Fluid Flow Literature Review

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CHAPTER 3 :- LITERATURE REVIEW:- Berger, Talbot, Yao (1983) reviewed first heat transfer and fluid flow characteristics through a curved tube and further it is reviewed by Shah and Joshi (1987). The latest review of fluid flow, heat transfer and dimensionless heat transfer numbers is investigated by J.S. jayakumar, S.M. Mahajani, J.C. Mandal, Kannan N. Iyer and P.K. Vijayan. Most of the heat transfer and fluid flow are investigated with constant wall and constant wall flux boundary condition. The condition of constant wall temperature is suitable in heat exchangers with phase change such as condensers and cooling tower. The situation of constant wall flux boundary condition is idealized in the study of nuclear fuel elements and electrically …show more content…

NigamI (2009) experimentally studied on Pressure Drop and heat transfer of turbulent flow in tube in tube helical heat exchanger at the pilot plant scale to analysis and distribution of the fluid flow and heat transfer under turbulent flow condition. The experiments were carried out with hot compressed air in the inner tube and cooling water in the outer tube in the countercurrent mode of operation. The flow rate of compressed air flowing in the inner tube was varied for Reynolds numbers from 14,000 to 86,000 and pressure of compressed air was varied from 10 to 30 kgf/cm2. On the basis of the experimental measurements, new correlations for friction factor and nusselt number in the inner tube of the heat exchanger were developed with deviation of ±4.6 to ±5%. Rahul Kharat, Nitin Bhardwaj*, R.S. Jha have developed a correlation of heat transfer coefficient for helical coil heat exchanger to take into account of experimental and CFD results of different functional dependent variables such as gap between the concentric coil, tube diameter and coil diameter which strongly effects the heat treansfer within error band of 3-4%. The heat transfer coefficient is validated for a wide range of Reynolds number from 20,000 and 1,50,000 and specific ratio is from 0.55 to 2.25 that covers the most engineering helical coil heat exchanger

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