5 May 2017 Ceramic 3D printed Joule Thomson mini cryocooler intended for HOT IR detectors
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Abstract
Joule Thomson (JT) Cryocooler is a well-known technology which is widely used in research and industry. The cooling effect is achieved by isenthalpic expansion of the cooling gas in an orifice. A JT cooler has two basic components: a counter flow heat exchanger and an orifice. Due to the fact that the cooler has no moving parts and contains relatively simple components it is a great candidate for miniaturization, and realization with the new additive manufacturing technologies. In the current work we discuss the implementation of 3D ceramic printing as a possible fabrication technology for a JT cooler intended for cooling IR detectors operated at temperature of about 150K. In this paper we present a comprehensive analysis including coolant considerations, heat transfer calculations and realization of the cooler.
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A. Shapiro, A. Shapiro, L. Fraiman, L. Fraiman, A. Parahovnik, A. Parahovnik, } "Ceramic 3D printed Joule Thomson mini cryocooler intended for HOT IR detectors", Proc. SPIE 10180, Tri-Technology Device Refrigeration (TTDR) II, 1018006 (5 May 2017); doi: 10.1117/12.2266313; https://doi.org/10.1117/12.2266313
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