Intensification of heat exchanger performance utilizing nanofluids

International Journal of Thermofluids

Tabbi Wilberforce¹  A.G. Olabi¹  Khaled Elsaid²  Mohammad Ali Abdelkareem³  Enas Taha Sayed⁴  Hussein M. Maghrabie⁵  Mohamad Ramadan⁶ 

[1] Chemical Engineering Department, Minia University, Elminia, Egypt;Corresponding author.;Center for Advanced Materials Research, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates;Chemical Engineering Program, Texas A& M University, College Station, TX, United States;Department of Mechanical Engineering, Faculty of Engineering, South Valley University, Qena 83521, Egypt;Department of Sustainable and Renewable Energy Engineering, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates;

关键词: Nanofluids;    Heat exchangers;    Heat transfer intensification;    Thermal performance;    Pressure drop;   

DOI  :  

来源: DOAJ

【 摘 要 】

Heat exchangers are widely utilized in different thermal systems for diverse industrial aspects. The selection of HEx depends on the thermal efficiency, operating load, size, flexibility in operation, compatibility with working fluids, better temperature and flow controls, and comparatively low capital and maintenance costs. Heat transfer intensification of heat exchangers can be fulfilled using passive, active, or combined approaches. Utilizing nanofluids as working fluids for heat exchangers have evolved recently. The performance of heat exchangers employed different nanofluids depends mainly on the characteristics and improvement of thermophysical properties. Regarding the unique behavior of different nanofluids, researchers have attended noteworthy progress. The current study reviews and summarizes the recent implementations carried out on utilizing nanofluids in different types of heat exchangers, including plate heat exchangers, double-pipe heat exchangers, shell and tube heat exchangers, and cross-flow heat exchangers. The results showed that nanofluids with enhanced thermal conductivity, although accompanied by a considerable decrease in the heat capacity and raising viscosity, has resulted in performance enhancement of different heat exchangers types. So, the performance evaluation criterion that combines the thermal enhancement and increases the pumping power for any type of heat exchangers is requisite to evaluate the overall performance properly. The challenges and opportunities for future work of heat transfer and fluid flow for different types of heat exchangers utilizing nanofluids are discussed and presented.

【 授权许可】

Unknown