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Title: Validation of an externally oil-cooled 1 kWel HT-PEMFC stack operating at various experimental conditions
Authors: Bujlo, P 
Pasupathi, S 
Ulleberg, O 
Scholta, J 
Nomnqa, MV 
Rabiu, Ademola M 
Pollet, BG 
Keywords: HT-PEMFC;fuel cell stack;externally cooled;performance;CO tolerance
Issue Date: 2013
Source: Bujlo, P., Pasupathi, S., Ulleberg, Ø., Scholta, J., Nomnqa, M. V., Rabiu, A., & Pollet, B. G. (2013). Validation of an externally oil-cooled 1 kW el HT-PEMFC stack operating at various experimental conditions. international journal of hydrogen energy, 38(23), 9847-9855.
Abstract: The performance of 1 kWel 48-cell HT-PEMFC at various experimental conditions is presented, particularly at several CO concentrations (up to 1.0%). Polarization curves measured at various anode (1.0–2.5) and cathode (1.6–4.0) stoichiometries; stack operating temperatures (120–160 °C) and gas pressures (up to 0.5 barg) are reported and analysed. The minimum gas stoichiometries of 1.25 and 2.0 were determined for the anode and cathode, respectively. The highest stack power density of 225 mW cm−2 was measured at 160 °C and 0.4 A cm−2. Operation at CO concentrations up to 1% was achieved, although a loss of performance of about 4% was observed for low CO concentrations. The operating temperature enhanced fuel cell performance and tolerance to CO, even when supplied with higher CO concentration in the anode feed gas.
Appears in Collections:Eng - Journal articles (DHET subsidised)

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