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2003 Course Fuel Cell Technology

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Total No. of Questions : 12] P1013 [Total No. of Pages : 3 [3664]-291 B.E. (Chem.) FUEL CELL TECHNOLOGY (409348) (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 5) Assume suitable data, if necessary. 6) All questions are compulsory. SECTION - I Q1) a) Describe the salient features of proton exchange membrane fuel cell. Draw a figure. [8] b) Draw a figure and explain the working principle of SOFC. [8] OR Q2) a) Explain the basic concepts of fuel cell. [7] b) What are the desired properties of materials used for the construction of various components of fuel cells? [9] Q3) At STP condition, Gibbs free energy for the formation of water vapor is 55.14 cal/mole. In the typical SOFC, pure methane is fed at the pressure of 3 atm. Total pressure of gases on anodic side of the fuel cell is observed to be 3.6 atm. Air is supplied at 1.3 atm. Fuel and air is supplied at the same operating temperature of 850 C. Faraday constant is 96486 J/V.mol. Calculate a) Standard open circuit potential. [9] b) Open circuit potential at the operating conditions. [9] P.T.O.

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