The effect of using two intercoolers on the thermodynamic performance of a new trans-critical CO2 refrigeration cycle

سال انتشار: 1399
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 286

فایل این مقاله در 10 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

ELCM03_021

تاریخ نمایه سازی: 18 آذر 1399

چکیده مقاله:

In this study the effect of using two intercoolers on the thermodynamic performance of a new modified trans-critical CO2 refrigeration cycle is investigated. The impacts of important operational parameters such as evaporator and gas cooler temperatures and gas-cooler pressure, on cycle performance have been investigated. Results are validated against those available in the other references. Comparisons of the results show that there is a good agreement between them. Obtained results showed that modified cycle improved the maximum coefficient of performance (COP max), about 20.58% compared to the internal heat exchanger two-stage trans-critical refrigeration cycles and 23.2% compared to conventional multi-inter-cooling two-stage TRCC cycle with ejector expansion device. Also total exergy destruction rate of the new modified cycle is between its rates of two conventional models.

کلیدواژه ها:

نویسندگان

Mahmood Majidi

Department of energy engineering, Faculty of natural resources and environment, Science and research branch, Islamic Azad University, Tehran, Iran

Ali Gheibi

Department of mechanical engineering, University of Kashan, Kashan, Iran