کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11015764 | 1781702 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development and performance test of a miniature movable mixed-refrigerant liquid nitrogen generator
ترجمه فارسی عنوان
تست توسعه و عملکرد یک ژنراتور نیتروژن مایع متحرک متحرک مبرد مبرد
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
نیتروژن مایع، مخلوط مبرد آزمایشی نمونه اولیه، جداسازی هوا،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
In order to cover long-term but small quantity liquid nitrogen requirements of laboratory or field users, a miniature movable mixed-refrigerant liquid nitrogen generator (MRLN) was developed and tested here, based on a precooled mixed-refrigerant J-T (MRJT) refrigerator. With the full air-cooled, skid-mounted structure, this MRLN was built utilizing off-the-shelf refrigeration components like commercial single-stage oil-lubricated compressors to reduce construction cost greatly. Bottled pure N2, pressure swing adsorption (PSA) unit and mini cryogenic rectification column could be employed to supply N2 in different operation modes respectively. In pure N2 mode, N2 was directly liquefied by the MRJT refrigerator. With feed N2 at 0.8â¯MPa, the specific power consumption (SPC) was 1.79â¯kWhâ¯Lâ1, and figure of merit (FOM) was 6.27%. The estimated SPC in PSA mode was 2.68â¯kWhâ¯Lâ1. For column mode, the SPC was 4.59â¯kWhâ¯Lâ1, with FOM of 3.38%. A closed N2 cycle could convey cooling capacity between flammable refrigerant and air. This MRLN could be a convenient and low-costing choice for some liquid nitrogen users.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cryogenics - Volume 96, December 2018, Pages 1-9
Journal: Cryogenics - Volume 96, December 2018, Pages 1-9
نویسندگان
H.C. Wang, H. Guo, Y.X. Zhao, G.F. Chen, M.Q. Gong,