Failure Analysis on Abnormal Thinning of Elbows in the Economizer at Waste Heat Boiler System

2015 ◽  
Author(s):  
Sheng-Hui Wang ◽  
Xiao-Ming Luo ◽  
Yu-Qing Yang ◽  
Jian Tang ◽  
Zhen-Guo Yang
Keyword(s):  
Failure Analysis ◽  
Waste Heat ◽  
Dew Point ◽  
Microstructure Analysis ◽  
Composition Analysis ◽  
Waste Heat Boiler ◽  
Metallographic Examination ◽  
Material Analysis ◽  
Wall Thinning

Abnormal wall thinning of elbows were detected in the economizer at waste heat boiler system. In the failure analysis, material analysis, metallographic examination, macro- and microstructure analysis and composition analysis were conducted. We analyzed the causes and mechanisms of abnormal wall thinning. The failure causes were found to be sulfuric dew point corrosion. Finally, corresponding countermeasures were suggested.

scholarly journals Failure analysis of primary waste heat boiler tube in ammonia plant

Heliyon ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. e06151
Author(s):  
Husaini Ardy ◽  
Yudhistira Perdana Putra ◽  
Adimas Dwi Anggoro ◽  
Arie Wibowo
Keyword(s):  
Failure Analysis ◽  
Waste Heat ◽  
Boiler Tube ◽  
Waste Heat Boiler ◽  
Ammonia Plant

Failure analysis and acoustic emission tests of an in-service waste heat boiler

2006 ◽  
Vol 13 (4) ◽  
pp. 683-697 ◽  
Author(s):  
Yu-Lin Han ◽  
Shi-Qiang Zhang ◽  
Shu-Jun Zheng ◽  
Wen-Guang Zhu ◽  
Bin Zhang
Keyword(s):  
Acoustic Emission ◽  
Failure Analysis ◽  
Waste Heat ◽  
Waste Heat Boiler

Failure analysis of leakage at tube-to-tubesheet joints of a waste heat boiler

2021 ◽  
pp. 105639
Author(s):  
Rongjuan Sui ◽  
Yanling Zhao ◽  
Baorong Ge ◽  
Weiqiang Wang
Keyword(s):  
Failure Analysis ◽  
Waste Heat ◽  
Waste Heat Boiler

Failure analysis and modeling of super heater tubes of a waste heat boiler thermally coupled in ammonia oxidation reactor

2012 ◽  
Vol 26 ◽  
pp. 285-292 ◽  
Author(s):  
Hamed Abbasfard ◽  
Mehdi Ghanbari ◽  
Amin Ghasemi ◽  
Sattar Ghader ◽  
Hasan Hashemipour Rafsanjani ◽  
...  
Keyword(s):  
Failure Analysis ◽  
Ammonia Oxidation ◽  
Waste Heat ◽  
Waste Heat Boiler ◽  
Super Heater ◽  
Oxidation Reactor

Failure analysis of the water-wall tube in KIVCET waste heat boiler

2021 ◽  
Vol 121 ◽  
pp. 105155
Author(s):  
Jiadong Li ◽  
Ping Zhou ◽  
Gang Yu ◽  
Hongjie Yan ◽  
Zhuo Chen ◽  
...  
Keyword(s):  
Failure Analysis ◽  
Waste Heat ◽  
Waste Heat Boiler ◽  
Water Wall ◽  
Water Wall Tube

scholarly journals Performance Characteristics of Solid-Desiccant Evaporative Cooling Systems

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2574 ◽  
Author(s):  
Ramadas Narayanan ◽  
Edward Halawa ◽  
Sanjeev Jain
Keyword(s):  
Air Conditioning ◽  
Natural Ventilation ◽  
Waste Heat ◽  
Numerical Study ◽  
Evaporative Cooling ◽  
Peak Load ◽  
Dew Point ◽  
Low Grade ◽  
Subtropical Climate ◽  
Cooling Systems

Air conditioning accounts for up to 50% of energy use in buildings. Increased air-conditioning-system installations not only increase total energy consumption but also raise peak load demand. Desiccant evaporative cooling systems use low-grade thermal energy, such as solar energy and waste heat, instead of electricity to provide thermal comfort. This system can potentially lead to significant energy saving, reduction in carbon emissions, and it has a low dew-point operation and large capacity range. Their light weight, simplicity of design, and close-to-atmospheric operation make them easy to maintain. This paper evaluates the applicability of this technology to the climatic conditions of Brisbane, Queensland, Australia, specifically for the residential sector. Given the subtropical climate of Brisbane, where humidity levels are not excessively high during cooling periods, the numerical study shows that such a system can be a potential alternative to conventional compression-based air-conditioning systems. Nevertheless, the installation of such a system in Brisbane’s climate zone requires careful design, proper selection of components, and a cheap heat source for regeneration. The paper also discusses the economy-cycle options for this system in such a climate and compares its effectiveness to natural ventilation.

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