HEAT TRANSFER AUGMENTATION IN A DOUBLE PIPE HEAT EXCHANGER USING WATER-BERYLLIUM OXIDE BASED NANOFLUID USING CFD
Author(s):
IRSAD ALAM, Prof. Rohit Soni
Keywords:
Heat Exchanger, Heat Transfer Augmentation, Active Techniques, Passive Techniques, Compound Techniques, Beryllium Oxide, Nano Particles, CFD.
Abstract
Many industrial application including power plants, chemical, refrigerator and air conditioning systems use heat exchangers to remove excess generated heat out of the system. Heat exchangers have several industrial and engineering applications. The design procedure of heat exchangers is quite complicated, as it needs exact analysis of heat transfer rate and pressure drop estimations apart from issues such as long-term performance and the economic aspect of the equipment. Heat transfer augmentation techniques refer to different methods used to increase rate of heat transfer without affecting much overall performance of the system. These techniques broadly are of three types viz. passive, active and compound techniques.
An investigation of forced convection heat transfer has been carried out in a double-pipe heat exchanger equipped using Beo/water as a nano fluid and distilled water as base fluid. The results achieved from the use of the BeO/water Nano fluid, are compared with Al2O3/water Nano fluid. The results of CFD reveals that at similar operating conditions, heat transfer, overall heat transfer coefficient associated with the simultaneous application of BeO /water Nano fluid better than those associated with the Al2O3/water Nano fluid. Evidently, heat transfer rate increases with increasing BeO /water Nano fluid volume concentration.
Article Details
Unique Paper ID: 146654
Publication Volume & Issue: Volume 5, Issue 1
Page(s): 324 - 329
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