Fferent values on the fuel utilization issue. When the cell operates as a fuel cell, the unique values with the fuel utilization element. When the cell operates as a fuel cell, the higher the fuel utilization element, the higher the temperature of from the cell, what ever operathigher the fuel utilization element, the higher the temperature the cell, what ever operating density present is thought of. The result is often justified analyzing the power balance. ing density present is regarded. The result may be justified analyzing the energy balance. As a matter of fact, the greater the fuel utilization issue, the greater the volume of of2 H2 As a matter of fact, the larger the fuel utilization issue, the greater the quantity H rereacting. As a AICAR Activator consequence, within this case, a greater amount of heat is also released by the acting. As a consequence, in this case, a higher level of heat can also be released by the exoexothermic course of action. thermic procedure. On the other hand, when the cell operates as an electrolyzer, the opposite trend is detected as far as the density existing is beneath a value of 854 mA/cm2 . In reality, as expected, the greater the reacting H2 O, the reduced the cell temperature. This trend is resulting from the truth that these electrochemical reactions are endothermic. The temperature difference in this case is lower than the previous case, and it decreases to 0 when a value of existing density of about 854 mA/cm2 is reached. For larger values with the present density, the opposite trend happens. The cause is the fact that, in this case, the efficiency of the cell swiftly decreases as a result of the higher operating temperature. When the threshold value of current density isEnergies 2021, 14,12 ofEnergies 2021, 14, x FOR PEER REVIEWexceeded, the rising of H2 production can no longer compensate for the growing of absorbed power.13 ofFigure six. Temperature from the cell as 1-Methyladenosine medchemexpress aafunction of density present for different fuel utilization factors Figure six. Temperature on the cell as function of density current for diverse fuel utilization components for the fuel cell mode (a) and the electrolyzer mode (b). for the fuel cell mode (a) along with the electrolyzer mode (b).On the other hand,the cell the cell generally operate within a particular rangeopposite trend is As a consequence, when should operates as an electrolyzer, the of current density detected as an optimal operation. Foris under a this parameter out of.the fact, asfield from the to attain far as the density present values of worth of 854 mA/cm2 In linear anticipated, the higher the reacting conversion efficiency is quite low. Moreover, when the temperature polarization curve, the H2O, the reduced the cell temperature. This trend is on account of the truth that these electrochemical degradation of the cell happens significantly more rapidly. The selected present of your cell is also higher, the reactions are endothermic. The temperature difference in this case is reduce than the prior case, and it decreases to 0 when a2 , whereas for the SOEC, density range for the SOFC is between 400 and 1400 mA/cm value of current density of about 854 mA/cm2 is .reached. For larger values of your existing density, is feasible to it really is 300100 mA/cm2 By indicates from the design and style parameters of the cell, it the opposite trend happens. The cause is that,power that could be supplied by the PV field or demanded by figure out the range of electric within this case, the efficiency with the cell rapidly decreases as a result of the high operating temperature. After the threshold value of existing density is exthe loa.