15 K liquid hydrogen thermal Energy Storage Unit for future ESA science missions

Cryogenic Engineering Conference 2015

材料科学;物理学

De Sousa, P. Borges^1 ; Martins, D.^2 ; Tomás, G.^1 ; Barreto, J.^1 ; Noite, J.^2 ; Linder, M.^3 ; Fruchart, D.^4 ; De Rango, P.^4 ; Haettel, R.^4 ; Catarino, I.^1 ; Bonfait, G.^1

LIBPhys, Physics Department, Faculty of Sciences and Technology, Universidade Nova de Lisboa, Caparica

2829-516, Portugal^1

Active Space Technologies, Parque Industrial de Taveiro, Lote 12, Coimbra

3045-508, Portugal^2

European Space Agency, ESTEC, E0053A, AG Noordwijk

2200, Netherlands^3

CNRS, Institut Néel et CRETA, Grenoble

F-38000, France^4

关键词: Closed systems;    Compact unit;    Development model;    Expansion volumes;    Ground testing;    Liquid hydrogens;    New satellites;    Science missions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/101/1/012191/pdf
DOI  :  10.1088/1757-899X/101/1/012191

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A thermal Energy Storage Unit (ESU) using liquid hydrogen has been developed as a solution for absorbing the heat peaks released by the recycling phase of a 300 mK cooler that is a part of the cryogenic chain of one of ESA's new satellites for science missions. This device is capable of storing 400 J of thermal energy between 15 and 16 K by taking advantage of the liquid-to-vapor latent heat of hydrogen in a closed system. This paper describes some results obtained with the development model of the ESU under different configurations and using two types of hydrogen storage: a large expansion volume for ground testing and a much more compact unit, suitable for space applications and that can comply with ESA's mass budget.