INNOVATIVE DOOR DESIGN FOR REFRIGERATED DISPLAY CABINET AND EXPERIMENTAL INVESTIGATION OF ITS EFFECT ON PERFORMANCE

Yıl 2025, Cilt: 13 Sayı: 2, 592 - 608, 30.06.2025

Fatma Nur Erdoğmuş , Sedanur Bilgin , Sümeyra İbiş , Leyziva Aydemirli

https://doi.org/10.29109/gujsc.1639966

Öz

Refrigerated display cabinet (RDC) play a critical role in the food industry in displaying products and preserving their freshness. However, the high energy consumption in these systems brings with it the need for sustainability and efficiency-oriented solutions. In this study, it was aimed to increase insulation performance and improve energy efficiency by reducing heat gains from RDC doors. For this purpose, a new door structure was designed using argon gas and plastic U-profile between the glasses instead of the air and aluminum U-profile used in the existing double-glazed system. The thermal performances of the new and existing systems were compared and the prototype was tested in accordance with the TS EN ISO 23953-2:2024 standard. The test results showed that the new door design provides a more balanced temperature distribution between the inner and outer surfaces, thus reducing heat transfer and increasing thermal insulation performance. When evaluated in terms of energy consumption, it was determined that the new design consumed 3.94% less energy compared to the existing system and provided a 3.90% improvement in the Energy Efficiency Index (EEI) value. At the same time, both systems are in the “B” energy class. In addition, the material cost of the new design has decreased by 1.3%, while the production time has been shortened by 65.66%.
As a result, the improved door design provides a significant improvement in economic and environmental terms by reducing energy consumption.

Anahtar Kelimeler

Energy efficiency , Industrial refrigeration , CO2 refrigerant , Refrigerated display cabinet

Teşhir Tipi Soğutucular İçin Yenilikci Kapı Tasarımı Ve Performansa Etkisinin Deneysel Araştırılması

Öz

Teşhir tipi soğutucular (TTS), gıda sektöründe ürünlerin sergilenmesi ve tazeliğinin korunmasında kritik bir rol oynamaktadır. Ancak, bu sistemlerdeki yüksek enerji tüketimi, sürdürülebilirlik ve verimlilik odaklı çözümlere olan ihtiyacı da beraberinde gelmektedir. Bu çalışmada, TTS kapılarından olan ısı kazançlarını azaltarak yalıtım performansını artırmak ve enerji verimliliğini iyileştirmek amaçlanmıştır. Bu amaç doğrultusunda çift camlı mevcut sistemde kullanılan hava ve alüminyum U-profil yerine, camlar arasında argon gazı ve plastik U-profil kullanarak yeni bir kapı yapısı tasarlanmıştır. Yeni ve mevcut sistemlerin termal performansları karşılaştırılmış ve prototip, TS EN ISO 23953-2:2024 standardına uygun olarak test edilmiştir. Gerçekleştirilen test sonuçları, yeni kapı tasarımının iç ve dış yüzeyler arasında daha dengeli bir sıcaklık dağılımı sağladığını ve bu sayede ısı transferini azaltarak termal yalıtım performansını artırdığını ortaya koymuştur. Enerji tüketimi açısından değerlendirildiğinde, yeni tasarımın mevcut sisteme kıyasla %3,94 daha az enerji harcadığı, Enerji Verimlilik Endeksi (EVE) değerinde %3,90’lık bir iyileşme sağladığı belirlenmiştir. Aynı zamanda her iki sistem de “B” enerji sınıfında yer almaktadır. Ayrıca, yeni tasarımın malzeme maliyeti %1,3 azalırken, üretim süresi %65,66 kısalmıştır.
Sonuç olarak, geliştirilen kapı tasarımı, enerji tüketimini azaltarak ekonomik ve çevresel açıdan önemli bir iyileştirme sağlamaktadır.

Anahtar Kelimeler

Enerji verimliliği , Endüstriyel soğutma , CO2 soğutucu akışkan , Teşhir tipi soğutucu

Kaynakça

• [1] Resmi Gazete, 2024. Florlu Sera Gazlarına İlişkin Yönetmelik, Sayı: 32693. 15 Ekim 2024 Salı.
• [2] Türkiye Cumhuriyeti Cumhurbaşkanlığı Strateji ve Bütçe Başkanlığı. 12. Kalkınma Planı (2024-2028).
• [3] Erten S., Erdoğmuş F.N., Öder M., Ezber A.B., Ataş Ş. Ve Aktaş M. (2024). Soğutma Sistemlerinin ve Çevresel Etkilerinin Uluslararası Standart ve Yönetmelik Kriterleri Doğrultusunda İncelenmesi. Yenilikçi Teknolojiler ve Bilimsel Araştırma Yöntemleri, Ankara/Türkiye.
• [4] Cüce, P.M., Cüce, E. & Şen, H. (2022). Numerical investigation of barrier effect with air, argon and krypton gases in double glazing application. 19th International Conference on Sustainable Energy Technologies, İstanbul, Turkey, pp.355-362, 2022.
• [5] Cho, K., Cho, D.W., Koo. B., Yun, Y. (2023). Thermal Performance Analysis of Windows, Based on Argon Gas Percentages between Window Glasses. Buildings 2023, 13(12), 2935.
• [6] Li, J., Tian, Y., Sun, S. & Li, J., Zhang, L. & Chen, K. (2018). Effect of Argon Filling Ratio on Heat Transfer Coefficient of Double-Glazing. Advanced Functional Materials, 327-336.
• [7] Baek, S., Kim, S. (2021). Analysis of the Surface Temperature and Energy Performance for the Double Paned Glazing Filled with Carbon Dioxide as an Insulating Gas. Turkish Journal of Computer and Mathematics Education (TURCOMAT). 12. 617-625.
• [8] Onatayo, D., Aggarwal, R, & Srinivasan, R. & Shah, B. (2024). A data-driven approach to thermal transmittance (U-factor) calculation of double-glazed windows with or without inert gases between the panes. Energy and Buildings. 305. 113907.
• [9] Cüce, E. (2018). Accurate and reliable U-value assessment of argon-filled double glazed windows: A numerical and experimental investigation. Energy and Buildings, Volume 171, 2018, Pages 100-106, ISSN 0378-7788.
• [10] Summ, T., Ehrenwirth, M., Trinkl, C., Zörner, W., Pischow, K., Greenough, R., Oyinlola M., (2023). Effect of argon concentration on thermal efficiency of gas-filled insulating glass flat-plate collectors. Applied Thermal Engineering, Volume 230, Part A, 2023, 120657, ISSN 1359-4311.
• [11] Sadeghi, G., Safarzadeh, H., Bahiraei, M., Ameri, M. & Raziani, M. (2019). Comparative study of air and argon gases between cover and absorber coil in a cylindrical solar water heater: An experimental study. Renewable Energy, Volume 135, 2019, Pages 426-436, ISSN 0960-1481.
• [12] Lolli, N. & Andresen, I. (2016). Aerogel vs. argon insulation in windows: A greenhouse gas emissions analysis. Building and Environment, Volume 101, 2016, Pages 64-76, ISSN 0360-1323.
• [13] Bazgaou, A., Aqili, N., Benahmed, A., Ibaaz, K., Oubenmoh, S., Er-Raki, M., Belhorma, B., Amenzou, N., Saadaoui, A., Hartiti, B., Labrim, H., Marah, H. (2023). Optimizing greenhouse design: Effect of argon double glazing on climatic factors distribution and energy savings. Solar Energy, Volume 265, 2023, 112145, ISSN 0038-092X.
• [14] Shaik S.B.,Gorantla K.,Shaik S.,Afsal A., Rajhi A.,Cuce E.,(2023) Experimental and theoretical examination of the energy performance and CO2 emissions of room air conditioners utilizing natural refrigerant R290 as a substitute for R22. Journal of Thermal Analysis and Calorimetry Volume 148, January 2023.
• [15] Mert Cuce P.,Cuce E.,Guclu T.,Shaik S., Alshahrani S., Saleel A.,(2022). Effect of using hybrid nanofluids as a coolant on the thermal performance of portable thermoelectric refrigerators. Sustainable Energy Technologies and Assessments Volume 53, Part C, October 2022, 102685.
• [16] Cuce E.,Guclu T., Mert Cuce P.,(2020). Improving thermal performance of thermoelectric coolers (TECs) through a nanofluid driven water to air heat exchanger design: An experimental research. Energy Conversion and Management Volume 214, 15 June 2020, 112893.
• [17] Yamankaradeniz, R., Horuz, İ., Kaynaklı, Ö., Coşkun, S. & Yamankaradeniz, N. (2017). Soğutma Tekniği ve Isı Pompası Uygulamaları, Bursa: Dora Yayıncılık.
• [18] Çengel Y., A., (2009). Isı ve Kütle Transferi Pratik Bir Yaklaşım, 3.basım, İzmir: Güven Bilimsel Yayınları.
• [19] Aydın, O. (2006). Conjugate heat transfer analysis of double pane windows. Building and Environment, Volume 41, Issue 2, 2006, Pages 109-116, ISSN 0360-1323.
• [20] Chaomuang, N., Laguerre, O., Flick, D. (2020). A simplified heat transfer model of a closed refrigerated display cabinet. Thermal Science and Engineering Progress, Volume 17, 2020, 100494, ISSN 2451-9049.
• [21] TS EN ISO 23953-2:2024 Soğutuculu teşhir dolapları-Bölüm:2 Sınıflandırma, kurallar ve deney şartları (ISO 23953-2:2023)
• [22] 2019/2018 of 11 March 2019 supplementing regulation (eu) 2017/1369 of the european parliament and of the council with regard to energy labelling of refrigerating appliances with a direct sales function. official journal of the European Union, (2019).
• [23] Erten, S., Öder, M., Aktaş, M., Şevik, S., & Şensoy, B. (2024). Design and experimental analysis of condensate pan for plug-in refrigerated display cabinets: Improving drying efficiency. Applied Thermal Engineering, 248, 123198
• [24] Jarahnejad, M., “New Low GWP Synthetic Refrigerants”, Master of Science Thesis, 2012.
• [25] Referans Metal Ltd. AMS 4156 AlMg0.7Si 6063 T6. https://www.referansmetal.com/alasimli-aluminyum/product/260/uzay-havacilik-savunma/boru-profil-ekstruzyon/ams-4156-almg0-7si-6063-t6
• [26] Plastimak- Plastik Profil Enjeksiyon San. Tic. A.Ş. (2021, January 5). Pls Hard Pvc – 10 Technical Information. https://www.plastimak.com/
• [27] Yakut A.K., Selbaş R. ve Yakut M.Z. (2022). Mühendislikte Isı Transferi, Isparta Uygulamalı Bilimler Üniversitesi, Yayın No: 008.
• [28] Aktekeli B., Aktaş M., Koşan M., Arslan E. ve Şevik S. (2025). Experimental study of a novel design bi-fluid based photovoltaic thermal (PVT)-assisted heat pump dryer. Renewable Energy Volume 238, January 2025, 12197.
• [29] Bahar E.M., Erten, S., ve Aktaş M. (2024). An Experimental Study Towards Decreasing the Energy Efficiency Index Value in Industrial Refrigerators. Gazi University Journal of Science Part C: Desıgn and Technologcy. 9(3): 432-445.
• [30] Riffat, S.B., Cüce, E. (2015). Aerogel-Assisted Support Pillars for Thermal Performance Enhancement of Vacuum Glazing: A CFD Research for a Commercial Product. Arabian Journal for Science and Engineering, 40(8). 10.1007/s13369-015-1727-5
• [31] Aydın, O. (2006). Conjugate heat transfer analysis of double pane windows. Building and Environment, Volume 41, Issue 2, 2006, Pages 109-116, ISSN 0360-1323.https://doi.org/10.1016/j.buildenv.2005.01.011
• [32] Cuce, E, Riffat, S. B. (2015). A state-of-the-art review on innovative glazing technologies, Renewable and Sustainable Energy Reviews, Volume 41, Pages 695-714, ISSN 1364-0321. https://doi.org/10.1016/j.rser.2014.08.084.
• [33] Cuce, E., Cuce, P., M. (2016). Vacuum glazing for highly insulating windows: Recent developments and future prospects. Renewable and Sustainable Energy Reviews, Volume 54, Pages 1345-1357, ISSN 1364-0321, https://doi.org/10.1016/j.rser.2015.10.134.
• [34] Alvur, E., Cuce P. M., Cuce, E., Bouabidi, A., Soudagar, M., E., M.（2024).Thermal Bridging in Windows: A Critical Review on Mitigation Strategies for Enhanced Building Energy Efficiency. Sustainable and Clean Buildings. Volume 1, Issue 1,(1):176-93. https://ojs.wiserpub.com/index.php/scb/article/view/6066.