Energetic and exergetic Improvement of geothermal single flash cycle

Energetic and Exergetic Analysis of Complex Systems

Energetic and Exergetic Analysis of Internal Combustion Engine Cogeneration System

In this article, the first and second law analysis of diesel engine based cogeneration system was performed. Fuel utilization efficiency, rate of power, and rate of process heat of the plant were determined and various efficiencies based on both energy and exergy methods and the performance assessment parameters are defined for both the system components and the entire cogeneration plant. The o...

Energetic and Exergetic Analysis of an Ejector-Expansion Refrigeration Cycle Using the Working Fluid R32

The performance characteristics of an ejector-expansion refrigeration cycle (EEC) using R32 have been investigated in comparison with that using R134a. The coefficient of performance (COP), the exergy destruction, the exergy efficiency and the suction nozzle pressure drop (SNPD) are discussed. The results show that the application of an ejector instead of a throttle valve in R32 cycle decreases...

Energetic and Exergetic Performance Evaluation of a Solar Dish Based Dual Receiver Combined Cycle

Solar Thermal Power Plants with concentrating technologies are important for providing a major share of the clean and renewable energy needed in the future. Dish based system is a promising option for power generation since it has high concentration ratio and it does not require a large space. This paper presents a proposed solar dish based combined cycle: air based Brayton cycle as the topping...

Energetic and Exergetic Analysis of a Transcritical N2O Refrigeration Cycle with an Expander

Comparative energy and exergy investigations are reported for a transcritical N2O refrigeration cycle with a throttling valve or with an expander when the gas cooler exit temperature varies from 30 to 55 ◦C and the evaporating temperature varies from −40 to 10 ◦C. The system performance is also compared with that of similar cycles using CO2. Results show that the N2O expander cycle exhibits a l...