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THE HEAT AND FLUID FLOW ANALYSIS FOR WATER HEATER

ABSTRACT
In this paper, the heat transfer and fluid flow are studied for the water heater of RV cars, in which the hot water is heated by the combustion energy of liquefied petroleum gases. Three types of combustion tubes are performed in this investigation, which are circular tube, elliptic tube and elliptic tube with screwed wire inserted. The heat transfer performances of numerical simulation results are compared with those of the experimental works; they are in good trend agreement. The elliptic combustion tube performs better than the circular one, which indicates the average 7% energy saving for the elliptic combustion tube and 12% energy saving for the elliptic combustion tube with screwed wire under static heating.
KEYWORDS
PAPER SUBMITTED: 2010-07-12
PAPER REVISED: 2010-09-16
PAPER ACCEPTED: 2010-11-11
DOI REFERENCE: https://doi.org/10.2298/TSCI11S1081L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2011, VOLUME 15, ISSUE Supplement 1, PAGES [S81 - S86]
REFERENCES
  1. Furuhata, T., et al., Performance of Numerical Spray Combustion Simulation, Energy Conversion and Management, 38 (1997), 10-13, pp. 1111-1122
  2. Koh, P. T. L., Nguyen, T. V., Jorgensen, F. R. A., Numerical Modeling of Combustion in a Zinc Flash Smelter, Applied Mathematical Modeling, 22 (1998), 11, pp. 941-948
  3. Mitsuru, Y., et al., Modeling of Eddy Characteristic Time in LES for Calculating Turbulent Diffusion Flame, International Journal of Heat and Mass Transfer, 45 (2002), 11, pp. 2343-2349
  4. Yin, C., et al., Investigation of the Flow, Combustion, Heat-transfer and Emissions from a 609 MW Utility Tangentially Fired Pulverized-Coal Boiler, Fuel, 81 (2002), 8, pp. 997-1006
  5. Raafat, G. S., Janusz, A. K., Numerical Modeling and TGA/FTIR/GCMS Investigation of Fibrous Residue Combustion, Journal of Biomass & Bioenergy, 18 (2000), 5, pp. 391-404
  6. Roux, S., et al., Studies of Mean and Unsteady Flow in a Swirled Combustor Using Experiments, Acoustic Analysis, and Large Eddy Simulations, Combustion and Flame, 141 (2005), 1-2, pp. 40-54
  7. Yutaka, S., et al., Heat Transfer Improvement and NOx Reduction by Highly Preheated Air Combustion, Energy Conversion and Management, 38 (1997), 10-13, pp.1061-1071
  8. Zhang, J., Nieh, S., Swirling, Reacting, Turbulent Gas-Particle Flow in a Vortex Combustor, Powder Technology, 112 (2000), 1-2, pp.70-78

© 2020 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence