Exergoeconomic assessment and parametric study of a Gas Turbine-Modular Helium Reactor combined with two Organic Rankine Cycles

Proposal of a combined heat and power plant hybridized with regeneration organic Rankine cycle: Energy-Exergy evaluation

“…Yari and Mahmoudi [16] developed a combined cycle whereby the waste heat from the precooler and intercooler of a Gas Turbine-Modular Helium Reactor (GT-MHR) were taken separately to run two ORC cycles in order to produce power. In other work, Mohammadkhani et al [17] analyzed a combined Gas Turbine-Modular Helium Reactor/Organic Rankine Cycle (GT-MHR/ORC), in exrgoeconomical standpoint. They reported that the exergoeconomic factor (f) for the combined cycle is 37.95% indicating that the capital investment cost rate is more than the exergy destruction cost rate.…”

Exergy, economic and environmental impact assessment and optimization of a novel cogeneration system including a gas turbine, a supercritical CO2 and an organic Rankine cycle (GT-HRSG/SCO2)

“…Sahoo [20] performed an exergoeconomic analysis and optimization of a cogeneration system with capacity of producing 50 MW electricity and 15 kg/s saturated steam at 2.5 bar. He reported that the cost of electricity can be reduced by 9.9% compared to the value obtained for the base case. Seyyedi et al [21] carried out exergoeconomic and sensitivity analyses as well as structural optimization for a CGAM (which was named after the first initials of the participating researchers including C. Frangopoulos, G. Tsatsaronis, A Valero and M. von Spakovsky) cogeneration system.…”

“…To make use of lower temperature heat sources for generating power organic Rankine cycle (ORC) has attracted the attention of researchers because of its simplicity, reliability, and flexibility [8,9]. However, the quality of the vapor at the ORC turbine exit should be higher to avoid droplet erosion and allow reliable operation and fast start-up [10,11].…”

Two-stage evaporation strategy to improve system performance for organic Rankine cycle

“…From the above-mentioned studies, it can be obtained that the two-or multi-stage ORC can indeed improve the system performance. However, it should be pointed out that the cycle configurations in literatures [26][27][28][29][30][31][32][33][34][35][36][37] are all parallel systems in essence, and this kind of configuration could adversely reduce the irreversible loss of the high-stage evaporator for the working fluid side. Moreover, no literature has been found to compare parallel and series two-stage organic Rankine cycles.…”

“…The thermal efficiency is increased by 13% for the high load region and the brake specific fuel consumption can be reduced by a maximum 4%. Mohammadkhani et al[35] utilized a gas turbine-modular helium reactor by two ORCs. Li et al…”