Volume 19, Issue 5 (May 2019)                   Modares Mechanical Engineering 2019, 19(5): 1103-1114 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Kazemi Mazandarani S, Farzaneh-Gord M, Shahmardan M. Optimization of Geometric Dimensions of Fire Tube and Heat Coil Used in City Gate Stations Heaters . Modares Mechanical Engineering 2019; 19 (5) :1103-1114
URL: http://mme.modares.ac.ir/article-15-19120-en.html
1- Mechanical Engineering Department, Kharazmi Campus, Shahrood University of Technology, Shahrood, Iran
2- Mechanical Engineering Department, Engineering Faculty, Ferdowsi University of Mashhad, Mashhad, Iran , mgord@shahroodut.ac.ir
Abstract:   (8786 Views)
Prior to entering to the throttling valve of the City Gate Stations (CGS), high-pressure natural gas flow in pipelines is transmitted through Water Bath Indirect Heaters (WBIH), which is increasing its temperature to compensate for the temperature drop caused by the Joule-Thomson effect and preventing the occurrence of the hydration phenomenon, gas freezing, and subsequent blockage of the gas flow path. Because of feeding of processed gas of the network on a large scale, optimizing the WBIHs has a lot of significance. In the present study, each WBIH is simulated by a type of thermodynamic machine, consisting of two distinct thermal systems. According to the problem geometry and governing equations, the thermodynamic analysis of these two systems results in the formulation of a relationship between their thermal efficiencies together and the definition of a parameter was defined as the Thermodynamic Similarity Coefficient (TSC). Then, the results showed that always, a constant logarithmic relationship exists between of the Number of Heat Transfer Units (NTU) values difference of the fire tube and heat coil of the WBIHs with their TSC as well as a constant power relationship between their NTU values ratio with this coefficient too. Finally, by solving the equation system obtained from these two relations, it was possible to determine the optimal values of NTU for the fire tube and heat coil as functions of TSC of the WBIH and to achieve the relationship between their optimum geometric dimensions together in the most ideal heat transfer state with a maximum relative error of about 13%.
Full-Text [PDF 837 kb]   (2905 Downloads)    
Article Type: Original Research | Subject: Thermodynamics
Received: 2018/04/18 | Accepted: 2018/11/18 | Published: 2019/05/1

References
1. Machin Sazi Arak, Knowledge-Based Company. MSA Oil, Gas & Petrochemical Equipment. [Internet]. Arak: MSA; 2018 [cited 2018 Mar 17]. Available from: http://www.msa.ir/index.aspx?fkeyid=&siteid=3&pageid=257 [Link]
2. Ghaebi H, Farhang B, Rostamzadeh H, Parikhani T. Energy, exergy, economic and environmental (4E) analysis of using city gate station (CGS) heater waste for power and hydrogen production: A comparative study. International Journal of Hydrogen Energy. 2018;43(3):1855-1874. [Link] [DOI:10.1016/j.ijhydene.2017.11.093]
3. Zabihi A, Taghizadeh M. New energy-saving temperature controller for heater at natural gas gate station. Journal of Natural Gas Science and Engineering. 2015;27(Part 2):1043-1049. [Link] [DOI:10.1016/j.jngse.2015.09.046]
4. Farzaneh-Gord M, Arabkoohsar A, Deymi Dasht-bayaz M, Farzaneh-Kord V. Feasibility of accompanying uncontrolled linear heater with solar system in natural gas pressure drop stations. Energy. 2012;41(1):420-428. [Link] [DOI:10.1016/j.energy.2012.02.058]
5. Farzaneh-Gord M, Arabkoohsar A, Deymi Dasht-bayaz M, Machado L, Koury RNN. Energy and exergy analysis of natural gas pressure reduction points equipped with solar heat and controllable heaters. Renewable Energy. 2014;72:258-270. [Link] [DOI:10.1016/j.renene.2014.07.019]
6. Hoseinipanah R, Nikdel S. Replacement of shell and tube heat exchangers with conventional heaters used in the gas pressure reduction city gate stations. The 6th National Heat Exchanger Conference, 20 November, 2014, Tehran, Iran. Tehran: Civilica; 2014. [Persian] [Link]
7. Sabermoghaddam A, Farhadiyan N, Sheikhiyani H. Feasibility of energy optimization in the heaters of the gas pressure reduction station. The 5th National Conference on CFD Applications in the Chemical and Petroleum Industries, 21 May, 2014, Tehran, Iran. Tehran: Iran University of Science and Technology; 2014. [Link]
8. Azizi SH, Rashidmardani A, Andalibi MR. Study of preheating natural gas in gas pressure reduction station by the flue gas of indirect water bath heater. International Journal of Science and Engineering Investigations. 2014;3(27):17-22. [Link]
9. Ashouri E, Veysi F, Shojaeizadeh E, Asadi M. The minimum gas temperature at the inlet of regulators in natural gas pressure reduction stations (CGS) for energy saving in water bath heaters. Journal of Natural Gas Science and Engineering. 2014;21:230-240. [Link] [DOI:10.1016/j.jngse.2014.08.005]
10. Sanaye S, Mohammadi Nasab A. Modeling and optimizing a CHP system for natural gas pressure reduction plant. Energy. 2012;40(1):358-369. [Link] [DOI:10.1016/j.energy.2012.01.060]
11. Khalili E, Hoseinalipour SM, Heybatian E. Efficiency and heat losses of indirect water bath heater installed in natural gas pressure reduction station; evaluating a case study in Iran. The 8th National Energy Congress, 24 May-25 June, 2011, Tehran, Iran. Tehran: National Energy Committee of the Islamic Republic of Iran; 2011. [Link]
12. Sadoddin S, Rastegar S. Exergy analysis in city gate stations used for reducing natural gas pressure. Journal of Modeling in Engineering. 2010;8(22):13-20. [Persian] [Link]
13. Dincer I, Rosen MA. Exergy: Energy, environment and sustainable development. 2nd Edition. New York: Elsevier; 2012. pp. 31-32. [Link]
14. Bejan A. Entropy generation minimization: The method of thermodynamic optimization of finite-size systems and finite-time processes. 1st Edition. Boca Raton: CRC press; 1995. pp. 21-23 [Link]
15. Kays WM, Crawford ME. Convective heat and mass transfer. 3rd Edition. New York: McGraw-Hill Education; 1993. pp. 333-335. [Link]
16. Winterbone D, Turan A. Advanced thermodynamics for engineers. 2nd Edition. Oxford: Butterworth-Heinemann; 1996. pp. 34-39. [Link]
17. Wall G. Exergetics. Bucaramanga: Exergy Ecology Democracy; 2009. pp. 58-61. [Link]
18. Çengel YA, Boles MA. Thermodynamics: An engineering approach. 8th Edition. New York: McGraw-Hill Education; 2014. pp. 780-781. [Link]
19. Turns SR. An introduction to combustion: Concepts and applications. 2nd Edition. New York: McGraw-Hill Education; 2000. p. 649. [Link]
20. Bejan A. Advanced engineering thermodynamics. 4th Edition. Hoboken: John Wiley & Sons; 2016. pp. 18-20. [Link] [DOI:10.1002/9781119245964]
21. Incropera FP, DeWitt DP. Introduction to heat transfer. 6th Edition. Hoboken: Wiley; 2011. [Link]
22. Sauer T. Numerical analysis. 2nd Edition. London: Pearson College Division; 2012. [Link]
23. Systat Software Incorporated. SigmaPlot, Exact Graphs and Data Analysis [Internet]. Chicago: SSI; 2018 [cited 2018 Mar 17]. Available from: http://www.sigmaplot.co.uk/products/sigmaplot/sigmaplot-details [Link]
24. Shah RK, Sekulic DP. Fundamentals of heat exchanger design. 2nd Edition. Hoboken: John Wiley & Sons; 2003. pp. 120-125. [Link] [DOI:10.1002/9780470172605]
25. Lestina T, Serth RW. Process heat transfer: Principles, applications and rules of thumb. New York: Elsevier; 2007. [Link]
26. Bejan A. Convection heat transfer. 4th Edition. Hoboken: John Wiley & Sons; 2013. pp. 19-23. [Link] [DOI:10.1002/9781118671627]
27. Kakaç S, Liu H, Pramuanjaroenkij A. Heat exchangers: Selection, rating, and thermal design. 3rd Edition. Boca Raton: CRC Press; 2012. pp. 59-63. [Link] [DOI:10.1201/b11784]

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.