Dutta, P (2014) Heat transfer challenges in novel power cycles for concentrating solar power. In: Proceedings of the 15th International Heat Transfer Conference, IHTC 2014 .
Full text not available from this repository.Abstract
The demand for distributed and scalable solar thermal power plants necessitates the use of novel power cycles which are efficient and cost effective at low to medium scales. For regions pertaining to high insolation intensities, the supercritical CO2 based Brayton cycle is now recognized to be a suitable candidate, having potential to yield high efficiencies at moderate operating temperatures of about 700°C. However, development of components for such power cycles, such as solar receivers, recuperators and storage systems involve significant heat transfer challenges which are highlighted in the present paper. For moderate insolation intensity areas, the Organic Rankine Cycle (ORC) is found to be suitable for multi-scale operation. However, high efficiency ORCs require high temperature organic working fluids which are generally flammable, thus requiring the development of novel power cycles with stable organic fluid mixtures. There are challenging heat transfer issues with the design of heat exchangers with these organic fluid mixtures, which are also discussed and highlighted in the present paper.
| Item Type: | Journal Article |
|---|---|
| Publication: | Proceedings of the 15th International Heat Transfer Conference, IHTC 2014 |
| Publisher: | Begell House Inc. |
| Additional Information: | Copyright for this article belongs to Begell House Inc. |
| Keywords: | Brayton cycle; Cost effectiveness; Efficiency; Energy storage; Heat transfer; Incident solar radiation; Mixtures; Rankine cycle; Receivers (containers); Solar energy; Thermoelectric power plants, Concentrated solar power; Concentrating solar power; High temperature; Operating temperature; Organic Rankine Cycle(ORC); Organic working fluid; Solar thermal power plants; Supercritical CO2, Heat exchangers |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 11 Nov 2021 11:42 |
| Last Modified: | 11 Nov 2021 11:42 |
| URI: | http://eprints.iisc.ac.in/id/eprint/66026 |
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