In the present paper, a new energy generation system is suggested for multiple outputs,
including a hydrogen generation unit. The plant is powered by a solar tower and involves
six different subsystems; supercritical carbon dioxide (sCO2) re-compression Brayton cycle,
ammonia-water absorption refrigeration cycle, hydrogen generation, steam generation,
drying process, and thermoelectric generator. The thermodynamic assessment of the
multi-generation system is carried out for three different cities from Turkey, Iran, and
Qatar. The energy and exergy efficiencies are calculated for base conditions to compare the
different locations. The operating output parameters for the suggested system and simple
re-compression Brayton system are compared. A parametric analysis is also done for
investigating the influences of different system variables on plant performance. According
to the results, Doha city is found to be more effective due to its geographical conditions.
Moreover, based on the comparative study, the proposed cycles produce more power than
the basic re-compression cycle with 64.59 kW, 47.33 kW, and 52.25 kW for Doha, Isparta,
and Tehran, respectively. Additionally, the analyses revealed that in the term of energy
efficiency, the suggested system has 32.29%, 32.28%, and 32.29% better performance than
the simple cycle, and in terms of exergy efficiency, it has 4%, 4.8%, and 5% better performance than the simple cycle in Doha, Isparta, and Tehran, respectively.