Issue 15

N. 30 In tem PB of ref sys exp the cell HT stac S T (se and the gra pat cha (se tor T E con for ope har exp T T Zuliani, Frattur literature the perature me I and phosph carbon mono ormates cont tem [8]. Sev erimental an single fuel c , a non unif PEM fuel c k based on P ACK D ESIGN he stack experim Cell Cel e Fig. 1) . The has a phosp cathode and phite plates, tern and the nnels. The c e Fig. 2). Be que of 7 Nm Figure 1 : E ST B ED he stack transmit thermoc trolled using the hydroge rated in con dware, was erimental da a ed Integrità St major resear mbrane or th oric acid bas xide. They fo aining up to eral literature alysis of the ell system. T orm tempera ell stack, thi BI and phos design relie ental activity tec P-1000 M MEAs have horic acid co 1 mg/cm 2 that can with air cooling ells are stack lleville spring . xploded view experimenta ters are used ouples fitted two mass fl n circuit. Lo stant current used to cont ta. rutturale, 15 (20 ch effort on e single fuel ed single cell und that, fo 2% of CO. papers refe HT PEM fu his could be ture distribu s work prese phoric acid m s on some f [8]. The stac EA, two bip an active are ntent of mor on the anod stand a max channels. Th ed and assem washers we of the single H tion was carr to measure on the lowe ow controlle ad is contro mode. A me rol the stack 11) 29-34; DO this kind of f cell system [ operated wi r temperature Similar resul r to membra el cell stack [ related to se tion, an incre nt the main embranes, f eatures that w k, has 25 ce olar plates an a of 50 cm 2 e than 95 wt e [15]. The p imum opera e reactant flo bled betwee re used at o T PEM cell. ied out on a the reactants r and on th rs: a Sierra S lled by a Th asurement an main opera I : 10.3221/IGF-E uel cells relat 3-7]. For exa th pure hydro s above 160 ts were obta ne degradat 13, 14]. Stack veral factors ased electric design featur ocusing on v ere already lls fed in par d the gasket and an averag % in a PBI m lates were d ting temperat w field has n two steel s ne side of th Figu test bench, s inlet pressur e upper part martTrack M urlby Thand d control sy ting paramet SIS.15.04 e to the stud mpl e Korsga gen and five °C, the cell c ined by the a ion issues [9 s usually sho as: a non un al resistivity. es and the p oltage and te tested with allel. Each c s which seal e thickness o atrix. The pl esigned and ure of 180 ° a multiple se quare end pl e tie rod an re 2 : Picture o Mechanical D chematically es. The stac of the stack 100 for the a ar Instrume stem, based o ers (reactant y, developme ard et al. [7] types of ref ould operate uthors of th -12], but on w lower per iform distrib With the aim erformance c mperature di good results ell contains a the active ar f 860 µm. T atinum cataly built by the C [16]. Each rpentine pat ates, fixed w d the stack w f the 25 cells epartment of presented in k temperatur . Reactants fl ir circuit and nts TTi LD n the Nation s flows, tem nt and mode studied the p ormates, con with good p is paper for ly some stud formance wh ution of reac of experim urves of a 2 stribution. during a pre commercial ea and the re he membran st loading is authors, usin plate contai tern with fiv ith eight all t as tightened HT PEM stac the University Fig. 3. Two e is measured ow rates we a Bronkhor 300 electron al Instrumen perature) an lling of the h erformance taining up to erformance w a single fuel ies relate to en compare tants inside e ental analyze 5 cells HT P vious single PBI BASF F actant manif e is about 60 0.75 mg/cm g Sigracet B ns the flow f e square sec hreaded tie r to a maxim k designed at t of Trieste. Baumer pres using 6 K- re measured st El-Flow F ic load mod ts CompactR d to acquire igh of a 5% ith cell the d to ach an EM cell uel olds µm 2 on PP4 ield tion ods um he sure type and 201 ule, IO the