Assessment of Iron Oxide (III)–Therminol 66 Nanofluid as a Novel Working Fluid in a Convective Radiator Heating System for Buildings
Open Access
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
This publication has 38 references indexed in Scilit:
- A new solution for reduced sedimentation flat panel solar thermal collector using nanofluidsApplied Energy, 2013
- Experimental study on heat transfer and pressure drop of nanofluid flow in a horizontal coiled wire inserted tube under constant heat fluxExperimental Thermal and Fluid Science, 2012
- Vacuum Insulation Panels (VIPs) for building construction industry – A review of the contemporary developments and future directionsApplied Energy, 2011
- A review of nanofluid stability properties and characterization in stationary conditionsInternational Journal of Heat and Mass Transfer, 2011
- Heat distribution and the future competitiveness of district heatingApplied Energy, 2011
- Application of nanofluids in heating buildings and reducing pollutionApplied Energy, 2009
- Preparation and heat transfer properties of nanoparticle-in-transformer oil dispersions as advanced energy-efficient coolantsCurrent Applied Physics, 2008
- Boiling heat transfer enhancement with carbon nanotubes for refrigerants used in building air-conditioningEnergy and Buildings, 2007
- Providing computational support for the selection of energy saving building componentsEnergy and Buildings, 2004
- A low energy building in a life cycle—its embodied energy, energy need for operation and recycling potentialBuilding and Environment, 2002