دانشگاه سمنان

 آمار

تعداد نشریات22
تعداد شماره‌ها712
تعداد مقالات10,258
تعداد مشاهده مقاله72,013,215
تعداد دریافت فایل اصل مقاله63,762,195
Ahmad, Saif Nawaz, Kumar, Nitin, Kumar, Rajnish, Ahmad, Adil Nawaz. (1405). Advances in Subcooling Techniques for Transcritical CO₂ Refrigeration Systems: A Comprehensive Review. هنرهای کاربردی, (), -. doi: 10.22075/jhmtr.2026.39481.1865
Saif Nawaz Ahmad; Nitin Kumar; Rajnish Kumar; Adil Nawaz Ahmad. "Advances in Subcooling Techniques for Transcritical CO₂ Refrigeration Systems: A Comprehensive Review". هنرهای کاربردی, , , 1405, -. doi: 10.22075/jhmtr.2026.39481.1865
Ahmad, Saif Nawaz, Kumar, Nitin, Kumar, Rajnish, Ahmad, Adil Nawaz. (1405). 'Advances in Subcooling Techniques for Transcritical CO₂ Refrigeration Systems: A Comprehensive Review', هنرهای کاربردی, (), pp. -. doi: 10.22075/jhmtr.2026.39481.1865
Ahmad, Saif Nawaz, Kumar, Nitin, Kumar, Rajnish, Ahmad, Adil Nawaz. Advances in Subcooling Techniques for Transcritical CO₂ Refrigeration Systems: A Comprehensive Review. هنرهای کاربردی, 1405; (): -. doi: 10.22075/jhmtr.2026.39481.1865

Advances in Subcooling Techniques for Transcritical CO₂ Refrigeration Systems: A Comprehensive Review

Journal of Heat and Mass Transfer Research
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 27 فروردین 1405
نوع مقاله: Review Article
شناسه دیجیتال (DOI): 10.22075/jhmtr.2026.39481.1865
نویسندگان
Saif Nawaz Ahmad* 1؛ Nitin Kumar2؛ Rajnish Kumar3؛ Adil Nawaz Ahmad4
1Senior Research Engineer, R & D Cell, Cool-Max Innovations, Bhiwadi, rasasthan, India
2Assistant Professor, Department of Mechanical Engineering, RKGIT Ghaziabad, Uttar Pradesh, India
3Assistant Professor, NCE Chandi, Bihar, India
4Aliah University Kolkata, West Bengal, India
تاریخ دریافت: 01 آبان 1404،  تاریخ بازنگری: 16 بهمن 1404،  تاریخ پذیرش: 27 فروردین 1405 
چکیده
Transcritical CO₂ refrigeration systems are increasingly adopted as low-GWP alternatives, however their performance deteriorates due to high gas cooler pressures and large throttling losses. Subcooling the refrigerant before expansion is a key thermodynamic solution to mitigate these losses, yet a comprehensive and updated synthesis that directly compares the performance, and applicability of diverse subcooling techniques within a unified framework is lacking. This review addresses that gap by providing a structured, critical analysis of both internal and external subcooling methods-including internal heat exchangers (IHX), ejector and expander-assisted systems, and mechanical and thermoelectric subcoolers. The consolidated findings indicate that for high-ambient conditions, mechanical subcooling consistently emerges as the most effective approach, offering substantial COP improvements (20-40%) and in case of DMS, significant discharge pressure reduction. This review further examines integration challenges, advanced control strategies, and emerging hybrid and renewable-assisted systems, offering valuable insights for researchers and designers aiming to enhance the sustainability and performance of next-generation CO₂ refrigeration technologies.
کلیدواژه‌ها
subcooling؛ transcritical co2؛ integrated mechanical؛ dedicated mechanical؛ thermoelectric
آمار
تعداد مشاهده مقاله: 156


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب