کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7915622 | 1511023 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A cryogen-free Vuilleumier type pulse tube cryocooler operating below 10â¯K
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Vuilleumier (VM) type pulse tube cryocooler (PTC) utilizes the thermal compressor to drive the low temperature stage PTC. This paper presents the latest experimental results of a cryogen-free VM type PTC that operates in the temperature range below 10â¯K. Stirling type pre-coolers instead of liquid nitrogen provide the cooling power for the thermal compressor. Compared with previous configuration, the thermal compressor was improved with a higher output pressure ratio, and lead and HoCu2 spheres were packed within the regenerator for the low temperature stage PTC for a better match with targeted cold end temperature. A lowest no-load temperature of 7.58â¯K was obtained with a pressure ratio of 1.23, a working frequency of 3â¯Hz and an average pressure of 1.63â¯MPa. The experimental results show good consistency in terms of lowest temperature with the simulation under the same working condition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cryogenics - Volume 90, March 2018, Pages 1-6
Journal: Cryogenics - Volume 90, March 2018, Pages 1-6
نویسندگان
Yanan Wang, Xiaotao Wang, Wei Dai, Ercang Luo,