Is there any specific range of W/V% for nano particles (like ZnO, TiO2 ,Fe2O3 ) used to increase the heat transfer rate ?
Interfere both in economical viability and heat transfer rate
Note:
Planning to use water and ethylene glycol as base fluid.
The range must not exceed 3 %vol. there are several references mentioned that and one of them Azimi et al. 2014. I think diameter less than 100 nm and this range of volume concentration will be good to get an increase in heat transfer and also that will depend on what application or condition that you are planning to work on. Regards
The nanofluids you mentioned in the description are widely investigated experimentally and theoretically as well. So, it will be easy to read some recent reviews in which you will find the operating conditions and the optimum concentrations of those materials. For instance, in this paper, you can find a literature survey for some types
Article Engine Cooling Using Al2O3/Water Nanofluids
Best suggestion would be to start trying with lower concentrations. In most of studies I was able to find that low concentrations could produce enhancements comparable or sometimes even greater than the enhancements produced with higher concentrations of nanomaterials. So best would be to start with lower concentrations (which also economically feasible), try with different range of concentrations with small intervals and then optimize.
- Badges
- Science topic
- Similar topics
- Engineering
- Thermal Engineering
- Thermofluid
- Heat Transfer