the performance of the air curtain in this study. Current design deflector structure (Design 1) and new design deflector structure (Design 2) were compared for temperatures of air off-air on and energy consumption parameters. Airflow in the new design deflector structure was tested under Class-3 conditions (25 °C temperature and %60 relative humidity) with ISO 23953-2 2015 standard. According to the results obtained the data compared with the current design deflector structure. The thermal performance has been increased by reducing the temperature of the air off by 1.2 °C on average, the air on temperature by an average of 2.05 °C and the average package temperature by %17.8 with the new deflector design. Cooling performance was increased using new deflector structure with effective airflow between the air off and air on. In addition, thanks to Design 2, the annual energy consumption of RDC has been reduced by 10.17% and accordingly the CO2 emissions released to the environment have been reduced at the same rate.

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Section: Introductionmentioning

confidence: 99%

“…They observed that it increased from .4 to 21% and from 7.7% to 12.6%. According to these test results, they reported that the A1 deflector with three aperture symmetrical deflector structure had the best effect [3]. designed four different deflectors to prevent the air flow in the air conditioning unit in a high speed train.…”

Section: Introductionmentioning

confidence: 99%