Conceptual design of a cryocooler and investigation of the effect of design parameters on cryocooler performance
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 792
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شناسه ملی سند علمی:
DESCONF02_022
تاریخ نمایه سازی: 9 دی 1398
چکیده مقاله:
Pulse tube cryocooler has low vibration and high reliability because of the lack of displacer in the cold area. This advantages cause development of this cryocoolers. In some applications such as MRI systems which need cryocoolers for cooling magnet, using them will improve the imaging quality.In this article, the steps of designing a pulse tube cryocooler which is able to be installed in MRI systems will be introduced. As conceptual design is a vital section of any design project, this part has been totally studied; Necessary data has been gathered and developed in order to have best function in the pulse tube system. Preliminary design with help of two analyses (Phasor and Isotherm analysis) is introduced to designers and important parameters are obtained. Then investigation the effect of some design parameters like valve timing, reservoir volume and pressure ratio by using isothermal analysis has been done on cryocooler performance.
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نویسندگان
Morteza Hamzeh
Department of Mechanical Engineering, K, N. Toosi University of Technology, Tehran, Iran
Amirreza Kachabi
Department of Mechanical Engineering, Nooshirvani University of Technology, Babol, Iran
Mohammad Andayesh
Department of Mechanical Engineering, K, N. Toosi University of Technology, Tehran, Iran
Mohammad Heidar Khamsehei Fadaei
Department of Mechanical Engineering, Islamic Azad University, Saveh, Iran