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(PDF) A Comparison of Correlations for Heat Transfer from ...
A Comparison of Correlations for Heat Transfer from Inclined Pipes. ... A Comparison of Correlations for Heat Transfe r from . ... The second is to compare the efficiency of two heat sink models ...
 A Comparison of Correlations for Heat Transfer from ...
Keywords: Convective heat transfer, Inclined pipes, Heat transfer correlations. 1. INTRODUCTION In the study of thermodynamics the average heat transfer coefficient, h, is used in calculating the convection heat transfer between a moving fluid and a solid. This is the single most important factor for evaluating convective heat loss or gain....
[PDF] A Comparison of Correlations for Heat Transfer from ...
A review of literature on heat transfer coefficients indicated very little work reported for cross-flow pipe arrangement at various angles of inclination. In this study forced airflow at 1.1 m/s and 2.5 m/s across 2 steel pipes of diameters 0.034m and 0.049m were examined with pipe orientation inclined at 30 and 60 degrees to the horizontal position. A comparison of the experimentally ......
A Comparison of Correlations for Heat Transfer from ...
A review of literature on heat transfer coefficients indicated very little work reported for cross-flow pipe arrangement at various angles of inclination. In this study forced airflow at 1.1 m/s and 2.5 m/s across 2 steel pipes of diameters 0.034m and 0.049m were examined with pipe orientation inclined at 30 and 60 degrees to the horizontal position....
A Comparison of Correlations for Heat Transfer from ...
A Comparison of Correlations for Heat Transfer from Inclined Pipes . ... this studyforced airflow at 1.1 m/s and 2.5 m/s across 2 steel pipes of diameters 0.034m and0.049m were examined with pipe orientation inclined at 30 and 60 degrees to thehorizontal position. A comparison of the experimentally determined Nu and theconventional method using ......
Modeling of heat transfer coefficient for upward no-phase ...
Table 2 summarizes the existing correlations of heat transfer coefficient for no-phase-change two-phase flow. In total, 12 two-phase heat transfer coefficient correlations from different sources are collected, including 3 from horizontal pipes, 8 from vertical pipes and 1 from inclined pipes....
Operation regimes and heat transfer coefficients in sodium ...
Comparison between measured heat transfer coefficients and correlations from the literature ... Thus, for the fin and low performance GB regimes, the correlation for the heat transfer coefficient in the condenser has the ... C.A. BusseTheory of the ultimate heat transfer limit of cylindrical heat pipes. International Journal of Heat Mass ......
A GENERAL CORRELATION FOR HEAT TRANSFER DURING FILM ...
A GENERAL CORRELATION FOR HEAT TRANSFER DURING FILM CONDENSATION INSIDE PIPES 15 Rush Street, Port Jefferson Station, NY 11776, U.S.A. (Received 27 March 1978 and in reoisedform 7 August 1978) Abstract-A simple dimensionless correlation for predicting heat-transfer coefficients during film
Condensation heat transfer in smooth inclined tubes for ...
Abstract This paper presents the effects of saturation temperature and inclination angle on convective heat transfer during condensation of R134a in an inclined smooth tube of inner diameter of 8.38 mm. Experiments were conducted for inclination angles ranging from −90° (vertical downwards) to +90° (vertical upwards) for mass fluxes between 100 kg/m 2 s and 400 kg/m 2 s and mean vapour ...
Comparison of void fraction correlations for different flow ...
Comparison of void fraction correlations for different flow patterns in horizontal and upward inclined pipes Melkamu A. Woldesemayat, Afshin J. Ghajar * School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, OK 74078, USA Received 1 June 2006; received in revised form 13 September 2006 Abstract
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