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- W54405473 abstract "The use of a power generating organic Rankine cycle with solution circuit (ORCSC), also known as the absorption-Rankine cycle, for ultra low-grade heat sources was studied. The foundation for the ORCSC is the vapour compression cycle with solution circuit (VCCSC). Reversing the VCCSC creates a power-generating cycle similar in nature to the organic Rankine cycle, but with higher thermal efficiencies. The working fluid of the ORCSC is a binary mixture consisting of carbon dioxide acting as the volatile component in the vapour phase, and acetone as the solution. The mixture properties were set using the Lee-Kesler-Plocker equation of state. Carbon dioxide has the thermodynamic advantage of a large volumetric heat capacity, which enables the use of smaller turbines. The addition of a solution circuit results in significantly lower working pressures when compared to a cycle with pure carbon dioxide. Numerical modeling has shown that the ORCSC can achieve 45 to 50% of the Carnot thermal efficiency even for source temperatures as low as 80°C. Furthermore, this system was shown to be easily adapted for a range of source and sink temperatures by adjusting the concentration of the absorbent used in the working pair." @default.
- W54405473 created "2016-06-24" @default.
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- W54405473 date "2012-01-01" @default.
- W54405473 modified "2023-09-27" @default.
- W54405473 title "Organic rankine cycle with solution circuit for low-grade heat recovery" @default.
- W54405473 hasPublicationYear "2012" @default.
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