کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
659309 1644965 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical simulations of transport processes in a pulse tube cryocooler: Effects of taper angle
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Numerical simulations of transport processes in a pulse tube cryocooler: Effects of taper angle
چکیده انگلیسی
A numerical model is developed for the prediction of the performance and transport characteristics in an orifice pulse tube refrigerator (OPTR). The OPTR is studied for a two specific geometries. In the first geometry (A), only the taper angle of the pulse tube is changed. In the second geometry (B), the taper angle of the pulse tube is varied along with the diameter of the hot heat-exchanger. The taper angle of the pulse tube is shown to have significant effects on the secondary streaming patterns observed in the pulse tube. Tapering the pulse tube improved the performance of the OPTR only for Geometry-B. In this case, suppression of velocity streaming is achieved in the warm end of the pulse tube.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 21–22, October 2011, Pages 4611-4620
نویسندگان
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