Performance of an open refrigerated display cabinet with two air curtains

Li, Xueqiang; Zhang, Zhongyao; Liu, Huan; Hu, Xiuzhen; Liu, Shengchun; Xu, Zheng; Wang, Qihui

doi:10.1016/j.applthermaleng.2022.118549

Cited by 12 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They noted that significant energy savings can be achieved through the installation of a phase change material container. The performance of an open refrigerated display cabinet with two air curtains was investigated by Li et al [27]. It is noted that an open refrigerated display cabinet with two air curtains has better performance characteristics than an open refrigerated display cabinet with one air curtain.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Changes in Packaging Properties of Refrigerated Food Products

2023

View full text Add to dashboard Cite

This study presents the experimental investigations of the thermal conductivity properties of refrigerated packages in an autonomous commercial open refrigerated display cabinet. The study aimed to determine whether the type of packaging can reduce the impact of a malfunctioning refrigeration unit on the product. The characteristics of refrigerated packages are studied during the freezing process on the level of loading and the arrangement of the packages in the display case. For the research, four types of packaging were used: combined, composite, plastic, and pulp. Based on the results obtained, the compliance of the packages with the established/existing requirements was determined during each test. It was found that during the refrigeration process, the permissible temperature norms in the case of individual packages complied with the most commonly used. None of the test packages met the norms during refrigeration by filling the products to the intended limit. As a result, simplified labeling of the respective cooling zones is proposed, and the issue of ensuring the uniformity of the cooling itself remains open. Given the cost of production, it is also proposed to take into account this issue (marking the corresponding cooling zones) when designing similar refrigeration equipment.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigation of Changes in Packaging Properties of Refrigerated Food Products

2023

View full text Add to dashboard Cite

show abstract

“…In the study, the effects of single and double air curtains on system performance were compared. It is stated that ambient air has decisive effects for both air curtains, and that double air curtains can provide energy savings of up to %29, %30.6 and %41.6 for Condition 2, Condition 3 and Situation 6 respectively compared to a single air curtain [10]. Yuan et al (2022) investigated the effects of fin use in RDC.…”

Section: Introductionmentioning

confidence: 99%

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

Öder

Demirpolat

ERDOĞMUŞ

et al. 2022

EJRnD

View full text Add to dashboard Cite

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.

show abstract

“…1.5. Cases for different airflow directions (Li et al, 2022) Nikitin (2020) savo tyrimuose panaudojo 3D supaprastintą šaldytuvo modelį viengubos ir dvigubos oro srautų užuolaidos tyrimams (1.6 pav.). Darbe naudotas supaprastintas 3D šaldytuvo modelis, kuriame atsisakyta ortakių, palikta galinės perforuotosios sienelės perforacija bei korys, kuriuose nustatomas oro srauto greitis ir temperatūra, o skaičiavimams panaudota 1/5 viso modelio ilgio.…”

Section: Skaičiuojamosios Skysčių Dinamikos Modelių Apžvalga Dvimatėj...unclassified

“…When examining methods for turbulence assessment, three main modeling methods are encountered: Large Eddy Simulation (LES), Reynolds-Averaged Navier-Stokes (RANS) equation, and Menter's Shear-Stress Transport (SST) turbulent model. The RANS k-ε turbulent model is commonly found in scientific works, as it is often applied to save computational resources and time (Alzuwaid et al, 2016;Dagaro et al, 2006;Du et al, 2020;Foster et al, 2004;He et al, 2022;Li et al, 2022;Marrineti et al, 2014;Moureh et al, 2016;Nascimento et al, 2019;Orlandi et al, 2013;Rai et al, 2018;Sun et al, 2017;Tsamos et al,. 2019;Wang et al, 2015;Wang et al, 2021;Wu et al, 2014;Yuan et al, 2021;Zhou et al, 2021).…”

Section: Analysis Of Studies On Thermal Flows In Refrigerating Unitsmentioning

confidence: 99%

Terminių srautų, vykstančių šaldymo įrenginiuose, tyrimai

Vengalis

View full text Add to dashboard Cite

Vilniaus Gedimino technikos universiteto Mechanikos inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkas prof. dr. Dalius MAŽEIKA (Vilniaus Gedimino technikos universitetas, Mechanikos inžinerija -T 009). Nariai: prof. dr. Artūras KILIKEVIČIUS (Vilniaus Gedimino technikos universitetas, Mechanikos inžinerija -T 009), dr. Dragan MARINKOVIC (Berlyno technikos universitetas, Vokietija, Mechanikos inžinerija -T 009), dr. Nerijus STRIŪGAS (Lietuvos energetikos institutas, Energetika ir termoinžinerija -T 006), prof. dr. Vytautas TURLA (Vilniaus Gedimino technikos universitetas, Mechanikos inžinerija -T 009). Disertacija bus ginama viešame Mechanikos inžinerijos mokslo krypties disertacijos gynimo tarybos posėdyje 2024 m. birželio 5 d. 10 val. Vilniaus Gedimino technikos universiteto SRA-I posėdžių salėje.

show abstract

Performance of an open refrigerated display cabinet with two air curtains

Cited by 12 publications

References 26 publications

Investigation of Changes in Packaging Properties of Refrigerated Food Products

Investigation of Changes in Packaging Properties of Refrigerated Food Products

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

Terminių srautų, vykstančių šaldymo įrenginiuose, tyrimai

Contact Info

Product

Resources

About