Optimization of Organic Rankine Cycles for Waste Heat Recovery From Aluminum Production Plants

  title={Optimization of Organic Rankine Cycles for Waste Heat Recovery From Aluminum Production Plants},
  author={Alessandro Francesco Castelli and Cristina Elsido and Roberto Scaccabarozzi and Lars Olof Nord and Emanuele Martelli},
  journal={Frontiers in Energy Research},
This paper presents the optimization of ORCs for recovering waste heat from a hypothetical aluminum production plant to be installed in Norway. The case study is particularly interesting because it features two hot streams at different temperatures (the pot exhaust gases and the cell wall cooling air) which make available about 16 MWth below 250 °C. First, a recently proposed cycle optimization approach is adopted to identify the most promising working fluid and optimize the cycle variables… 

Figures and Tables from this paper

Optimization of Organic Rankine Cycle Involving Operating Conditions and Work Fluids and Heat Integration
In order to reduce the waste heat emission and environmental impact of industrial processes, Organic Rankine Cycle (ORC) is gradually used for energy recovery. ORC is regarded as the most promising
Simultaneous Optimization of a Heat Exchanger Network and Operating Conditions of Organic Rankine Cycle
Heat exchanger networks (HENs) discharge a large amount of low-grade heat to the cold utilities, resulting in excessive energy consumption. Organic Rankine cycle (ORC) which converts low-grade heat
Thermo-Economic Optimization of Organic Rankine Cycle (ORC) Systems for Geothermal Power Generation: A Comparative Study of System Configurations
The suitability of organic Rankine cycle (ORC) technology for the conversion of low- and medium-grade heat sources to useful power has established this as a promising option in geothermal
Optimal integration of an Organic Rankine Cycle to a process using a heuristic approach
Energy integration among processes has been one of the most relevant approaches in the field of process synthesis, allowing for better energy use and leading to positive environmental and economic
Applications of Thermal Energy Storage in Solar Organic Rankine Cycles: A Comprehensive Review
Organic Rankine Cycles (ORCs) are promising approaches for generating power from medium or low temperature heat sources. In this regard, ORCs can be used to indirectly produce power from solar
Thermodynamic Design of Organic Rankine Cycle (ORC) Based on Petroleum Coke Combustion
Thermodynamic analysis of Organic Rankine Cycle (ORC) was performed in this work. The Petroleum Coke burner provided the required heat flux for the Butane Boiler. The simulation of pet-coke


Organic Rankine Cycle for Waste Heat Recovery in a Refinery
Waste heat recovery is one of the most important development fields for the organic Rankine cycle (ORC), where a low boiling point organic fluid is used as a working medium. The ORC can be applied to
Waste Heat Recovery from Aluminum Production
Around half of the energy consumed in aluminum production is lost as waste heat. Approximately 30–45% of the total waste heat is carried away by the exhaust gas from the smelter and is the most
Energy and exergy analysis of new refrigerant mixtures in an Organic Rankine Cycle for low temperature power generation
  • S. Sami
  • Engineering, Environmental Science
  • 2010
SYNOPSIS This paper presents and discusses the performance of environmentally-friendly refrigerant mixtures in an Organic Rankine Cycle (ORC) for power generation. The performance has been compared