THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

External Links

SIMULATION AND ANALYSIS OF BURIED PIPE HEAT TRANSFER PERFORMANCE UNDER LEAKAGE STATE

ABSTRACT
Buried pipe leakage can lead to poor heat transfer performance and even system failure. Leakage analysis of buried tube greatly affects the operation condition diagnosis for the heat exchange in buried tube. In this study, the simulation software was applied in analyzing heat transfer process and efficiency of the buried pipes under different leakage conditions. Moreover, changes in outlet temperature, water pressure and flow rate were simulated at different positions and diverse sizes of the leakage port. According to our results, the size of leakage port greatly affected the parameter variation of the outlet port when the system started and stopped, thus affecting the cooling effect. In addition, position of the leakage port also had obvious influence on the physical state of the outlet water.
KEYWORDS
PAPER SUBMITTED: 2020-05-20
PAPER REVISED: 2020-06-28
PAPER ACCEPTED: 2020-07-10
PUBLISHED ONLINE: 2020-09-12
DOI REFERENCE: https://doi.org/10.2298/TSCI200520247C
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Issue 2, PAGES [859 - 868]
REFERENCES
  1. Zhang, C. X., et al., Operating Simulation of Ground Source Heat Pump System Based on Line-Heat-Resource Model (in Chinese), Building Science, 24 (2008), 12, pp. 71-76
  2. Nam, Y. J., Chae, H. B., Numerical Simulation for the Optimum Design of Ground Source Heat Pump System Using Building Foundation as Horizontal Heat Exchanger, Energy, 73 (2014), Aug., pp. 933-942
  3. Han, C., et al., Influence of Local Geological Data on the Performance of Horizontal Ground-Coupled Heat Pump System Integrated with Building Thermal Loads, Renewable Energy, 113 (2017), Dec., pp. 1046-1055
  4. Zhou, H., et al., Applicability of the Pipe Structure and Flow Velocity of Vertical Ground Heat Exchanger for Ground Source Heat Pump, Energy and Buildings, 117 (2016), Apr., pp. 109-119
  5. Li, C., et al., Experimental and Numerical Studies on Heat Transfer Characteristics of Vertical Deep-Buried U-bend Pipe to Supply Heat in Buildings with Geothermal Energy, Energy, 142 (2018), C, pp. 689-701
  6. Kong, X. R., et al., Experimental and Numerical Study on the Thermal Performance of Ground Source Heat Pump with a Set of Designed Buried Pipes, Applied Thermal Engineering, 114 (2017), Mar., pp. 110-117
  7. Liang, P., et al., Simulation Study on the Thermal Performance of Vertical U-tube Heat Exchangers for Ground Source Heat Pump System, Applied Thermal Engineering, 79 (2015), Mar., pp. 202-213
  8. Wang, Y. Q., et al., Characteristics of Heat Transfer for Tube Banks in Crossflow and Its Relation with That in Shell-and-Tube Heat Exchangers, International Journal of Heat and Mass Transfer, 93 (2016), Feb., pp. 584-594
  9. Habibi, M., Hakkaki-Fard, A., Evaluation and Improvement of the Thermal Performance of Different Typesof Horizontal Ground Heat Exchangers Based on Techno-Economic Analysis, Energy Conversion and Management, 171 (2018), Sept., pp. 1177-1192
  10. Sivasakthivel, T., et al., Experimental Thermal Performance Analysis of Ground Heat Exchangers for Space Heating and Cooling Applications, Renewable Energy, 113 (2017), Dec., pp. 1168-1181
  11. Bailey, N. D., Van-Zyl, J. E., Experimental Investigation of Internal Fluidisation Due to a Vertical Water Leak Jet in a Uniform Medium, Procedia Engineering, 119 (2015), 1, pp. 111-119
  12. He, G. X., et al., A Method for Simulating the Entire Leaking Process and Calculating the Liquid Leakage Volume of a Damaged Pressurized Pipeline, Journal of Hazardous Materials, 332 (2017), Feb., pp. 19-32
  13. He, G. X., et al., A Method for Fast Simulating the Liquid Seepage-Diffusion Process Coupled with Internal Flow after Leaking from Buried Pipelines, Journal of Cleaner Production, 240 (2019), Dec., 118167
  14. Zhu, H., et al., Three-Dimensional Modelling of Water Flow Due to Leakage from Pressurized Buried Pipe, Geomechanics and Engineering, 16 (2018), 4, pp. 423-433
  15. Wu, G. Z., et al., Effects of Scaling on Flow Heat Transfer in Shell and Tube Heat Exchangers (in Chinese), Contemporary Chemical Engineering, 7 (2014), pp. 1386-1388
  16. Deng, Y. J., et al., A Method for Simulating the Release of Natural Gas from the Rupture of High-Pressure Pipelines in any Terrain, Journal of Hazardous Materials, 342 (2018), Jan., pp. 418-428
  17. Chen, Q., et al., Effect of Rubber Washers on Leak Location for Assembled Pressurized Liquid Pipeline Based on Negative Pressure Wave Method, Process Safety and Environmental Protection, 119 (2018), Oct., pp. 181-190
  18. Ostapkowicz, P., Leak Detection in Liquid Transmission Pipelines Using Simplified Pressure Analysis Techniques Employing a Minimum of Standard and Non-Standard Measuring Devices, Engineering Structures, 113 (2016), Apr., pp. 194-205
  19. Li, X. H., et al., Simulation and Assessment of Underwater Gas Release and Dispersion from Subsea Gas Pipelines Leak, Process Safety and Environmental Protection, 119 (2018), Oct., pp. 46-57
  20. Kayaci, N., Demir, H., Numerical Modelling of Transient Soil Temperature Distribution for Horizontal Ground Heat Exchanger of Ground Source Heat Pump, Geothermics, 73 (2018), May, pp. 33-47
  21. Oosterkamp, A., et al., Effect of the Choice of Boundary Conditions on Modelling Ambient to Soil Heat Transfer Near a Buried Pipeline, Applied Thermal Engineering, 100 (2016), May, pp. 367-377

© 2022 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