Abstract
In this paper we report on the development of a prototype of a miniature free warm expander pulse tube (FWEPT), a novel configuration of the orifice pulse tube cooler with the orifice and the reservoir replaced by a secondary piston. It is shown that the motion of the secondary piston can be driven with the appropriate amplitude and phase by the pneumatic force of the pressure cycle. Investigation of the loss mechanisms has shown that the dominant contributions to the heat leak are heat conduction through the regenerator mesh and regenerator ineffectiveness loss, and are ultimately related to the fact that the mass flow rate in pulse tube coolers is large due to the relatively large void volume.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
