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How copper based nano-particles are more effective in heat exchanger]?

Concentric tube heat exchanger

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Copper-based nanoparticles, specifically CuO and Cu-water nanofluids, have shown significant effectiveness in enhancing heat transfer in heat exchangers. Studies have demonstrated that the addition of CuO nanoparticles in water increases the convective heat transfer coefficient inside the tube of double pipe heat exchangers, leading to improved heat transfer rates . Additionally, the use of CuO nanoparticles in a compact heat exchanger (CHE) has been found to significantly increase the heat transfer rate compared to base fluids, with higher concentrations of nanoparticles resulting in more substantial enhancements . Furthermore, optimizing the structure of heat exchangers by using Cu-water nanofluids in wavy wall tubes has been shown to improve heat transfer capacity, with smaller particle sizes of Cu nanoparticles leading to enhanced heat transfer efficiency . These findings collectively highlight the superior heat transfer enhancement capabilities of copper-based nano-particles in various heat exchanger configurations.

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Open access•Journal Article•DOI Study on heat transfer enhancement of nanofluid in a new type of heat exchangers Lin Zhang, Ping Ge Qu, Yuyan Jing, Wenjie Wang, Xinyue Yao - Show less +4 more 01 Feb 2023-Journal of physics	Copper nanoparticles enhance heat transfer in the heat exchanger by improving fluid flow and increasing heat transfer capacity, with smaller particle sizes showing greater efficiency.
Open access•Posted Content•DOI Heat Transfer Enhancement in Parallel Flow Double Pipe Heat Exchanger using Aluminum Oxide and Copper Oxide Nanofluids 26 Jun 2023	Copper oxide nanoparticles exhibit 93.52% heat transfer enhancement in a double pipe heat exchanger at 4 vol% and 25 nm diameter under 20000 Reynolds number conditions.
Open access•Journal Article•DOI Experimental analysis on enhancement of heat transfer in compact heat exchanger using nano particles Dr. S. Sivalakshmi, Muralishankar A - Show less +1 more 23 Mar 2023-Indian Scientific Journal Of Research In Engineering And Management	Copper-based nanoparticles enhance heat transfer in compact heat exchangers due to their higher thermal conductivity, leading to increased heat transfer rates compared to base fluids.
Journal Article•DOI Heat Transfer Enhancement Using CuO Nanofluid in a Double Pipe U-Bend Heat Exchanger Hozaifa A. Mohamed, Majed Moalla Alhazmy, F. Mansour, El Sayed R. Negeed - Show less +3 more 01 Jun 2023-Journal of Nanofluids	Copper oxide (CuO) nanoparticles enhance convective heat transfer in double pipe heat exchangers by increasing the heat transfer coefficient, especially at 0.35% volume concentration, improving efficiency.

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