{"title":"A CFD Study of Heat Transfer Enhancement in Pipe Flow with Al2O3 Nanofluid","authors":"P.Kumar","country":null,"institution":"","volume":57,"journal":"International Journal of Mechanical and Mechatronics Engineering","pagesStart":1843,"pagesEnd":1848,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/7518","abstract":"Fluids are used for heat transfer in many engineering\r\nequipments. Water, ethylene glycol and propylene glycol are some\r\nof the common heat transfer fluids. Over the years, in an attempt to\r\nreduce the size of the equipment and\/or efficiency of the process,\r\nvarious techniques have been employed to improve the heat transfer\r\nrate of these fluids. Surface modification, use of inserts and\r\nincreased fluid velocity are some examples of heat transfer\r\nenhancement techniques. Addition of milli or micro sized particles\r\nto the heat transfer fluid is another way of improving heat transfer\r\nrate. Though this looks simple, this method has practical problems\r\nsuch as high pressure loss, clogging and erosion of the material of\r\nconstruction. These problems can be overcome by using nanofluids,\r\nwhich is a dispersion of nanosized particles in a base fluid.\r\nNanoparticles increase the thermal conductivity of the base fluid\r\nmanifold which in turn increases the heat transfer rate. In this work,\r\nthe heat transfer enhancement using aluminium oxide nanofluid has\r\nbeen studied by computational fluid dynamic modeling of the\r\nnanofluid flow adopting the single phase approach.","references":null,"publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 57, 2011"}