2026-09-19T19:06:45Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/404822022-01-13T07:54:36Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
John G. Brisson, II.
Schor, Alisha R. (Alisha Robin)
Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2008-02-27T22:30:26Z
2008-02-27T22:30:26Z
2007
http://hdl.handle.net/1721.1/40482
191801992
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.
"June 2007."
Includes bibliographical references (p. 41).
A first order model for the behavior of a linear orifice pulse tube refrigerator (OPTR) was developed as a design tool for construction of actual OPTRs. The model predicts cooling power as well as the pressure/volume relationships for various segments of the refrigerator with minimal computational requirements. The first portion of this document describes the development of this model and its simplifications relative to higher-order numerical models. The second portion of this document details a physical implementation of the pulse tube and compares its performance to the predicted performance of the model. It was found that the model accurately predicted qualitative behavior and trends of the orifice pulse tube refrigerator, but that the predicted temperature difference was approximately five times higher than the measured temperature difference. It is believed that the model can be improved with provisions for flow choking as well as warnings for behavior outside of the accepted operating conditions.
by Alisha R. Schor.
S.B.
41 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering.
Design of a single orifice pulse tube refrigerator through the development of a first-order model
Design of a single OPTR through the development of a first-order model
Thesis
application/pdf
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