کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7059862 1458111 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of carbon dioxide condensation in chevron plate exchangers; heat transfer analysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Study of carbon dioxide condensation in chevron plate exchangers; heat transfer analysis
چکیده انگلیسی
The experimental investigation of carbon dioxide condensation in brazed plate heat exchangers is the main objective of this study. The current level of concern for the environment is at an all time high, therefore, it is important to look into methods and resources that lead to a cleaner and healthier future for the planet. This study details one such effort to reach this goal, focusing on condensation of carbon dioxide as a natural refrigerant in refrigeration systems. Three brazed plate heat exchangers with different geometry, each consisting of three channels, are tested. This paper focuses on the two-phase analysis, where carbon dioxide was the working fluid, flowing through the middle channel, and dynalene brine, the cooling fluid, flowed through the side channels of each geometry. Condensation of carbon dioxide occurred at saturation temperatures ranging from −17.8 °C to −34.4 °C and heat fluxes spanning 2.5-15.7 kW/m2. An in-depth dimensional analysis was completed on the two-phase data yielding heat transfer correlations. Relationships of the two-phase heat transfer characteristics are presented, the data are compared with related studies, and conclusions are made from the two-phase data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 5–6, February 2011, Pages 1121-1131
نویسندگان
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