Abstract
In this work, the results obtained in different tests performed on a Stirling cryocooler are shows, as well as a comparative analysis of these results with different load pressures. The prototype is a single-acting Stirling engine with a piston and displacer, which is used to liquefy air with helium as the working fluid; this is an integral Stirling (β-type). A three-phase asynchronous electric motor drives the Stirling engine and cooling, in the hot focus, is performed with a pressurized water circuit. In the cold focus are reached very low temperatures, around 75 K (-198 °C). The study has been developed at different load pressures of the working fluid and it shows a comparative analysis about the most important work parameters evolution. The parameters studied are the following: cooling water inlet and outlet temperatures, cold and hot focus temperatures, voltage and intensity consumed by the electric motor that drives the Stirling engine and quantity of liquid air obtained. The results show that it is very likely to use this configuration in industrial processes when they need cold and heat simultaneously.
Highlights
Stirling engines can be classified into three main groups (α-type, β-type and γ-type), depending on the position of the piston and the displacer [1]
Different parameters are displayed in this box: cooling water inlet and outlet temperatures and flows, hot and cold focus temperatures, ambient temperature, voltage and intensity consumed by the electric motor and speed of the electric motor
This paper shows the results obtained after the different tests carried out at the Stirling cryocooler
Summary
Stirling engines can be classified into three main groups (α-type, β-type and γ-type), depending on the position of the piston and the displacer [1]. The Stirling cryocooler does not use valves to control the flow of the working fluid, it has a regenerative heat exchanger, the compression is done mechanically and it is a single-acting machine equipped with a piston and displacer. This type of motors is called an integral Stirling engine, according to the Walker classification that can be seen in Fig. 1 [3,8]. The optimum storage temperature in order to preserve these samples is 193 K (-80 oC) and the Stirling cryocooler could be used for this purpose This Biobank will be useful for numerous biomedical research projects that contribute to the design of a treatment or effective vaccine against the coronavirus
Sign-in/Register to view highlights & summary 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.
