Effect of condenser fan type and speed on the thermodynamic performance of a domestic freezer
Journal of Mechanical Science and Technology, cilt.40, sa.8, ss.6229-6245, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 40 Sayı: 8
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s12206-026-0753-4
- Dergi Adı: Journal of Mechanical Science and Technology
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Sayfa Sayıları: ss.6229-6245
- Anahtar Kelimeler: Condenser fan, Exergy destruction, Fan speed, Refrigerant amount, Second law
- Eskişehir Osmangazi Üniversitesi Adresli: Evet
Özet
This study investigates the performance of a household freezer operating on a single-stage vapor compression refrigeration cycle through first- and second-law thermodynamic analyses. Experimental tests were conducted at the Arçelik Refrigerator Plant laboratory in compliance with IEC 62552:2015 standards, using a 420-liter freezer charged with R600a refrigerant. Two condenser fan configurations, axial and box, were evaluated at three rotational speeds (800, 1200, and 1600 rpm) under ambient temperatures of 16 °C and 32 °C to simulate different climatic conditions. Additionally, refrigerant charges of 40, 44, and 48 grams were tested to determine the optimal combination for each fan type, speed, and temperature condition. Results demonstrated that the best overall performance and efficiency were achieved with a 48 g of R600a charge and an axial condenser fan. Exergy analysis showed that 65–72 % of the total system exergy destruction occurred in the evaporator, followed by the compressor as the second major source. Variance analysis further revealed that at an ambient temperature of 16 °C, the fan type had the greatest influence on the coefficient of performance (COP) and second-law efficiency, whereas at 32 °C, the refrigerant charge became the most dominant parameter.