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Energy and exergy analyses of GAX and GAX hybrid absorption refrigeration cycles

Yari, Mortaza; Zarin, Arash; Mahmoudi, S.M.S. - In: Renewable Energy 36 (2011) 7, pp. 2011-2020

both first and second law of thermodynamics. Exergy analyses were performed in order to calculate the total exergy …

Persistent link: https://www.econbiz.de/10010805881

Thermodynamic analysis and optimization of novel ejector-expansion TRCC (transcritical CO2) cascade refrigeration cycles (Novel transcritical CO2 cycle)

Yari, Mortaza; Mahmoudi, S.M.S. - In: Energy 36 (2011) 12, pp. 6839-6850

In this paper, two new CO2 cascade refrigeration cycles are proposed and analyzed. In both these cycles the top cycle is an ejector-expansion transcritical cycle and the bottom cycle is a sub-critical CO2 cycle. In one of these proposed cycles the waste heat from the gas cooler is utilized to...

Persistent link: https://www.econbiz.de/10010811012

Exergetic analysis of various types of geothermal power plants

Yari, Mortaza - In: Renewable Energy 35 (2010) 1, pp. 112-121

concepts, based on the exergy analysis for high-temperature geothermal resources. The considered cycles for this study are a … from the literature. Based on the exergy analysis, a comparative study was done to clarify the best cycle configuration …. The performance of each cycle has been discussed in terms of the second-law efficiency, exergy destruction rate, and first …

Persistent link: https://www.econbiz.de/10011044509

Thermodynamic analysis and optimization of a novel dual-evaporator system powered by electrical and solar energy sources

Yari, Mortaza; Mehr, A.S.; Mahmoudi, S.M.S. - In: Energy 61 (2013) C, pp. 646-656

and higher temperatures (5–10 °C) for GAX evaporator is more suitable. Detailed exergy analyses reveal that 19.89% and 5 ….92% of total input exergy, are useful in EETC evaporator and GAX evaporator, respectively. The ejector is found to be the …

Persistent link: https://www.econbiz.de/10011055730

A Comparative Exergoeconomic Analysis of Waste Heat Recovery from a Gas Turbine-Modular Helium Reactor via Organic Rankine Cycles

Shokati, Naser; Mohammadkhani, Farzad; Yari, Mortaza; … - In: Sustainability 6 (2014) 5, pp. 2474-2489

cycle (RORC). Exergoeconomic analyses are performed with the specific exergy costing (SPECO) method. First, energy and … exergy analyses are applied to the combined cycles. Then, a cost-balance, as well as auxiliary equations are developed for …-MHR/RORC has the highest and the GT-MHR/HORC has the lowest exergy destruction cost rate. …

Persistent link: https://www.econbiz.de/10010762598