Nur Farizah Diana, Abdul Razak and M. S. M., Sani and Azmi, W. H. (2020) Heat transfer augmentation in heat exchanger by using nanofluids and vibration excitation - A review. International Journal of Automotive and Mechanical Engineering (IJAME), 17 (1). pp. 7719-7733. ISSN 1985-9325(Print); 2180-1606 (Online). (Published)
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Abstract
The nanofluids was used in heat exchanger system as an efficient heat transfer fluid to improve the heat transfer performance by passive method. Besides, another special active technique by implementing the low or high frequency vibration was used in heat exchanger to enhance the heat transfer performance. This paper reviews the heat transfer augmentation in heat exchanger by using nanofluids, vibration excitation of low and high frequency vibration. The use of nanofluids in heat exchanger system can provide better effective thermal conductivity compared to the conventional coolants. The presence of nanosize particles in nanofluids was performed better mixing flow with higher thermal properties compared to pure fluids. Additionally, the active method by inducing low and high frequency vibration technology was applied in heat exchanger system. The heat transfer augmentation by vibration excitation was resulted from the mitigation of the fouling resistance on the surface of the tube wall. It was found that vibration excitation not only increase the heat transfer rate, but also might be a solution for fouling reduction. Hence, there is a great potential of using nanofluids together with vibration excitation simultaneously in heat exchanger system to improve the heat transfer performance.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Heat transfer; heat exchanger; nanofluids; flow-induced vibration; ultrasound |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Centre of Excellence: Automotive Engineering Centre Centre of Excellence: Automotive Engineering Centre Faculty of Mechanical and Automotive Engineering Technology Institute of Postgraduate Studies |
| Depositing User: | Noorul Farina Arifin |
| Date Deposited: | 16 Dec 2019 04:14 |
| Last Modified: | 20 Oct 2020 04:57 |
| URI: | http://umpir.ump.edu.my/id/eprint/26949 |
| Download Statistic: | View Download Statistics |
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