Analysis of compact heat exchangers as an intercooler in pemfc systems
Författare
Summary, in English
In Proton Exchange Membrane Fuel Cell (PEMFC) systems, an intercooler contributes to proper thermal management of the reactant air into the cathode. However, the structure/performance of it is not clear yet. In this paper, two case studies concerning an intercooler in a 100 kW PEMFC system are carried out. Plate-fin and tube-fin heat exchangers are analyzed as the intercooler, in terms of volume, pressure drop and weight, The ε-NTU method is used. As general characteristics of the intercooler, the volume is increased with system operating pressure, while the pressure drop is decreased due to the volume expansion. The plate-fin intercooler contributes to the weight reduction of the system because aluminum is used. However, at the high operating pressure, space consumption is large. The tube-fin intercooler contributes to the volume reduction because the coolant is a liquid. However, the usage of stainless steel contributes to weight increase. The tube-fin intercooler in aluminum may contribute to space and weight reduction. However, a liquid coolant, which is proper for the PEMFC stack cooling without corrosion of aluminum, is needed. Copyright © 2005 by ASME.
Avdelning/ar
Publiceringsår
2005
Språk
Engelska
Sidor
797-803
Publikation/Tidskrift/Serie
Proceedings of the ASME Summer Heat Transfer Conference
Volym
2
Dokumenttyp
Konferensbidrag
Förlag
American Society Of Mechanical Engineers (ASME)
Ämne
- Energy Engineering
Nyckelord
- Liquid coolant
- Proton Exchange Membrane Fuel Cell (PEMFC)
- Tube-fin heat exchangers
Conference name
ASME Summer Heat Transfer Conference, 2005
Conference date
2005-07-17 - 2005-07-22
Conference place
San Francisco, California, United States
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 0791847314