Influence of operational modes on the system performance and exergy efficiency of carbon fiber film heater-assisted heat pump drying systems
Yazarlar (3)
Doç. Dr. Ahmet YÜKSEL Yalova Üniversitesi, Türkiye
Öğr. Gör. Ümit İŞKAN Yalova Üniversitesi, Türkiye
Doç. Dr. Cüneyt TUNÇKAL Yalova Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | THERMAL SCIENCE AND ENGINEERING PROGRESS (Q1) | ||
| Dergi ISSN | 2451-9049 Dergi Bilgileri (2025) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2025 |
| Cilt / Sayı / Sayfa | 61 / 0 / 1–11 | DOI | 10.1016/j.tsep.2025.103591 |
| Makale Linki | https://doi.org/10.1016/j.tsep.2025.103591 | ||
| UAK Araştırma Alanları |
Tarımsal Enerji Sistemleri
Tarımsal Otomasyon
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| Özet |
| This study investigated the drying performance of apple slices using a closed-circuit heat pump drying (HPD) system enhanced by a carbon fiber film heater (CFFH) integrated under the trays. The motivation behind this research was to improve the coefficient of performance (COP) and drying uniformity of the HPD system through innovative heating strategies. It was hypothesized that different operational strategies of the CFFH would significantly affect the system's performance and exergy efficiency. To test this, three different CFFH operating strategies were implemented: continuous operation with the HPD system (Case-I), simultaneous intermittent operation with the external condenser (Case-II), and simultaneous intermittent operation with the external evaporator (Case-III). The experimental results revealed that Case-III achieved the highest coefficient of performance for the heat pump (COPHP) at 4.44 and the highest coefficient of performance for the system (COPSYS) values at 3.34, while Case-I demonstrated the lowest values at 4.08 for COPHP and 2.98 for COPSYS. Compared to the HPD system without CFFH, Case-I yielded higher moisture extraction rate (MER) and specific energy consumption (SEC) values by 0.005 kg/h and 0.935 kg/kWh, respectively, while specific moisture extraction rate (SMER) values were 0.007 kg/kWh lower. Furthermore, the highest exergy efficiency of 90.7 % was observed in the capillary tube during Case-II, whereas the compressor in Case-I exhibited the lowest efficiency at 60.6 %. In conclusion, integrating CFFHs with the HPD system not only facilitated more uniform drying of the apple slices but also enhanced COPHP. |
| Anahtar Kelimeler |
| Carbon fiber film heater | Coefficient of performance | Drying performance | Exergy efficiency | Heat pump drying |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 1 |