Design of a high temperature erosion apparatus for testing of boiler tubes

Date

2013-07-25

Author

Ergün, Hüseyin
Aydınol, Mehmet Kadri
Öztürk, Tayfur
Doruk, Mustafa

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

35
views

0
downloads

An apparatus was designed that enables the testing of boiler tubes against erosion. The apparatus makes use of a tube sample and simulates conditions similar to those prevailing in boilers in lignite-based power plants. The apparatus is composed of 3 components: a furnace for heating the sample, a loading system that allows the application of tensile stresses while allowing its rotation, and an erosion unit that delivers abrasive particles to the surface of the sample. The unit, as designed, would allow testing of boiler tubes up to a temperature of 650 ◦ C and particle velocities of up to 50 m/s. The apparatus, tested at room temperature for 4 identical samples, yielded very similar erosion values, which were based on measurement of weight loss. At elevated temperature, erosion could be followed by a thickness loss value rather than the weight loss since the oxidation complicates the weight measurements. Two economizer materials (P235GH and 16Mo3) were tested with the current setup at 500 ◦ C with particle velocity of 10 m/s. The testing showed 16Mo3 performed better than P235GH did, the erosion rate of the former being 20% lower than the latter.

Subject Keywords

Boiler tubes, Erosion, Economizer, Thermal power plant

URI

https://hdl.handle.net/11511/32371

Journal

Turkish Journal of Engineering and Environmental Sciences

DOI

https://doi.org/10.3906/muh-1207-15

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Design of a high temperature erosion apparatus for testing of boiler tubes Ergün, Hüseyin; Öztürk, Tayfur; Doruk, Mustafa; Department of Metallurgical and Materials Engineering (2010) In this thesis an apparatus is designed which enables the testing of thermal power plant boiler tubes against erosion. The apparatus makes use of a tube sample directly cut from the boiler tubes and simulates conditions similar to those prevailing in boilers in lignite fired power plants. The apparatus is composed of three components; a furnace for heating the sample, a loading system which allows application of tensile stresses while allowing the rotation of the sample, and a particle blower that delivers ...
APPLICATION OF SPECTRAL ANALYSIS TECHNIQUES TO CAVITATION IN CENTRIFUGAL PUMPS ERALP, OC; ORUC, S (1993-11-05) An experimental investigation has been performed to study the inception of cavitation and the effect of entrained air on cavitation in a double suction centrifugal pump. Experiments have been organized to cover off-design flow rates and reduced suction pressures independently so that has been possible to study both the effect of flow rate and suction pressure. Air of known amounts has been entrained from the suction pipe to investigate its effect on the intensity of cavitation and the performance of the pu...
Evaluation of the efficiency increment potential for francis turbines using CFD analysis Özcan, Arslan Ömür; Aksel, Mehmet Haluk; Department of Mechanical Engineering (2016) Francis turbine is a widely used hydraulic turbine in hydropower plants. This thesis analyzes a Francis turbine using Computational Fluid Dynamics (CFD) analysis and offers an improved design in case of energy production. First the initial performance of the turbine is analyzed using CFD analysis, possible cavitation regions are evaluated and design point of the turbine is found using hill chart method and compared with the on-site efficiency measurement results. Then an optimization study is held to improv...
Use of split-disk tests for the process parameters of filament wound epoxy composite tubes Kaynak, Cevdet; PARNAS, LEVENT; ŞENEL, FİKRET (2005-08-01) The aim of this study was to investigate processing parameters of continuous fiber reinforced epoxy composite tubes produced by the filament winding technique. For this purpose, split-disk tests (according to ASTM D-2290 standard) were performed for the specimens produced with two different epoxy resin systems, five different fiber materials and five different winding angles. By determining the hoop tensile strength and modulus of these specimens, the effects of three filament-winding processing parameters;...
Performance of combined cycle power plants with external combustion Doğan, Osman Tufan; Yeşin, Tülay; Department of Mechanical Engineering (2003) Externally Fired Combined Cycle (EFCC) is a recent tcehnology which utilizes coal as the primary fuel a gas turbine cycle. EFCC is among the clean coal technologies aiming at improving the coal combustion performance in a cost effective and environmentally friendly manner. Natural gas is used as the supplementary fuel. The ultimate goal of the EFFC concept is coal onyl option, since natural gas can better be utilized in a modern Gas Turbine Combined Cycle (CCGT) plant. In this study, performance of the EFCC...

Citation Formats

H. Ergün, M. K. Aydınol, T. Öztürk, and M. Doruk, “Design of a high temperature erosion apparatus for testing of boiler tubes,” Turkish Journal of Engineering and Environmental Sciences, pp. 178–185, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32371.