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Improving Economic Efficiency of Heat Pump Integration Into Distillation Columns of Process Plants Applying Different Pressures of Evaporators and Condensers
Boldyryev, S.; Ilchenko, M.; Krajačić, G. Improving the Economic Efficiency of Heat Pump Integration into Distillation Columns of Process Plants Applying Different Pressures of Evaporators and Condensers. Energies2024, 17, 951.
Boldyryev, S.; Ilchenko, M.; Krajačić, G. Improving the Economic Efficiency of Heat Pump Integration into Distillation Columns of Process Plants Applying Different Pressures of Evaporators and Condensers. Energies 2024, 17, 951.
Boldyryev, S.; Ilchenko, M.; Krajačić, G. Improving the Economic Efficiency of Heat Pump Integration into Distillation Columns of Process Plants Applying Different Pressures of Evaporators and Condensers. Energies2024, 17, 951.
Boldyryev, S.; Ilchenko, M.; Krajačić, G. Improving the Economic Efficiency of Heat Pump Integration into Distillation Columns of Process Plants Applying Different Pressures of Evaporators and Condensers. Energies 2024, 17, 951.
Abstract
The electrification of process industries is one of the main challenges when building a low-carbon society since they consume huge amounts of fossil fuel generating different emissions. Heat pumps are one of the instruments to perform industrial sector of carbon-neutral market players. This paper proposes an approach to improve the economic feasibility of heat pumps within the process plants. Initial energy targeting with Grand Composite Curves was used and supplemented with the detailed design of the evaporator and compressor for different condensation and evaporation pressures. The trade-off between the capital cost of the heat pump and the electricity cost was investigated and optimal configurations were selected. The case study investigates the gas fractioning unit of a polymer plant where three heat pumps were integrated into distillation columns. The results demonstrated that the heat recovery is 174 MW and requires an additional 37.9 MW of electricity to reduce hot utility by 212 MW. The selection of evaporation and condensation pressure of heat pumps allows saving of 21.5 M€/y for 7 years of plant operation.
Keywords
process integration; heat pump; heat exchangers; industry electrification; energy saving; emission reduction; economic assessment.
Subject
Engineering, Chemical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Commenter:
The commenter has declared there is no conflict of interests.
Commenter:
Commenter's Conflict of Interests: I am one of the author