Pregled bibliografske jedinice broj: 524007
Maintaining desired level of relative humidity throughout a fuel cell with spatially variable heat removal rates
Maintaining desired level of relative humidity throughout a fuel cell with spatially variable heat removal rates // International journal of hydrogen energy, 36 (2011), 20; 13105-13113 doi:10.1016/j.ijhydene.2011.07.078 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 524007 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Maintaining desired level of relative humidity throughout a fuel cell with spatially variable heat removal rates
Autori
Tolj, Ivan ; Bezmalinović, Dario ; Barbir, Frano
Izvornik
International journal of hydrogen energy (0360-3199) 36
(2011), 20;
13105-13113
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
PEM fuel cell; Water management; Relative humidity; Segmented model; Humid air Mollier diagram
Sažetak
A concept of using the product water to internally humidify the air stream in a PEM fuel cell without external humidification is investigated by a simple, pseudo 2-D model along a single channel. This model takes into account the mass and energy balance, water and heat generation rates, heat removal, and water transport through the membrane. The model and thus the concept were confirmed experimentally using a 5-segment fuel cell. The temperature of each segment could be individually controlled, and the temperature and humidity of air could be measured between each segment. A temperature profile has been established, by applying spatially variable heat removal rates along the cathode channel, that results in relative humidity being close to 100% throughout the cell without any external humidification. The concept may be applied to a fuel cell stack resulting in simplification of the suporting system by avoiding external humidification.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
023-0231751-1753 - Pasivne gorivne ćelije s opskrbom kisikom iz zraka putem prirodne konvekcije (Barbir, Frano, MZOS ) ( CroRIS)
Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
