Double pipe heat exchanger design is a device which we using for heat transfer applications straightforward. This maintains one heat exchanger pipe inside another. After determining the required heat exchanger surface area, for either counter flow or parallel flow, the pipe sizes and number of bends for the double pipe heat exchanger can be selected. In double pipe heat exchanger design, an important factor is the type of flow pattern in the heat exchanger. A double pipe heat exchanger will typically be either counterblow or parallel flow. Cross flow just doesn't work for a double pipe heat exchanger. The flow pattern and the required heat exchange duty allow calculation of the log mean temperature difference. That together with an estimated overall heat transfer coefficient allows calculation of the required heat transfer surface area. Then pipe sizes, pipe lengths and number of bends can be determined. The convective heat transfer, friction factor and effectiveness of different volume concentrations of Fe3O4 Nano fluid flow in an inner tube of double pipe heat exchanger with return bend has been estimated experimentally and turbulent flow conditions. The test section used in this study is of double pipe type in which the inner tube diameter is 0.019 m, the annulus tube diameter is 0.05m and the total length of inner tube is 5 m. At a distance of 2.2mfromthe inlet of the inner tube the return bend is provided. The hot Nanofluids flows through an inner tube, whereas the cold water flows through an annulus tube. The volume concentrations of the nanoparticles used in this study are 0.03% and 8 lpm ,10 lpm mass flow rate with Reynolds number range from 9,000 to 30,000.in the process analyze the CFD analysis is performed in Ansys Fluent 15.0 workbench and its used different nanofluids used, which nanofluids better heat transfer rate find base on the results.In this process choose different nanofluids( Al2o3, Cuo ,Fe3o4) this nanofluids properties taken by different base papers.
Heat Exchanger, Nano Fluids, Thermo Physical Properties, Heat Transfer, CFD Analysis
International Journal of Trend in Scientific Research and Development - IJTSRD having
online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International
Journal which provides rapid publication of your research articles and aims to promote
the theory and practice along with knowledge sharing between researchers, developers,
engineers, students, and practitioners working in and around the world in many areas
like Sciences, Technology, Innovation, Engineering, Agriculture, Management and
many more and it is recommended by all Universities, review articles and short communications
in all subjects. IJTSRD running an International Journal who are proving quality
publication of peer reviewed and refereed international journals from diverse fields
that emphasizes new research, development and their applications. IJTSRD provides
an online access to exchange your research work, technical notes & surveying results
among professionals throughout the world in e-journals. IJTSRD is a fastest growing
and dynamic professional organization. The aim of this organization is to provide
access not only to world class research resources, but through its professionals
aim to bring in a significant transformation in the real of open access journals
and online publishing.