Assessment of Iron Oxide (III)–Therminol 66 Nanofluid as a Novel Working Fluid in a Convective Radiator Heating System for Buildings

M. M. Sarafraz, Alireza Dareh Baghi, Mohammad Reza Safaei, Arturo S. Leon, R. Ghomashchi, Marjan Goodarzi and Cheng-Xian Lin
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M. M. Sarafraz: School of Mechanical Engineering, University of Adelaide, Adelaide, SA 5005, Australia
Alireza Dareh Baghi: School of Mechanical Engineering, University of Adelaide, Adelaide, SA 5005, Australia
Mohammad Reza Safaei: Department of Civil and Environmental Engineering, Florida International University, Miami, FL 33174, USA
Arturo S. Leon: Department of Civil and Environmental Engineering, Florida International University, Miami, FL 33174, USA
R. Ghomashchi: School of Mechanical Engineering, University of Adelaide, Adelaide, SA 5005, Australia
Marjan Goodarzi: Sustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
Cheng-Xian Lin: Department of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, USA

Energies, 2019, vol. 12, issue 22, 1-13

Abstract: This work investigates the use of iron oxide (III)–therminol 66 oil-based nanosuspensions in a convective heating system with potential heating applications in the buildings sector. In an experimental study, characteristics of nanofluids were measured, including heat capacity, thermal conductivity, and density. The influences of mass flow rate and concentration of nanofluid on various parameters were quantified, such as pressure loss, friction coefficient, and heat transfer rate. For a concentration of 0.3 wt.%, the heat transfer increased by 46.3% and the pressure drop increased by 37.5%. The latter is due to the higher friction and viscosity of the bulk of the nanofluid. Although the pressure drop is higher, the thermo-hydraulic efficiency still increased by 19%. As a result, iron oxide (III)–therminol 66 presented reasonable thermal performance, higher heat transfer coefficient, and a lower pressure drop value (19% better performance in comparison with water) for the air–liquid convective system. Results also showed that for nanosuspensions at 0.3 wt.%, the friction factor of the system increased by 10% in comparison with the performance of the system with water.

Keywords: convective heating system; radiator; building heating; nanofluid; thermo-hydraulic performance; therminol 66 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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