Experimental investigation of hybrid nanofluid inlet temperature on the oval tube heat exchanger (OTHe) performance

被引：0

作者：

Gurugubelli, Sasidhar ^{[1
]}

Lavanya, K. V. ^{[2
]}

Rao, Yarrapragada K. S. S. ^{[3
]}

Balaga, Ravikiran ^{[4
]}

Syed, Javed ^{[5
]}

机构：

[1] GMRIT, Dept Mech Engn, Rajam, India

[2] Sankethika Vidya Parishad Engn Coll, Mech Engn Dept, Visakhapatnam, India

[3] Aditya Univ, Dept Mech Engn, Surampalem, India

[4] Andhra Univ, AU Coll Engn, Dept Mech Engn, Visakhapatnam, India

[5] King Khalid Univ, Dept Mech Engn, Abha, Saudi Arabia

来源：

EXPERIMENTAL HEAT TRANSFER | 2025年

关键词：

Hybrid nanofluid; oval tube; effect of MWCNT/Fe2O3 concentration; effect of inlet temperature; enhancement factor; TRANSFER ENHANCEMENT; PRESSURE-DROP; CROSS-FLOW; DESIGN; RESISTANCE; PLAIN; WATER;

D O I：

10.1080/08916152.2025.2518984

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This study investigates using hybrid nanofluids, specifically MWCNTs and Fe2O3, to improve convective heat transfer in an innovative elliptical oval tube heat exchanger. The research examines the effects of varying concentrations (0.01% to 0.025%) and inlet temperatures (35 degrees C to 55 degrees C) on heat transfer efficiency and pressure drop. Results indicate that the oval tube design enhances secondary flow, reducing thermal boundary layer thickness and increasing the Nusselt number by up to 15.1%. The findings emphasize the need to optimize nanoparticle concentration and temperature to balance heat transfer performance and pumping power, underscoring the significance of advanced heat exchanger designs.

引用

收藏

页数：20

相关论文

共 44 条

[21] Effective utilization of CuO/water nanofluid potential in the natural circulation loop [J].

Mohammad, A. R. ;

Nagaraju, D. ;

Kolla, N. Kumar ;

Santhosi, B. V. S. R. N. .

INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2022, 19 (05) :3513-3528

[22] Examining the potential of sigma-thermic heat transfer fluid and its nanofluid in a natural circulation loop through CFD studies [J].

Nagaraju, Dora ;

Mohammad, Abdul Razack ;

Mendu, Siva Subrahmanyam ;

Maheswararao, G. Uma .

ENGINEERING RESEARCH EXPRESS, 2024, 6 (02)

[23] Experimental and numerical analysis of convective heat transfer and entropy generation of graphene/water nanofluid in AEAOT heat exchanger [J].

Nagaraju, Dora ;

Mohammad, Abdul Razack ;

Santhosi, B. V. S. R. N. ;

Kolla, Narendra Kumar ;

Tota, Rakesh Kumar .

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2023, 150

[24] Effect of graphene-based nanofluid on heat transfer performance of alternate elliptical axis oval tube heat exchanger [J].

Nagaraju, Dora ;

Mohammad, Abdul Razack .

APPLIED NANOSCIENCE, 2022, 12 (06) :1839-1858

[25] Study and application of heat-transfer surfaces assembled from partially finned flat-oval tubes [J].

Pis'mennyi, E. N. .

APPLIED THERMAL ENGINEERING, 2016, 106 :1075-1087

[26] Comparative numerical modeling complemented with multi-objective optimization and dynamic life cycle assessment of coaxial ground heat exchangers with oval-shaped and typical circular-shaped configurations [J].

Rajeh, Taha ;

Al-Kbodi, Basher Hassan ;

Li, Yang ;

Zhao, Jun ;

Zayed, Mohamed E. ;

Rehman, Shafiqur .

APPLIED THERMAL ENGINEERING, 2024, 244

[27] Experimental and numerical study on heat transfer and flow resistance of oil flow in alternating elliptical axis tubes [J].

Sajadi, A. R. ;

Sorkhabi, S. Yamani Douzi ;

Ashtiani, D. ;

Kowsari, F. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2014, 77 :124-130

[28] Experimental study on heat transfer, friction factor, entropy and exergy efficiency analyses of a corrugated plate heat exchanger using Ni/water nanofluids [J].

Saleh, B. ;

Sundar, L. Syam .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2021, 165

[29] A review on hybrid nanofluids: Recent research, development and applications [J].

Sarkar, Jahar ;

Ghosh, Pradyumna ;

Adil, Arjumand .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2015, 43 :164-177

[30] Experimental investigation of natural convection Al2O3-MWCNT/water hybrid nanofluids inside a square cavity [J].

Scott, Temiloluwa O. ;

Ewim, Daniel R. E. ;

Eloka-Eboka, Andrew C. .

EXPERIMENTAL HEAT TRANSFER, 2024, 37 (03) :294-312

← 1 2 3 4 5 →