Mathematical model of a plate fin heat exchanger operating under solid oxide fuel cell working conditions
PBN-AR
Instytucja
Wydział Mechaniczny Energetyki i Lotnictwa (Politechnika Warszawska)
Źródłowe zdarzenia ewaluacyjne
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Archives of Thermodynamics
ISSN
1231-0956
EISSN
2083-6023
Wydawca
The Committee on Thermodynamics and Combustion
DOI
Rok publikacji
2013
Numer zeszytu
4
Strony od-do
3-21
Numer tomu
34
Identyfikator DOI
Liczba arkuszy
0.9
Autorzy
(liczba autorów: 2)
Słowa kluczowe
pl
solid oxide fuel cells
en
solid oxide fuel cells, SOFC, micro-CHP
Streszczenia
Język
en
Treść
Heat exchangers of different types find application in power systems based on solid oxide fuel cells (SOFC). Compact plate fin heat exchangers are typically found to perfectly fit systems with power output under 5 kWel. Micro-combined heat and power (micro-CHP) units with solid oxide fuel cells can exhibit high electrical and overall efficiencies, exceeding 85%, respectively. These values can be achieved only when high thermal integration of a system is assured. Selection and sizing of heat exchangers play a crucial role and should be done with caution. Moreover, performance of heat exchangers under variable operating conditions can strongly influence efficiency of the complete system. For that reason, it becomes important to develop high fidelity mathematical models allowing evaluation of heat exchangers under modified operating conditions, in high temperature regimes. Prediction of pressure and temperatures drops at the exit of cold and hot sides are important for system-level studies. Paper presents dedicated mathematical model used for evaluation of a plate fin heat exchanger, operating as a part of micro-CHP unit with solid oxide fuel cells.
Inne
System-identifier
WUTe61c931443244b268c140555604c5be5
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