The Influence of Tube Thickness on the Shell Side of the Air preheater As a Form of Corrosion Prevention

Isi Artikel Utama

Kinanti Ulyasa
Slameto Slameto
Sri Widarti

Abstrak

Air preheater as a heat recovery technology is generally applied in the powerplant industry and used to heat combustion air, which increases the efficiency of the combustion chamber in the boiler. In this case, air preheater has tubular recuperative type typically located at the bottom of the circulating fluidized boiler for utilizing the lowest temperature exhaust gas. A significant presence of SO2 in the exhaust gas can lead to cold-end corrosion and cause leaks. The low tube thickness in the air preheater provides a good heat transfer performance unfortunately the corrosion issue has not been considered. By increasing the tube thickness, its aimed to extend the life time of the tubes with good corrosion resistance. This study is performed with calculations using empirical equations and validated results using Heat Transfer Research Inc (HTRI) software. Increasing the tube thickness impacts decreasing the heat transfer coefficient, increasing the flue gas (shell) pressure drop, and increasing the fouling factor. The tube thickness which determined for the corrosion prevention design of the air preheater give an overdesign of 18.14%, a heat transfer rate coefficient of 1.726 Btu/hr. ft2. °F, a shell pressure drop of 0.000541 psi, and a fouling factor of 0.114 hr. ft2. °F/Btu.

##plugins.generic.usageStats.downloads##

##plugins.generic.usageStats.noStats##

Rincian Artikel

Bagian
Articles

Referensi

[1] Y. Men, X. Liu, and T. Zhang, "A review of boiler waste heat recovery technologies in the medium-low temperature range," Energy, vol. 237. Elsevier Ltd, Dec. 15, 2021. doi: 10.1016/j.energy.2021.121560.
[2] S. Brückner, S. Liu, L. Miró, M. Radspieler, L. F. Cabeza, and E. Lävemann, "Industrial waste heat recovery technologies: An economic analysis of heat transformation technologies," Appl Energy, vol. 151, pp. 157–167, 2015, doi: 10.1016/j.apenergy.2015.01.147.
[3] B. V. Reddy, K. F. Chui, N. V. Gnanapragasam, and R. C. Prasad, "Energy and exergy analyses of a CFB-based indirectly fired combined cycle power generation system," Int J Energy Res, vol. 33, no. 15, pp. 1309–1320, 2009, doi: 10.1002/er.1537.
[4] H. Jouhara, N. Khordehgah, S. Almahmoud, B. Delpech, A. Chauhan, and S. A. Tassou, "Waste heat recovery technologies and applications," Thermal Science and Engineering Progress, vol. 6. Elsevier Ltd, pp. 268–289, Jun. 01, 2018. doi: 10.1016/j.tsep.2018.04.017.
[5] C. Haddad, C. Périlhon, A. Danlos, M. X. François, and G. Descombes, "Some efficient solutions to recover low and medium waste heat: Competitiveness of the thermoacoustic technology," in Energy Procedia, Elsevier Ltd, 2014, pp. 1056–1069. doi: 10.1016/j.egypro.2014.06.125.
[6] Johnson I, Choate WT, and Davidson A, "Waste Heat Recovery: Technology and Opportunities in U.S. Industry."
[7] E. Vainio et al., "Impact of boiler load and limestone addition on SO3 and corrosive cold-end deposits in a coal-fired CFB boiler," Fuel, vol. 304, Nov. 2021, doi: 10.1016/j.fuel.2021.121313.
[8] R. Nicholson, "RECUPERATIVE AND REGENERATIVE TECHNIQUES AT HIGH TEMPERATURE*," 1983.
[9] Rinto Muhaimin S and Abdul Ghofur, "Analisis Performa Primary Air Heater (PAH) PLTU Asam Asam Unit 1 - Kalimantan Selatan," vol. 01, pp. 173–182, 2019.
[10] C. Zheng et al., "Formation, transformation, measurement, and control of SO3 in coal-fired power plants," Fuel, vol. 241, pp. 327–346, Apr. 2019, doi: 10.1016/j.fuel.2018.12.039.
[11] S. Suwarno, G. Nugroho, A. Santoso, and Witantyo, "Failure analysis of air preheater tubes in a circulating fluidized bed boiler," Eng Fail Anal, vol. 124, Jun. 2021, doi: 10.1016/j.engfailanal.2021.105380.
[12] C. Zheng et al., "Formation, transformation, measurement, and control of SO3 in coal-fired power plants," Fuel, vol. 241. Elsevier Ltd, pp. 327–346, Apr. 01, 2019. doi: 10.1016/j.fuel.2018.12.039.
[13] T. Kuppan, Heat exchanger design handbook. CRC Press, 2013.
[14] W. Faes, J. Van Bael, S. Lecompte, K. Verbeken, and M. De Paepe, "Optimization of heat exchanger design taking corrosion into account," Thermal Science and Engineering Progress, vol. 30, p. 101277, May 2022, doi: 10.1016/j.tsep.2022.101277.
[15] V Ganapathy, "Cold end corrosion: causes and cures," 1989.
[16] P. R. Roberge, Handbook of corrosion engineering. McGraw-Hill, 2000.
[17] Eric Johneri, "Perbandingan Depresiasi Umur Pakai Pipa Akibat Korosi pada Pipa Instalasi Air Dingin, Tanpa dan Dengan Program Water Treatment".
[18] "A N A M E R I C A N N A T I O N A L S T A N D A R D Stainless Steel Pipe," 2004.
[19] D.Q Kern, Process Heat Transfer. Mc Graw Hill, 1950.
[20] D. S. K. Karunasingha, "Root mean square error or mean absolute error? Use their ratio as well," Inf Sci (N Y), vol. 585, pp. 609–629, Mar. 2022, doi: 10.1016/j.ins.2021.11.036.
[21] V. Kumhar, V. Borkar, S. Imam, and P. G. Scholar, "Optimization of Heat Transfer Coefficient of Air Preheater using Computational Fluid Dynamics," 2016. [Online]. Available: www.ijsrd.com
[22] S. Basheerpv, M. Assafc, S. Mahin, and A. Bala Kumaran, "Design of Air Pre-Heater to Improve the Efficiency of Boiler in TCC Plant," International Research Journal of Engineering and Technology, 2018, [Online]. Available: www.irjet.net
[23] A. Konist, "Investigation of fouling and corrosion of low-temperature reheater in a CFBC boiler," Fuel, vol. 338, p. 127373, Apr. 2023, doi: 10.1016/j.fuel.2022.127373.
[24] K. Pourabdollah, "Fouling formation and under deposit corrosion of boiler firetubes," J Environ Chem Eng, vol. 9, no. 1, p. 104552, Feb. 2021, doi: 10.1016/j.jece.2020.104552.
[25] P. N. Sapkal, P. R. Baviskar, M. J. Sable, and P. A. Makasare, "Optimization of Air Preheater Design for the Enhancement of Heat Transfer Coefficient," International Journal of Applied Research in Mechanical Engineering, pp. 163–170, Jan. 2012, doi: 10.47893/ijarme.2012.1030.
[26] S. A. SARAVANAN Assistant Professor and C. Author Professor, "DESIGN OF SHELL AND TUBE HEAT EXCHANGER USING HTRI SUITE SOFTWARE AND VALIDATION OF RESULTS USING MANUAL CALCULATION," 2020.
[27] V. Karthikeyan, M. Sambathkumar, and K. Arulkumar, "Design and Performance Analysis of Air Pre heater for Water Tube Boiler to improve its Efficiency," Int J Sci Res Sci Eng Technol, pp. 01–06, Nov. 2021, doi: 10.32628/ijsrset218545.