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Numerical Evaluation of a HVAC System Based on a High-Performance Heat Transfer Fluid

Author

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  • Gianpiero Colangelo

    (Department of Engineering for Innovation, University of Salento, SP per Monteroni, 73100 Lecce, Italy)

  • Brenda Raho

    (Department of Engineering for Innovation, University of Salento, SP per Monteroni, 73100 Lecce, Italy)

  • Marco Milanese

    (Department of Engineering for Innovation, University of Salento, SP per Monteroni, 73100 Lecce, Italy)

  • Arturo de Risi

    (Department of Engineering for Innovation, University of Salento, SP per Monteroni, 73100 Lecce, Italy)

Abstract

Nanofluids have great potential to improve the heat transfer properties of liquids, as demonstrated by recent studies. This paper presents a novel idea of utilizing nanofluid. It analyzes the performance of a HVAC (Heating Ventilation Air Conditioning) system using a high-performance heat transfer fluid (water-glycol nanofluid with nanoparticles of Al 2 O 3 ), in the university campus of Lecce, Italy. The work describes the dynamic model of the building and its heating and cooling system, realized through the simulation software TRNSYS 17. The use of heat transfer fluid inseminated by nanoparticles in a real HVAC system is an innovative application that is difficult to find in the scientific literature so far. This work focuses on comparing the efficiency of the system working with a traditional water-glycol mixture with the same system that uses Al 2 O 3 -nanofluid. The results obtained by means of the dynamic simulations have confirmed what theoretically assumed, indicating the working conditions of the HVAC system that lead to lower operating costs and higher COP and EER, guaranteeing the optimal conditions of thermo-hygrometric comfort inside the building. Finally, the results showed that the use of a nanofluid based on water-glycol mixture and alumina increases the efficiency about 10% and at the same time reduces the electrical energy consumption of the HVAC system.

Suggested Citation

  • Gianpiero Colangelo & Brenda Raho & Marco Milanese & Arturo de Risi, 2021. "Numerical Evaluation of a HVAC System Based on a High-Performance Heat Transfer Fluid," Energies, MDPI, vol. 14(11), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:11:p:3298-:d:568957
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    References listed on IDEAS

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    Cited by:

    1. Domenico Palladino & Flavio Scrucca & Nicolandrea Calabrese & Grazia Barberio & Carlo Ingrao, 2021. "Durum-Wheat Straw Bales for Thermal Insulation of Buildings: Findings from a Comparative Energy Analysis of a Set of Wall-Composition Samples on the Building Scale," Energies, MDPI, vol. 14(17), pages 1-19, September.
    2. Marco Milanese & Francesco Micali & Gianpiero Colangelo & Arturo de Risi, 2022. "Experimental Evaluation of a Full-Scale HVAC System Working with Nanofluid," Energies, MDPI, vol. 15(8), pages 1-14, April.

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