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Title:Hydrogen production using a thermochemical cycle
Authors:ID Avsec, Jurij (Author)
ID Novosel, Urška (Author)
ID Strušnik, Dušan (Author)
Files:.pdf Hydrogen_production_Avsec_2022.pdf (685,49 KB)
MD5: 8945D27484FFE184957843AABE502991
 
URL https://www.fe.um.si/e-jet/45-2022/3737-september-2022.html
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FE - Faculty of Energy Technology
Abstract:Sustainable methods of clean fuel production are needed throughout the world due to depleting oil reserves and the need to reduce carbon dioxide emissions. The technology based on fuel cells for electricity production or the transport sector has already been developed. However, a key missing element is a large-scale method of hydrogen production. The copper-chlorine (CuCI) combined thermochemical cycle is a promising thermochemical cycle that can produce large amounts of cheap hydrogen. A particularly promising part of this process is its use in combination with nuclear or thermal power plants. This paper focuses on a CuCl cycle and describes the models used to calculate thermodynamic and transport properties. This paper discusses the mathematical model for computing the thermodynamic properties for pure HCl and CuCl2. The mathematical model developed for the solid phase takes into account vibrations of atoms in molecules and intermolecular forces. This mathematical model can be used for the calculation of the thermodynamic properties of polyatomic crystals on the basis of the Einstein and Debye equations. The authors of this paper developed the model in the low temperature and high temperature region. All the analytical data have been compared with some experimental results and show a relatively good match. For the solid phase, the authors developed a model to calculate thermal conductivity based on electron and phonon contributions.
Keywords:thermodynamics, energy, hydrogen production, solid phase, fluid phase
Publication status:Published
Publication version:Version of Record
Publication date:01.09.2022
Publisher:Fakulteta za energetiko Univerze v Mariboru
Year of publishing:2022
Number of pages:Str. 11-20
Numbering:Letn. 15, Št. 2
PID:20.500.12556/DKUM-86252 New window
UDC:536.7
ISSN on article:1855-5748
COBISS.SI-ID:126767363 New window
Publication date in DKUM:30.10.2023
Views:375
Downloads:6
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
AVSEC, Jurij, NOVOSEL, Urška and STRUŠNIK, Dušan, 2022, Hydrogen production using a thermochemical cycle. Journal of energy technology [online]. 2022. Vol. 15, no. Št. 2, p. 11–20. [Accessed 14 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=86252
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Record is a part of a journal

Title:Journal of energy technology
Publisher:Fakulteta za energetiko
ISSN:1855-5748
COBISS.SI-ID:243311360 New window

Secondary language

Language:Slovenian
Title:Proizvodnja vodika s termokemičnim procesom
Abstract:Zaradi izčrpavanja zalog nafte in potrebe po zmanjšanju emisij ogljikovega dioksida so trajnostne metode proizvodnje čistega goriva potrebne v vseh državah sveta. Tehnologija na osnovi gorivnih celic je že razvita, vendar pa je ključni manjkajoči element obsežna proizvodnja vodika. Kombinirani termokemični cikel baker-klor (CuCl) predstavlja obetaven termokemični cikel za proizvodnjo poceni vodika v velikih količinah, kar je proces, ki je še posebej zanimiv v kombinaciji z jedrskimi elektrarnami ali termoelektrarnami. Ta članek se osredotoča na cikel baker-klor (CuCl) in opisuje modele, kako izračunati termodinamične in transportne lastnosti, pri čemer obravnava matematični model za izračun termodinamičnih lastnosti za čisti HCl in CuCl2. Razvit matematični model za trdno fazo upošteva vibracije atomov v molekulah in medmolekulske sile. Ta matematični model, ki se lahko uporablja za izračun termodinamičnih lastnosti poliatomskih kristalov na podlagi Einsteinovih in Debyejevih enačb, smo razvili v nizkotemperaturnem in visokotemperaturnem območju. Analitične podatke smo primerjali z nekaterimi eksperimentalnimi rezultati in kažejo dobro ujemanje. Za trdno fazo smo razvili model za izračun toplotne prevodnosti na podlagi prispevkov elektronov in fononov.
Keywords:termodinamika, energija, proizvodnja vodika, trdna faza, tekoča faza


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This document is a part of these collections:
  1. Journal of energy technology

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