This article presents a device for the storage and gasification of cryogenic working fluid,which is named a cryogenic fuelling tank.A cryogenic fuel tank can serve both as a fuel vessel and a pressure accumulator due ...This article presents a device for the storage and gasification of cryogenic working fluid,which is named a cryogenic fuelling tank.A cryogenic fuel tank can serve both as a fuel vessel and a pressure accumulator due to the regasification process that takes place inside.Application of this tank is slowed by the lack of theoretical and experimental research on its working process.This article deals with an investigation of the working process of the energy plant based on a cryogenic fuel tank coupled with a rotor-vane expander.Developed mathematical models include evaporation and condensation processes within the tank,heat exchange between gas chambers and between the tank and environment,and changes in energy due to incoming and leaving mass.Mechanical work used to determine the efficiency of a power plant is generated by a steam expander.Research shows that it is possible to achieve specific work outputs up to 110-160 kJ/kg with relative deviation of power and specific work determination equal to 1.4% and 1.9%correspondingly.展开更多
In this paper,a weak fiber Bragg grating(WFBG)based sensing system applied to the cryogenic static test of launch vehicle oxygen tanks has been developed and the results of an evaluation are reported.A customized sens...In this paper,a weak fiber Bragg grating(WFBG)based sensing system applied to the cryogenic static test of launch vehicle oxygen tanks has been developed and the results of an evaluation are reported.A customized sensor encapsulation and installation method allow for precise strain measurement at cryogenic temperatures.The reflection peaks of series-connected WFBGs with low optical loss are obtained,ensuring high system reliability in harsh environments.The experimental results show that the maximum full-scale error is less than 0.81%full-scale error.The temperature is as low as−193℃ during the test.This study also demonstrates a practical method in which WFBG can be used to obtain critical parameters for structural monitoring in a cryogenic environment.展开更多
基金using the equipment of the Research Educational Center“REC-Vibration Strengthand Reliability of Aerospace Products”with financial support from the Ministry of Science and Higher Education of the Russian Federation(Project No FSSS-2024-0017).
文摘This article presents a device for the storage and gasification of cryogenic working fluid,which is named a cryogenic fuelling tank.A cryogenic fuel tank can serve both as a fuel vessel and a pressure accumulator due to the regasification process that takes place inside.Application of this tank is slowed by the lack of theoretical and experimental research on its working process.This article deals with an investigation of the working process of the energy plant based on a cryogenic fuel tank coupled with a rotor-vane expander.Developed mathematical models include evaporation and condensation processes within the tank,heat exchange between gas chambers and between the tank and environment,and changes in energy due to incoming and leaving mass.Mechanical work used to determine the efficiency of a power plant is generated by a steam expander.Research shows that it is possible to achieve specific work outputs up to 110-160 kJ/kg with relative deviation of power and specific work determination equal to 1.4% and 1.9%correspondingly.
文摘In this paper,a weak fiber Bragg grating(WFBG)based sensing system applied to the cryogenic static test of launch vehicle oxygen tanks has been developed and the results of an evaluation are reported.A customized sensor encapsulation and installation method allow for precise strain measurement at cryogenic temperatures.The reflection peaks of series-connected WFBGs with low optical loss are obtained,ensuring high system reliability in harsh environments.The experimental results show that the maximum full-scale error is less than 0.81%full-scale error.The temperature is as low as−193℃ during the test.This study also demonstrates a practical method in which WFBG can be used to obtain critical parameters for structural monitoring in a cryogenic environment.
