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

Melis Öder1✉,
Havva Demirpolat2,
Fatma Nur Erdoğmuş3,
Süleyman Erten4
1Nurdil Refrigeration Inc.
2Selcuk University
3Nurdil Refrigeration Inc.
4Nurdil Refrigeration Inc.
Published:December 31, 2022
DOI: 10.56038/ejrnd.v2i4.190
Vol. 2, No. 4

Abstract

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.

Keywords
RefrigerationOpen type refrigerated display cabinetDeflectorAir curtainEnergy Efficiency

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Cite This Article
Öder, M., Demirpolat, H., Erdoğmuş, F. N., Erten, S. (2022). Development of Deflector Structure and Effects on Performance: Refrigerated Display Cabinet Application. *The European Journal of Research and Development*, 2(4), 155-168. https://doi.org/10.56038/ejrnd.v2i4.190

Bibliographic Info

JournalThe European Journal of Research and Development
Volume2
Issue4
Pages155–168
PublishedDecember 31, 2022
eISSN2822-2296