Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Investigation of Water and Temperature Distributions for Open-Cathode Polymer Electrolyte Fuel Cell Stack With Edge Cooling J. Fuel Cell Sci. Technol. 2013;10(6):061003-061003-9. doi:10.1115/1.4025054 Figure Legend: Computational domain for open-cathode PEMFC stack (a) conventional design; (b) with additional air coolant plates and with edge cooling by (c) rectangular fin; (d) triangle fin 1 and (e) triangle fin 2. Note that the details for the conventional open cathode stack and with additional air coolant plates can be found in an earlier paper [2]; the detailed description of the design with rectangular fin is available in previous work [4].

Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Investigation of Water and Temperature Distributions for Open-Cathode Polymer Electrolyte Fuel Cell Stack With Edge Cooling J. Fuel Cell Sci. Technol. 2013;10(6):061003-061003-9. doi:10.1115/1.4025054 Figure Legend: SCCs for the open-cathode fuel cell stack for the conventional design (▼), the design with additional air-coolant channels (▶), with rectangular edge cooling (▲), with triangular fin 1 (●), and with triangular fin 2 (▪); FCC for a fan power of 19.5 W (◀), and operating point (○)

Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Investigation of Water and Temperature Distributions for Open-Cathode Polymer Electrolyte Fuel Cell Stack With Edge Cooling J. Fuel Cell Sci. Technol. 2013;10(6):061003-061003-9. doi:10.1115/1.4025054 Figure Legend: Comparison of the average stack temperature (···) and polarization curves (–) for the conventional design (▼), the design with additional air-coolant channels (▶), the design with with rectangular-edge cooling (▲), with triangular fin 1 (●), and with triangular fin 2 (▪)

Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Investigation of Water and Temperature Distributions for Open-Cathode Polymer Electrolyte Fuel Cell Stack With Edge Cooling J. Fuel Cell Sci. Technol. 2013;10(6):061003-061003-9. doi:10.1115/1.4025054 Figure Legend: Comparison of the standard deviations of the stack (a) current density and (b) temperature for the conventional design (▼), the design with additional air-coolant channels (▶), the design with rectangular edge cooling (▲), the design with triangular fin 1 (●), and design with triangular fin 2 (▪)

Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Investigation of Water and Temperature Distributions for Open-Cathode Polymer Electrolyte Fuel Cell Stack With Edge Cooling J. Fuel Cell Sci. Technol. 2013;10(6):061003-061003-9. doi:10.1115/1.4025054 Figure Legend: Local temperature distribution at the cathode catalyst layer for (a) the conventional design, (b) the design with additional air-coolant channels, (c) rectangular fins, (d) triangular fin 1, and (e) triangular fin 2

Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Investigation of Water and Temperature Distributions for Open-Cathode Polymer Electrolyte Fuel Cell Stack With Edge Cooling J. Fuel Cell Sci. Technol. 2013;10(6):061003-061003-9. doi:10.1115/1.4025054 Figure Legend: Local distribution of water content per sulfonic group (λ) at the middle of the membrane for (a) the conventional design, (b) the design with additional air-coolant channels, (c) rectangular fins, (d) triangular fin 1, and (e) triangular fin 2

Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Investigation of Water and Temperature Distributions for Open-Cathode Polymer Electrolyte Fuel Cell Stack With Edge Cooling J. Fuel Cell Sci. Technol. 2013;10(6):061003-061003-9. doi:10.1115/1.4025054 Figure Legend: Local distribution of current density generated at the cathode catalyst layer for (a) conventional design, (b) design with additional air coolant channels, (c) rectangular fins, (d) triangular fin 1, and (e) with triangular fin 2

Date of download: 10/11/2017 Copyright © ASME. All rights reserved. From: Numerical Investigation of Water and Temperature Distributions for Open-Cathode Polymer Electrolyte Fuel Cell Stack With Edge Cooling J. Fuel Cell Sci. Technol. 2013;10(6):061003-061003-9. doi:10.1115/1.4025054 Figure Legend: Comparison of the performance of the stack in terms of (a) power per unit catalyst area; (b) power per unit weight; and (c) power per unit volume for the conventional design (▼), the design with additional air-coolant channels (▶), the design with rectangular edge cooling (▲), the design with triangular fin 1 (●), and the design with triangular fin 2 (▪)