Renewable Energy Sources (RES) exploitation for electric energy and hydrogen production has been identified as one of the leading ways towards a future sustainable energy system. Hydrogen can be stored and transported in gaseous (GH2) or liquid form (LH2). When large hydrogen storage is required, liquefaction can be convenient with respect to compression, because of its higher storage density. LH2 can also be used as a coolant for superconducting lines, acting at the same time as energy vector and cryogen. In particular, in this paper we focus on the MgB2 material mainly due to economic considerations and working temperature match with LH2. A system for large scale RES exploitation allowing flexible and controlled delivery of electric energy and LH2 is presented. For the thermo-hydraulic design, a method is proposed which resorts to compressible fluid equations put in a convenient simplified form. A case application with 20 km distance between cooling stations is considered, and the need of taking into account LH2 compressibility for pipeline design is shown.

Long distance RES power transmission using hydrogen-cooled MgB2 superconducting line

TREVISANI, LUCA;FABBRI, MASSIMO;NEGRINI, FRANCESCO
2007

Abstract

Renewable Energy Sources (RES) exploitation for electric energy and hydrogen production has been identified as one of the leading ways towards a future sustainable energy system. Hydrogen can be stored and transported in gaseous (GH2) or liquid form (LH2). When large hydrogen storage is required, liquefaction can be convenient with respect to compression, because of its higher storage density. LH2 can also be used as a coolant for superconducting lines, acting at the same time as energy vector and cryogen. In particular, in this paper we focus on the MgB2 material mainly due to economic considerations and working temperature match with LH2. A system for large scale RES exploitation allowing flexible and controlled delivery of electric energy and LH2 is presented. For the thermo-hydraulic design, a method is proposed which resorts to compressible fluid equations put in a convenient simplified form. A case application with 20 km distance between cooling stations is considered, and the need of taking into account LH2 compressibility for pipeline design is shown.
2007
L. Trevisani; M. Fabbri; F. Negrini
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/33224
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 22
  • ???jsp.display-item.citation.isi??? 19
social impact