Teaching assistant/PhD candidate, Minia University
This research introduces thermodynamic and economic analyses on a new energy system for powering hybrid vehicles based on both energy and exergy concepts. The proposed hybrid system consists of a liquefied ammonia tank, ammonia dissociation and separation unit (DSC), an internal combustion engine (ICE), and a fuel cell system. The exhaust gases released from the ICE are exploited to supply the necessary thermal energy for the thermal decomposition process of ammonia. The ICE is fuelled with a blend of ammonia and hydrogen generated from the DSC unit. The additional hydrogen released from the DSC unit will also be provided to the fuel cell system to run the fuel cell and generate electric power, which will be supplied to the electric motor to provide the required traction to the vehicle. An optimization study is also carried out to identify the optimum design variables. Parametric studies are performed to evaluate the influence of varying the different operating parameters on the system energetic and exergetic efficiencies.