New heat conversion technologies need to be developed and improved to take advantage of the necessary increase in the supply of renewable energy. The Organic Rankine Cycle is well suited for these applications, mainly because of its ability to recover low-grade heat and the possibility to be implemented in decentralized lower-capacity power plants. In this paper, an overview of the different ORC applications is presented. A market review is proposed including cost figures for several commercial ORC modules and manufacturers. An in-depth analysis of the technical challenges related to the technology, such as working fluid selection and expansion machine issues is then reported. Technological constraints and optimization methods are extensively described and discussed. Finally, the current trends in research and development for the next generation of Organic Rankine Cycles are presented.

Techno-economic survey of Organic Rankine Cycle (ORC) systems

How to effectively utilize low and medium temperature energy is one of the solutions to alleviate the energy shortage and environmental pollution problems. In the past twenty years, because of its feasibility and reliability, organic Rankine cycle has received widespread attentions and researches. In this paper, it reviews the selections of working fluids and expanders for organic Rankine cycle, including an analysis of the influence of working fluids' category and their thermodynamic and physical properties on the organic Rankine cycle's performance, a summary of pure and mixed working fluids' screening researches for organic Rankine cycle, a comparison of pure and mixture working fluids' applications and a discussion of all types of expansion machines' operating characteristics, which would be beneficial to select the optimal working fluid and suitable expansion machine for an effective organic Rankine cycle system.

A review of working fluid and expander selections for organic Rankine cycle

Review of organic Rankine cycles for internal combustion engine exhaust waste heat recovery

Review: Multi-objective optimization methods and application in energy saving

Experimental study on an open-drive scroll expander integrated into an ORC (Organic Rankine Cycle) system with R245fa as working fluid

Parametric optimization and performance analysis of a waste heat recovery system using Organic Rankine Cycle

Performance analysis of an Organic Rankine Cycle with superheating under different heat source temperature conditions

Parametric optimization and performance analysis of a regenerative Organic Rankine Cycle using R-123 for waste heat recovery

This paper presents an analysis of regenerative Organic Rankine Cycle (ORC), based on the parametric optimization, using R-12, R-123, R-134a, and R-717 as working fluids superheated at constant pressure. A computer program has been developed to parametrically optimize and compare the system and second law efficiency, irreversibility rates of the system and their components, availability ratio, work output, system mass flow rate with increase in turbine inlet temperature under different heat source temperature conditions. The calculated results reveal that selection of a regenerative ORC during superheating using R-123 as working fluid appears to be a choice system for converting low-grade waste heat to power.

Parametric optimization and performance analysis of a regenerative organic rankine cycle using low-grade waste heat for power generation

This paper aims at analyzing the feasibility of a waste heat recovery power generation plant based on parametric optimization and performance analysis using different organic Rankine cycle configurations and heat source temperature conditions with working fluid R-12, R-123, R-134a, and R-717. A parametric optimization of turbine inlet temperature(TIT) was performed to obtain the irreversibility rate, system efficiency, availability ratio, turbine work output, system mass flow rate, second-law efficiency, and turbine outlet quality, along the saturated vapor line and also on superheating at an inlet pressure of 2.50 MP in basic as well as regenerative organic Rankine cycle. The calculated results reveal that selection of a basic organic Rankine cycle using R-123 as working fluid gives the maximum system efficiency, turbine work output, second-law efficiency, availability ratio with minimum system irreversibility rate and system mass flow rate up to a TIT of 150°C and appears to be a choice system f...

J.P. Roy

Papers

Parametric optimization and performance analysis of a waste heat recovery system using Organic Rankine Cycle

Performance analysis of an Organic Rankine Cycle with superheating under different heat source temperature conditions

Parametric optimization and performance analysis of a regenerative Organic Rankine Cycle using R-123 for waste heat recovery

Parametric optimization and performance analysis of a regenerative organic rankine cycle using low-grade waste heat for power generation

Comparative performance study of different configurations of organic Rankine cycle using low-grade waste heat for power generation