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Influence of Mass Flow Rate and Concentration of Al2O3 Nanofluid on Thermal Performance of a Double Pipe Heat Exchanger

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Advances in Mechanical Processing and Design

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

Heat transfer is a very important process for industrial purposes. While there has been a constant change in the design of heat exchangers over the years which has made it more compact and efficient than ever, the area of modifications in the heat transfer fluid itself has not seen many breakthroughs. Apart from changing the design of the heat exchanger, another method is to use heat carrier fluids which have higher thermal conductivity and heat capacity. Some nanofluids (colloidal solutions of nano-sized particles suspended in a suitable base fluid) of metal oxides show superior thermal properties as compared to water. In this paper, numerical and experimental analyses have been performed to find the improvement in the overall heat transfer coefficient of a double pipe heat exchanger when Al2O3 nanofluid of 0.25% concentration is used of variable mass flow rate. Here Al2O3 nanofluid’s result has been compared with normal water are used to calculate. The overall heat transfer coefficient has been calculated by the measured value of hot and cold fluids inlet–outlet temperatures. First simulation of temperature variation has been observed in ANSYS, and then simulated result has been compared with experimental results. The experimental result shows that the overall heat transfer coefficient increases with the increase of flow rate. At 120 LPH, 240 LPH, and 320 LPH, an improvement of 44.58, 26.37, and 2.78% in the heat transfer coefficient has been observed.

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Abbreviations

U :

Overall heat transfer coefficient (W/m2°C)

Q :

Average heat transfer rate (W)

A :

Heat transfer surface area (m2)

ΔTlm:

Logarithmic mean temperature difference (°C)

T Hi :

Hot water inlet temperature

T Ho :

Hot water outlet temperature

T Ci :

Cold water inlet temperature

T Co :

Cold water outlet temperature

m :

Mass flow rate (Kg/s)

C p :

Specific heat (KJ/KgK)

ΔT:

Temperature difference

w :

Weight fraction of nanoparticles

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Authors and Affiliations

  1. Symbiosis International (Deemed University), Symbiosis Institute of Technology, Pune, India, 412115

    Vikas Gulia & Anirban Sur

Authors
  1. Vikas Gulia
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  2. Anirban Sur
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Corresponding author

Correspondence to Anirban Sur .

Editor information

Editors and Affiliations

  1. Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India

    Prita Pant

  2. Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India

    Sushil K. Mishra

  3. School of Mechanical Engineering, KIIT Deemed to be University, Bhubaneswar, Odisha, India

    Purna Chandra Mishra

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Gulia, V., Sur, A. (2021). Influence of Mass Flow Rate and Concentration of Al2O3 Nanofluid on Thermal Performance of a Double Pipe Heat Exchanger. In: Pant, P., Mishra, S.K., Mishra, P.C. (eds) Advances in Mechanical Processing and Design. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-7779-6_3

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  • DOI: https://doi.org/10.1007/978-981-15-7779-6_3

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-7778-9

  • Online ISBN: 978-981-15-7779-6

  • eBook Packages: EngineeringEngineering (R0)

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