An organic Rankine cycle (ORC) is often used in waste heat recovery applications. These are typically small-scale applications where cycle thermal efficiency is low, and the benefits of traditional cycle enhancements (such as reheat stages or feed-water heaters) do not typically outweigh the costs required to implement them. An ORC with flooded expansion and internal heat regeneration is an alt...

Thermodynamic analysis of a novel combined system which is combination of methane fired gas turbine cogeneration system (CGAM) with a supercritical CO2 recompression Brayton cycle (SCO2) and an Organic Rankine Cycle (ORC) is reported. Also, a comprehensive parametric study is performed to investigate the effects on the performance of the proposed system of some important parameters. Finally, a ...

The dependency on fossil fuels for power generation can be reduced by enhancing the energy efficiency of generating systems. refrigeration systems that typically use electricity consume a significant portion supplied to cities. STAND-ALONE system which consists combined Organic Rankine Cycle and Vapor Compression (ORC-VCR) is analyzed using first law thermodynamics. Dry natural hydrocarbons suc...

Turbo-expander is the most crucial and expensive component in Organic Rankine Cycle (ORC) power generation systems. The turbine engineering, design and research development process for ORC system is costly, time-consuming, and difficult for new-entrants in the ORC field. This paper investigates the re-design and retrofit of an off-the-shelf turbocharger for use in a 1 kW ORC system. The expande...

Thermal energy storage (TES) looks to be a promising technology for recovering waste heat or other intermittent sources, especially if it is coupled with the organic Rankine cycle (ORC) system. This system may use variety of materials, including solids, liquids, and phase change materials (PCM). article discusses PCM as thermal material in TES systems ORC systems. Other configurations used ORC;...

integrated energy systems utilizing renewable sources are sustainable and environmentally substitutes for conventional fossil-fired energy systems. a new multigeneration plant with two inputs, such as biomass and solar energy, and four useful outputs, such as cooling, heating, power, and distilled water, is presented and investigated in this paper. the proposed system includes evacuated tube so...

Despite the higher efficiency advantage, cost reduction of PV technology has been more successful compared to dish Stirling engine (DSE) due large market volume and sturdy competition. Irrespective types source, there exists a potential waste heat recovery from engines operating at temperature regime. Accordingly, make DSE commercially viable efficient, innovative ways such as hybridization (co...

The Organic Rankine Cycle (ORC) heat engine constitutes a very promising technology to recover waste heat (for instance from industry or from internal combustion engines) but also to exploit renewable energy sources (such as solar, biomass or geothermal energy). This seminar will emphasize how modeling and simulation tools could be used during the design stage of an ORC system in order to best ...