THERMAL SCIENCE

International Scientific Journal

Iliya K. Iliev

,

Krisztina Uzuneanu

,

Veselka Kamburova

,

Vassil Voutev

STUDY OF INTEGRAL CHARACTERISTICS AND EFFICIENCY OF A HEAT EXCHANGER OF THERMOSYPHON TYPE WITH FINNED TUBES

ABSTRACT
The experimental research aims at the analysis of the thermal performance of a gas-liquid heat exchanger in a pilot plant. Results of the conducted experiment with a finned tubes thermosyphon heat exchanger using natural gas are presented. The installation was mounted at the exit of a flue gas from an existing steam generator "PK-4" with total power of 2.88 MW in the boiler room of Vini, Sliven, Bulgaria. Different experiments were carried out at different loads of the steam generator in order to determine the efficiency of the heat exchanger. Based on these results the coefficient of heat transfer of flue gas to the finned tubes was determined, based on different modes of operation with crossed and straight pipe bundles. The effectiveness-number of transfer units method was used.
KEYWORDS
ε-NTU method, finned tubes thermosyphon, heat transfer, waste heat recovery
PAPER SUBMITTED: 2016-03-25
PAPER REVISED: 2016-09-20
PAPER ACCEPTED: 2016-10-01
PUBLISHED ONLINE: 2016-12-25
DOI REFERENCE: https://doi.org/10.2298/TSCI16S5227I
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Supplement 5, PAGES [S1227 - S1235]
REFERENCES
  1. Aliabadi, Z. H., et al., An Experimental and Theoretical Investigation on Thermal Performance of a Gas-Liquid Thermosyphon Heat Pipe Heat Exchanger in a Semi-Industrial Plant, Iranian Journal of Chemical Engineering, 6 (2009), 3, pp. 13-25
  2. Vasiliev, L. L., Heat Pipes in Modern Heat Exchangers, Applied Thermal Engineering, 25 (2005), 1, pp. 1-19
  3. Azad, E., Geoola, F., A Design Procedure for Gravity-Assisted Heat Pipe Heat Exchanger, Journal of Heat Recovery Systems, 4 (1984), 2, pp. 101-111
  4. Liu, Z., et al., Experimental Study on Heat Transfer Characteristics of Heat Pipe Heat Exchanger with Latent Heat Storage. Part І: Charging Only and Discharging Only Modes, Energy Conversion and Management, 47 (2005), 7, pp. 944-966
  5. Liu, Z., et al., Experimental Study on Heat Transfer Characteristics of Heat Pipe Heat Exchanger with Latent Heat Storage. Part ІІ: Simultaneous Charging and Discharging Modes, Energy Conversion and Management, 47 (2005), 7, pp. 967-990
  6. Shah, R. K., Giovannelli, A. D., Heat Pipe Heat Exchanger Design Theory, Hemisphere, Washington D.C., USA, 1987
  7. Tan, J. O., et al., Heat Pipe Heat Exchanger Optimization, Heat Recovery System, 11 (1991), 4, pp. 313-319
  8. Wadowski, T., et al., Characteristics of a Gravity-Assisted Heat Pipe-Based Heat Exchanger, Heat Recovery System, 11 (1991), 1, pp. 69-77
  9. Yang, F., et al., Waste Heat Recovery Using Heat Pipe Heat Exchanger for Heating Automobile Using Exhaust Gas, Applied Thermal Engineering, Elsevier Science, 23 (2003), 3, pp. 367-372
  10. Noie, S. H., Majideian, G. R., Waste Heat Recovery Using Heat Pipe Heat Exchanger (HPHE) for Surgery Rooms in Hospitals, Applied Thermal Engineering, 20 (2000), 14, pp. 1271-1282
  11. Noie, S. H., Investigation of Thermal Performance of Air-to-Air Thermosyphon Heat Exchanger Using ε-NTU Method, Applied Thermal Engineering, 26 (2005), 5, pp. 559-567
  12. Lin, S., et al., Numerical Study of Heat Pipe Application in Heat Recovery Systems, Applied Thermal Engineering, 25 (2005), 1, pp. 127-133
  13. Kays, W. M., London, A. L., Compact Heat Exchangers, 3rd ed., McGraw-Hill, New York, USA, 1984
  14. Rohsenow, W. M., Handbook of Heat Transfer Applications, McGraw-Hill, New York, USA, 1985
  15. Pioro, I. P., et al., Effective Heat Exchangers with Two Phases Thermosiphons (in Russian), Poligrafkniga, Kiev, Ukraine, 1991 www.kotlostroene.com/en/products-en.php
PDF VERSION [DOWNLOAD]
STUDY OF INTEGRAL CHARACTERISTICS AND EFFICIENCY OF A HEAT EXCHANGER OF THERMOSYPHON TYPE WITH FINNED TUBES

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, 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