Advances in Nanoparticles, 2017, 6, 141-147 http://www.scirp.org/journal/anp ISSN Online: 2169-0529 ISSN Print: 2169-0510 DOI: 10.4236/anp.2017.64012 Oct. 17, 2017 141 Advances in Nanoparticles Water Based Nanofluids: A Computational Study on Temperature Distribution in a Pipe Flow Md. Ebrahim Khalil Bhuiyan, Mohammad Mahmudur Rahman Khan * , Iqbal Mahmud Department of Textile Engineering, Bangladesh University of Business and Technology, Dhaka, Bangladesh Abstract Fluid containing nanometer-sized particles (i.e. nanoparticles) is known as nanofluid. Three different nanofluids flowing in a pipe with heat source at the inlet and sink in the walls are studied. The base fluid is water. 20 nm size na- noparticle Al 2 O 3 is mixed with base fluid with volume concentrations of 0.1%, 0.2% and 0.5%. Simulation is done using ANSYS Workbench 17.1. The result shows correlation between concentration of nanoparticle and temperature gradient at the outlet of the pipe. Keywords Nanofluid, Nanoparticle, Al 2 O 3 , CFD, ANSYS 1. Introduction Nanofluids (nanoparticles fluid suspensions) [1] is the term introduced by Choi et al. [2]. Nanofluids based heat transfer fluids have better thermal properties than the host fluids. Solid nanoparticles such as metal or metal-oxide (ranging from 1 to 100 nm size) are diffused in traditional liquids e.g. water, ethylene glycol and engine oils etc. to prepare nanofluids. To gain highest possible ther- mal properties by dispersing nanoparticles (preferably less than 1 nm) uniformly at small possible volume concentration (preferably less than 1%) as well as maintaining a stable suspension is the main concern of nanofluids. Transfer of heat energy has become a major task in industrial processes [3]. Heat must be added, removed or exchanged between process streams through- out various industrial processes. Study of nanofluid shows that it can be used as a high performance heat transfer medium. The diffused nanoperticles allow How to cite this paper: Bhuiyan, Md.E.K., Khan, M.M.R. and Mahmud, I. (2017) Water Based Nanofluids: A Computational Study on Temperature Distribution in a Pipe Flow. Advances in Nanoparticles, 6, 141-147. https://doi.org/10.4236/anp.2017.64012 Received: August 9, 2017 Accepted: October 14, 2017 Published: October 17, 2017 Copyright © 2017 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access