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- Title
Experimental Analysis of a Polygeneration System: Assessment of the Thermal Sub-System.
- Authors
Rodrigues, André; Palmero-Marrero, Ana I.; Soares, João; Varga, Szabolcs; Oliveira, Armando C.
- Abstract
In this paper, the experimental results of the thermal sub-system of a reliable and cost-effective polygeneration solar system are presented. This polygeneration system produces heating, cooling, and electricity from solar energy, which is used in an existing test building. Heat is generated in four evacuated tube solar collectors (ETCs). The heat may be used for space cooling through a variable geometry ejector (VGE) heat pump. In order to reduce the mismatches between generation and consumption, two thermal storage tanks were added. The performance of a new thermal storage, with 400 L, able to store both sensible and latent heat, was tested. The heating performances of the test building were assessed. Ejector cycle tests were also performed, and the variation of the cooling coefficient of performance (COP) was calculated for different flow rates. For heating, the results showed that the heat storage was capable of heating the test building for 8 h, with temperatures between 22 °C and 26 °C. All results showed that this polygeneration prototype could be capable of meeting the heating and cooling needs when applied to a real building.
- Subjects
HEAT storage; SOLAR collectors; SOLAR heating; STORAGE tanks; SOLAR energy; HEAT pumps
- Publication
Energies (19961073), 2024, Vol 17, Issue 7, p1606
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en17071606