Abstract
The nondimensional rate of refrigeration 〈Ḣ〉 of pulse tubes is shown to have a maximum attainable value of 1/4. The analysis is based on a linearized model in which the regenerator is thermally perfect and has negligible dead volume. The temporal variations are taken to be sinusoidal. At maximum 〈Ḣ〉, the coefficient of performance (COP) equals one-half the temperature ratio Tc/Th across the regenerator. In general, COP is a fraction between 0 and 1 of Tc/Th. The difference between the actual power provided at the driver side and the ideal power corresponding to COP=Tc/Th is dissipated in the regenerator. The resulting heat is transported to the warm end of the regenerator, where it is removed as part of the total heat flow rate.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.