Document Details

Document Type : Thesis 
Document Title :
OPTIMUM THICKNESS OF BOILER WATER-WALL TUBES IN THE STEAM POWER PLANT
السمك المثالي لأنابيب جدار الغلاية في المحطات البخارية لتوليد الكهرباء
 
Subject : Faculty of Engineering 
Document Language : Arabic 
Abstract : Water wall tube temperature is a major parameter in the steam generator design which has a significant role in keeping the steam generator available. Thus, knowing the tube average temperature in different operating conditions is very important to avoid the causes of tube failure, as high temperatures are a major cause of various types of failure such as overheating, hydrogen damage, thermal stress, etc. Furthermore, deposits on the inner tube wall contribute to such failure by changing the thermal resistance of the tube wall, which causes a significant increase in the tube wall's average temperature and, consequently, lowers the allowable stress. Therefore, the model was created by using ANSYS FLUENT to find out the wall average water tube wall temperature considering the deposits layer thickness (magnetite), and this model was verified. It was found that increasing tube thickness can increase the average tube temperature but combining it with increasing deposit thickness leads to higher temperatures. In other meaning, the effect of the deposit on the tube with higher thickness is higher than on the tube with lower thickness. By discussing the minimum thickness of the water wall tube it can be concluded that the suitable selection of the tube thickness and course of action concerning the operating conditions minimize the potential overheating of water tubes in the furnace section of the boiler. Key words: Steam boiler; Water tube; deposit layer; tube wall thickness; wall tube thermal conductivity; thermo-mechanical performance 
Supervisor : Prof. Dr. Khaled Ahmed 
Thesis Type : Master Thesis 
Publishing Year : 1445 AH
2023 AD 
Co-Supervisor : Prof. Dr. Saeed Asiri 
Added Date : Tuesday, November 28, 2023 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
أحمد سليمان الجهنيAljohani, Ahmed SulaimanResearcherMaster 

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